Peter Passias

Journal Article Global Spine J · November 19, 2024 STUDY DESIGN: Retrospective cohort study of a prospectively collected single-center database. OBJECTIVE: Distal Junctional Kyphosis (DJK) is one of the most common complications in adult cervical deformity (ACD) correction. The utility of radiographic alig ... Full text Link to item Cite

Treatment of adult spine deformity: A retrospective comparison of bone morphogenic protein and bone marrow aspirate with bone allograft.

Journal Article Acta Neurochir (Wien) · November 11, 2024 UNLABELLED: BACKGROUND : The use of bone morphogenic protein (BMP-2) in adult spine deformity (ASD) surgery remains controversial more than two decades following its approval for clinical application in spine surgery. This study was performed to assess ou ... Full text Link to item Cite

Prevalence and Prognosis of Coronal Malalignment Following Lateral Lumbar Interbody Fusion for Minimally Invasive Treatment of Adult Spinal Deformity.

Journal Article Spine (Phila Pa 1976) · November 7, 2024 STUDY DESIGN: Retrospective analysis of prospective multicenter adult spinal deformity (ASD) database. OBJECTIVE: To determine the prevalence and prognosis of postoperative coronal malalignment following LLIF for ASD with Qiu type A coronal alignment. SUMM ... Full text Link to item Cite

Which components of the global alignment proportionality score have the greatest impact on outcomes in adult spinal deformity corrective surgery?

Journal Article Eur Spine J · November 4, 2024 PURPOSE: To investigate the impact of the Global Alignment and Proportion (GAP) score components on patient outcomes in Adult Spine Deformity (ASD) surgery. METHODS: Patients included underwent assessment via the GAP score and its individual components: pe ... Full text Link to item Cite

The Incremental Clinical Benefit of Adding Layers of Complexity to the Planning and Execution of Adult Spinal Deformity Corrective Surgery.

Journal Article Oper Neurosurg (Hagerstown) · November 1, 2024 BACKGROUND AND OBJECTIVES: For patients with surgical adult spinal deformity (ASD), our understanding of alignment has evolved, especially in the last 20 years. Determination of optimal restoration of alignment and spinal shape has been increasingly studie ... Full text Open Access Link to item Cite

Contemporary utilization of three-column osteotomy techniques in a prospective complex spinal deformity multicenter database: implications on full-body alignment and perioperative course.

Journal Article Spine Deform · November 2024 BACKGROUND: Research has focused on the increased correction from a three-column osteotomy (3CO) during adult spinal deformity (ASD) surgery. However, an in-depth analysis on the performance of a 3CO in a cohort of complex spinal deformity cases has not be ... Full text Open Access Link to item Cite

Thoracolumbar fusions for adult lumbar deformity show superior QALY gain and lower costs compared with upper thoracic fusions.

Journal Article Spine Deform · November 2024 PURPOSE: Adult spinal deformity (ASD) patients with sagittal plane deformity (N) or structural lumbar/thoraco-lumbar (TL) curves can be treated with fusions stopping at the TL junction or extending to the upper thoracic (UT) spine. This study evaluates the ... Full text Open Access Link to item Cite

Frail patients require instrumentation of a more proximal vertebra for a successful outcome after surgery for adult spine deformity.

Journal Article Bone Joint J · November 1, 2024 AIMS: The aim of this study was to investigate the impact of the level of upper instrumented vertebra (UIV) in frail patients undergoing surgery for adult spine deformity (ASD). METHODS: Patients with adult spinal deformity who had undergone T9-to-pelvis f ... Full text Link to item Cite

Should pelvic incidence influence realignment strategy? A detailed analysis in adult spinal deformity.

Journal Article J Neurosurg Spine · November 1, 2024 OBJECTIVE: The purpose of this study was to assess how various realignment strategies affect mechanical failure and clinical outcomes in pelvic incidence (PI)-stratified cohorts following adult spinal deformity (ASD) surgery. METHODS: Median and interquart ... Full text Link to item Cite

So Close yet So Far: The impact of undercorrection of cervical sagittal alignment during adult cervical deformity surgery - An Incremental correction analysis.

Journal Article J Clin Neurosci · October 23, 2024 BACKGROUND: To compare degrees of cSVA correction and to theorize possible minimum and maximum thresholds of cSVA correction for patients to benefit clinically. METHODS: 657 operative ACD patients in a retrospective cohort study of a prospectively enrolled ... Full text Open Access Link to item Cite

Factors Associated With the Maintenance of Cost-effectiveness at Five Years in Adult Spinal Deformity Corrective Surgery.

Journal Article Spine (Phila Pa 1976) · October 15, 2024 STUDY DESIGN: Retrospective cohort. OBJECTIVE: To evaluate factors associated with the long-term durability of cost-effectiveness (CE) in ASD patients. BACKGROUND: A substantial increase in costs associated with the surgical treatment for adult spinal defo ... Full text Open Access Link to item Cite

High-Dose TXA Is Associated with Less Blood Loss Than Low-Dose TXA without Increased Complications in Patients with Complex Adult Spinal Deformity.

Journal Article J Bone Joint Surg Am · October 3, 2024 BACKGROUND: Tranexamic acid (TXA) is commonly utilized to reduce blood loss in adult spinal deformity (ASD) surgery. Despite its widespread use, there is a lack of consensus regarding the optimal dosing regimen. The aim of this study was to assess differen ... Full text Open Access Link to item Cite

Mechanisms of lumbar spine "flattening" in adult spinal deformity: defining changes in shape that occur relative to a normative population.

Journal Article Eur Spine J · October 2024 PURPOSE: Previous work comparing ASD to a normative population demonstrated that a large proportion of lumbar lordosis is lost proximally (L1-L4). The current study expands on these findings by collectively investigating regional angles and spinal contours ... Full text Open Access Link to item Cite

The more the better? Integration of vertebral pelvic angles (VPA) PJK thresholds to existing alignment schemas for prevention of mechanical complications after adult spinal deformity surgery.

Journal Article Eur Spine J · October 2024 PURPOSE: While existing adult spinal deformity (ASD) alignment schemas acknowledge the dynamic relationship between the pelvis and spine, consideration of vertebral pelvic angles (VPA) thresholds for PJK may provide further insight into the relationship of ... Full text Link to item Cite

The Conceptualization and Derivation of the Cervical Lordosis Distribution Index.

Journal Article Spine (Phila Pa 1976) · September 30, 2024 SUMMARY OF BACKGROUND DATA: Yilgor et al developed the lumbar Lordosis Distribution Index to individualize the pelvic mismatch to each patient's pelvic incidence. The cervical lordosis distribution in relation to its apex has not been characterized. OBJECT ... Full text Open Access Link to item Cite

Evaluating the impact of multiple sclerosis on 2 year postoperative outcomes following long fusion for adult spinal deformity: a propensity score-matched analysis.

Journal Article Spine Deform · September 27, 2024 STUDY DESIGN: Retrospective cohort study. PURPOSE: The impact of neuromuscular disorders such as multiple sclerosis (MS) on outcomes following long segment fusion is underreported. This study evaluates the impact of MS on two-year (2Y) postoperative compli ... Full text Link to item Cite

The T4-L1-Hip Axis: Sagittal Spinal Realignment Targets in Long-Construct Adult Spinal Deformity Surgery: Early Impact.

Journal Article J Bone Joint Surg Am · September 18, 2024 BACKGROUND: Our understanding of the relationship between sagittal alignment and mechanical complications is evolving. In normal spines, the L1-pelvic angle (L1PA) accounts for the magnitude and distribution of lordosis and is strongly associated with pelv ... Full text Open Access Link to item Cite

Highest Achievable Outcomes for Adult Spinal Deformity Corrective Surgery: Does Frailty Severity Exert a Ceiling Effect?

Journal Article Spine (Phila Pa 1976) · September 15, 2024 STUDY DESIGN: Retrospective single-center study. OBJECTIVE: To assess the influence of frailty on optimal outcome following ASD corrective surgery. SUMMARY OF BACKGROUND DATA: Frailty is a determining factor in outcomes after ASD surgery and may exert a ce ... Full text Link to item Cite

Response to Letter to the Editor on "Critical Analysis of Radiographic and Patient Reported Outcome Following Anterior/Posterior Staged vs. Same Day Surgery in Patients Undergoing Identical Corrective Surgery for Adult Spinal Deformity".

Journal Article Spine (Phila Pa 1976) · September 4, 2024 Full text Link to item Cite

Response to Letter to the Editor on "Other Factors that Can Affect Wound Healing with Elective Lumbar Spine Surgery and Perioperative Nutritional Supplementation in Patients".

Journal Article Spine (Phila Pa 1976) · September 3, 2024 Full text Link to item Cite

How Good Are Surgeons at Achieving Their Preoperative Goal Sagittal Alignment Following Adult Deformity Surgery?

Journal Article Global Spine J · September 2024 STUDY DESIGN: Multicenter, prospective cohort. OBJECTIVES: Malalignment following adult spine deformity (ASD) surgery can impact outcomes and increase mechanical complications. We assess whether preoperative goals for sagittal alignment following ASD surge ... Full text Open Access Link to item Cite

Lumbar Lordosis Redistribution and Segmental Correction in Adult Spinal Deformity: Does it Matter?

Journal Article Spine (Phila Pa 1976) · September 1, 2024 STUDY DESIGN: Retrospective analysis of prospectively collected data. OBJECTIVE: Evaluate the impact of correcting normative segmental lordosis values on postoperative outcomes. BACKGROUND: Restoring lumbar lordosis magnitude is crucial in adult spinal def ... Full text Open Access Link to item Cite

Restoring L4-S1 Lordosis Shape in Severe Sagittal Deformity: Impact of Correction Techniques on Alignment and Complication Profile.

Journal Article World Neurosurg · September 2024 BACKGROUND: Severe sagittal plane deformity with loss of L4-S1 lordosis is disabling and can be improved through various surgical techniques. However, data are limited on the differing ability of anterior lumbar interbody fusion (ALIF), pedicle subtraction ... Full text Open Access Link to item Cite

Closing the Gap: The Incidence of Complications in Minimally Invasive Tubular, Endoscopic, and Robotic-Assisted Transforaminal Lumbar Interbody Fusion Procedures.

Journal Article World Neurosurg · September 2024 BACKGROUND: The aim of the current study was to compare the incidence of postoperative complications among minimally invasive surgery (MIS) tubular, endoscopic, and robot-assisted transforaminal lumbar interbody fusion (TLIF) techniques. METHODS: We studie ... Full text Link to item Cite

Expectations of clinical improvement following corrective surgery for adult cervical deformity based on functional disability at presentation.

Journal Article Spine Deform · September 2024 PURPOSE: To assess impact of baseline disability on HRQL outcomes. METHODS: CD patients with baseline (BL) and 2 year (2Y) data included, and ranked into quartiles by baseline NDI, from lowest/best score (Q1) to highest/worst score (Q4). Means comparison t ... Full text Open Access Link to item Cite

Contemporary guidelines for acetabular positioning in hip arthroplasty may jeopardize hip dislocation for select ASD patients

Conference Spine Journal · September 1, 2024 BACKGROUND CONTEXT: Lewinnek et al previously defined a safe zone for cup inclination (40° ± 10°) and anteversion (15° ± 10°) to reduce dislocations after total hip arthroplasty (THA). Despite the Lewinnek safe zone being respected, higher rates of prosthe ... Full text Cite

Who are super-utilizers in adult spine deformity surgery and how can surgeons identify them preoperatively?

Conference Spine Journal · September 1, 2024 BACKGROUND CONTEXT: A relatively small percentage of patients are responsible for a disproportional amount of resource utilization in adult ASD surgery and contribute to significantly elevating the average cost across the surgically treated patients. These ... Full text Cite

Three-dimensional evaluation of the dynamic interplay between pelvic anatomy, lower-limb compensation, and standing alignment in ASD

Conference Spine Journal · September 1, 2024 BACKGROUND CONTEXT: Previous studies have shown that lower limbs play a crucial role in compensating for sagittal spinal malalignment. However, these studies primarily focused on lower limb parameters in the sagittal plane, mainly knee flexion, leaving com ... Full text Cite

Quantifying the importance of upper cervical extension reserve in adult cervical deformity surgery and its impact on baseline presentation and outcomes

Conference Spine Journal · September 1, 2024 BACKGROUND CONTEXT: Hyperextension of the upper cervical spine is a prominent compensatory mechanism to maintain horizontal gaze and balance in adult cervical deformity (ACD) patients, akin to pelvic tilt in spinal deformity. The relaxation of ER and its i ... Full text Cite

Medicare's benchmarking spinal DRGs have limited utility in capturing key quality metrics for adult spinal deformity (ASD)

Conference Spine Journal · September 1, 2024 BACKGROUND CONTEXT: Heterogeneity of adult spinal deformity (ASD) and associated surgical options call into question Medicare's spinal-deformity-specific diagnosis-related group (DRG) to accurately capture nuances of episodes of care associated with ASD op ... Full text Cite

Does coronal plane deformity matter for cervicothoracic kyphosis surgery? The incidence of cervical scoliosis and influence on the outcomes of cervical deformity surgery

Conference Spine Journal · September 1, 2024 BACKGROUND CONTEXT: Cervical deformity (CD) patients may have both cervical kyphosis (CK) and coronal plane cervical deformity, ie, cervical scoliosis (CS). Although the deformity with the greatest influence on the clinical outcomes is CK, few studies have ... Full text Cite

Late to extubate? Risk factors & associations for delayed extubation after adult cervical deformity

Conference Spine Journal · September 1, 2024 BACKGROUND CONTEXT: Due to the proximity of the surgical site to important respiratory and oropharyngeal structures, patients may undergo delayed extubation after adult cervical deformity (ACD) surgery to manage postoperative airway edema/obstruction and r ... Full text Cite

Factors associated with timing for revision surgery for proximal junctional kyphosis (PJK)

Conference Spine Journal · September 1, 2024 BACKGROUND CONTEXT: Proximal junctional kyphosis (PJK) is a radiographic complication following adult spinal deformity (ASD) surgery. The decision-making process for PJK revision surgery is multi-faceted, involving the evaluation of clinical symptoms, radi ... Full text Cite

Fractional curve behavior following adult idiopathic scoliosis correction

Conference Spine Journal · September 1, 2024 BACKGROUND CONTEXT: Despite being a potential common cause of poor functional outcomes, few studies have assessed lumbosacral fractional curves (FC) behavior in adults. In particular, little is known about the temporal progression of FC in adults undergoin ... Full text Cite

Analysis of success versus failed realignment in patients with cervical deformity: in-construct angles provide novel targets for correction

Conference Spine Journal · September 1, 2024 BACKGROUND CONTEXT: Correction of cervical deformity (CD) has the potential to improve patient function significantly. However, previously described radiographic parameters cannot be measured intraoperatively. The present study investigates in-construct me ... Full text Cite

The cervical lordosis distribution index and its consideration of upper cervical region and morphology

Conference Spine Journal · September 1, 2024 BACKGROUND CONTEXT: The cervical lordosis distribution in relation to its apex has not been characterized, nor has the impact of morphologic differences and upper cervical segments. PURPOSE: The goal of this study is assess whether tailored correction of c ... Full text Cite

Do interbody devices that traverse the lumbar apex result in improved outcomes and alignment in adult spinal deformity

Conference Spine Journal · September 1, 2024 BACKGROUND CONTEXT: Interbody devices (IBD) are commonly used to correct deformity and are more often employed distally at the lumbosacral junction. Assessment of the impact on alignment and outcomes for IBD placed distal to the lumbar lordosis apex relati ... Full text Cite

Selection of upper instrumented vertebra in adult spinal deformity: risk calculator and recommendations based on proximal junctional kyphosis

Conference Spine Journal · September 1, 2024 BACKGROUND CONTEXT: The surgical correction of adult spinal deformity (ASD) presents a complex and multifaceted challenge, further intensified by the need for revision surgery. Determination of the upper instrumented vertebra can often be challenging. PURP ... Full text Cite

Contemporary treatment of complex adult spine deformity using bone morphogenic protein: a comparative analysis of outcome and complication profiles

Conference Spine Journal · September 1, 2024 BACKGROUND CONTEXT: There is controversy surrounding the use of bone morphogenic protein (BMP-2) in spine surgery with multiple off-label uses. The widespread use of BMP-2 is spine deformity surgery remains unsupported by literature. PURPOSE: To assess out ... Full text Cite

Sarcopenic obesity: an underrated phenomenon impacting adult spinal deformity intervention outcomes

Conference Spine Journal · September 1, 2024 BACKGROUND CONTEXT: The amount and quality of tissue do not always positively correlate as is the case with sarcopenic obesity. As the population of elderly people with adult spinal deformity (ASD) continues to increase, sarcopenia (decreased muscle mass) ... Full text Cite

Severe hip and knee osteoarthritis worsens patient-reported disability in adult spinal deformity patients

Conference Spine Journal · September 1, 2024 BACKGROUND CONTEXT: The complex interplay between lower extremity osteoarthritis and sagittal alignment in adult spinal deformity patients is of growing clinical interest. PURPOSE: To quantify the sequential effects of lower extremity OA on PROMs in ASD pa ... Full text Cite

A hard pill to swallow: factors associated with dysphagia following adult cervical deformity surgery

Conference Spine Journal · September 1, 2024 BACKGROUND CONTEXT: Dysphagia has long been intertwined with cervical interventions and significantly impacts patients’ quality of life. Still, the development and evolution of dysphagia is difficult to predict. PURPOSE: To discern which factors affect the ... Full text Cite

Preoperative dysphonia and dysphagia improve following cervical deformity surgery

Conference Spine Journal · September 1, 2024 BACKGROUND CONTEXT: Twenty-five percent of adult cervical deformity patients undergoing deformity correction have impairment due to a voice problem prior to surgery. Prior work has shown that these patients tend to be more frail and more likely to report p ... Full text Cite

Clinical and Patient-Reported Outcomes of Adult Spinal Deformity Surgery with 10-Year Follow-Up

Conference Spine Journal · September 1, 2024 BACKGROUND CONTEXT: Adult spinal deformity (ASD) has been demonstrated to negatively influence patients’ physical and mental health. Yet, previous literature has described that ASD corrective surgery to significantly improve patients’ quality of life and r ... Full text Cite

Optimizing surgical timing: evaluating disability, frailty, and deformity severity thresholds in adult spinal deformity

Conference Spine Journal · September 1, 2024 BACKGROUND CONTEXT: Adult spinal deformity is a complex condition with a challenging demographic that often has high frailty, disability, and deformity at the time of surgical correction. Thresholds at which there is a point of diminishing returns can help ... Full text Cite

Cost-benefit of Enhanced Recovery After Surgery protocols in adult spine deformity surgery

Conference Spine Journal · September 1, 2024 BACKGROUND CONTEXT: Enhanced Recovery After Surgery (ERAS) has been shown to accelerate patient recovery while reducing costs and maintaining high-quality patient care. The long-term effects after implementation in adult spine deformity (ASD) patients rema ... Full text Cite

Proximal junctional kyphosis and failure: How much can we attribute to known risk factors?

Conference Spine Journal · September 1, 2024 BACKGROUND CONTEXT: Despite advancements in the understanding of spinal alignment and in instrumentation for adult spine deformity (ASD) surgery, complications such as proximal junctional kyphosis and proximal junctional failure (PJK/PJF) continue to be a ... Full text Cite

Interbody device placement in thoracolumbar scoliosis malalignment affects mechanical complications and outcomes

Conference Spine Journal · September 1, 2024 BACKGROUND CONTEXT: Focal coronal malalignment in the lower lumbar spine can place significant forces on the construct and can be a challenge to correct. The use of supplemental rods and interbody devices (IBD) can potentially reduce rates of mechanical fa ... Full text Cite

Optimal octogenarians: which elderly patients best tolerate adult spinal deformity corrective surgery?

Conference Spine Journal · September 1, 2024 BACKGROUND CONTEXT: Intervention for adult spinal deformity (ASD) can be invasive, and often as patients age, they are more susceptible to the physiological burden imposed by such extensive surgeries. Still studies have proven that rigorous realignment is ... Full text Cite

Impact of Enhanced Recovery After Surgery (ERAS) protocols in adult spinal deformity corrective surgery utilizing three-column osteotomies

Conference Spine Journal · September 1, 2024 BACKGROUND CONTEXT: Spine surgery for ASD is often highly invasive, especially when requiring three column osteotomies, that can often coincide with a prolonged recovery phase. These patients might benefit from ERAS, an evidence-based multidisciplinary app ... Full text Cite

Determinants of cost-effectiveness in minimally invasive surgery for adult spinal deformity correction

Conference Spine Journal · September 1, 2024 BACKGROUND CONTEXT: The substantial financial implications of minimally invasive surgery (MIS) for adult spinal deformity (ASD) necessitate a thorough assessment of its inherent value and efficacy. Previously, factors contributing to both short-term and pr ... Full text Cite

Enhanced cost utility in adult deformity corrections can be achieved by application of contemporary age-adjusted realignment criteria

Conference Spine Journal · September 1, 2024 BACKGROUND CONTEXT: Studies have evaluated outcomes for sagittal age-adjusted alignment score (SAAS) in adult spinal deformity (ASD) corrective surgery, yet no study to date evaluated its cost-utility. PURPOSE: Our study aims to evaluate the cost-utility a ... Full text Cite

Does social deprivation index (SDI) portend predictive value of perioperative outcomes after adult spinal deformity (ASD) surgery?

Conference Spine Journal · September 1, 2024 BACKGROUND CONTEXT: The ASD population is extremely heterogeneous, and the condition is not confined to any one sociodemographic class. Still, considerable disparities exist in equitable distribution of health care resources and availability of interventio ... Full text Cite

Outcomes comparison between novel hydroxyapatite enhanced PEEK and titanium implants after anterior lumbar interbody fusion

Conference Spine Journal · September 1, 2024 BACKGROUND CONTEXT: Interbody implants have evolved to reduce the risk of nonunion with polyetheretherketone (PEEK) and titanium devices. Two novel ALIF implants, hydroxyapatite (HA) infused PEEK (HA PEEK) and titanium alloy with microtextured surface inte ... Full text Cite

Should pelvic incidence influence realignment strategy? A detailed analysis in adult spinal deformity

Conference Spine Journal · September 1, 2024 BACKGROUND CONTEXT: Pelvic incidence (PI) serves as the cornerstone for realignment schema to create a more individualized realignment target. Yet, it is not known if outcomes of realignment schema are dependent on the amount of pelvic incidence. The purpo ... Full text Cite

Alignment schematic impact on complications and outcomes in adult spinal deformity corrective surgery

Conference Spine Journal · September 1, 2024 BACKGROUND CONTEXT: Multiple alignment schematics have been proposed and utilized in adult spinal deformity (ASD). The utility of SRS-Schwab, GAP, SAAS, and Roussouly targets on reducing complications and improving outcomes in a cohort remains to be evalua ... Full text Cite

Impact of Prior Cervical Fusion on Patients Undergoing Thoracolumbar Deformity Correction.

Journal Article Spine (Phila Pa 1976) · August 15, 2024 STUDY DESIGN: Retrospective analysis of prospectively collected data. OBJECTIVE: Evaluate the impact of prior cervical constructs on upper instrumented vertebrae (UIV) selection and postoperative outcomes among patients undergoing thoracolumbar deformity c ... Full text Open Access Link to item Cite

Developing a risk score to inform the use of rhBMP-2 in adult spinal deformity surgery.

Journal Article Spine Deform · August 11, 2024 BACKGROUND: Recombinant human bone morphogenetic protein-2 (rhBMP-2) has not shown superior benefit overall in cost-effectiveness during adult spinal deformity (ASD) surgery. STUDY DESIGN/SETTING: Retrospective PURPOSE: Generate a risk score for pseudarthr ... Full text Link to item Cite

Hip Osteoarthritis in Patients Undergoing Surgery for Severe Adult Spinal Deformity: Prevalence and Impact on Spine Surgery Outcomes.

Journal Article J Bone Joint Surg Am · July 3, 2024 BACKGROUND: Hip osteoarthritis (OA) is common in patients with adult spinal deformity (ASD). Limited data exist on the prevalence of hip OA in patients with ASD, or on its impact on baseline and postoperative alignment and patient-reported outcome measures ... Full text Open Access Link to item Cite

Critical Analysis of Radiographic and Patient-Reported Outcomes Following Anterior/Posterior Staged Versus Same-Day Surgery in Patients Undergoing Identical Corrective Surgery for Adult Spinal Deformity.

Journal Article Spine (Phila Pa 1976) · July 1, 2024 STUDY DESIGN: A retrospective cohort study of a prospectively collected multicenter adult spinal deformity (ASD) database. OBJECTIVE: The aim of this study was to compare staged procedures to same-day interventions and identify the optimal time interval be ... Full text Open Access Link to item Cite

Assessing the effects of prehabilitation protocols on post-operative outcomes in adult cervical deformity surgery: does early optimization lead to optimal clinical outcomes?

Journal Article Spine Deform · July 2024 PURPOSE: To investigate the effect of a prehabilitation program on peri- and post-operative outcomes in adult cervical deformity (CD) surgery. METHODS: Operative CD patients ≥ 18 years with complete baseline (BL) and 2-year (2Y) data were stratified by enr ... Full text Link to item Cite

Assessing the Impact of Radiographic Realignment on Adult Spinal Deformity Patients with Sacroiliac Joint Pain at Presentation.

Journal Article J Clin Med · June 17, 2024 Background: Adult spinal deformity (ASD) patients with concurrent sacroiliac joint (SIJ) pain are susceptible to worse postoperative outcomes. There is scarce literature on the impact of ASD realignment surgery on SIJ pain. Methods: Patients undergoing ASD ... Full text Link to item Cite

Complication Rates Following Adult Spinal Deformity Surgery: Evaluation of the Category of Complication and Chronology.

Journal Article Spine (Phila Pa 1976) · June 15, 2024 OBJECTIVE: Provide benchmarks for the rates of complications by type and timing. STUDY DESIGN: Prospective multicenter database. BACKGROUND: Complication rates following adult spinal deformity (ASD) surgery have been previously reported. However, the inter ... Full text Open Access Link to item Cite

The Shape of the Fused Spine is Associated With Acute Proximal Junctional Kyphosis in Adult Spinal Deformity: An Assessment Based on Vertebral Pelvic Angles.

Journal Article Global Spine J · June 2024 STUDY DESIGN: Retrospective review of prospective database. OBJECTIVES: Vertebral pelvic angles (VPAs) account for complexity in spine shape by assessing the relative position of each vertebra with regard to the pelvis. This study uses VPAs to investigate ... Full text Open Access Link to item Cite

Impact of Hip and Knee Osteoarthritis on Full Body Sagittal Alignment and Compensation for Sagittal Spinal Deformity.

Journal Article Spine (Phila Pa 1976) · June 1, 2024 STUDY DESIGN: Retrospective review of prospectively collected data. OBJECTIVE: To investigate the effect of lower extremity osteoarthritis on sagittal alignment and compensatory mechanisms in adult spinal deformity (ASD). BACKGROUND: Spine, hip, and knee p ... Full text Open Access Link to item Cite

Machine learning clustering of adult spinal deformity patients identifies four prognostic phenotypes: a multicenter prospective cohort analysis with single surgeon external validation.

Journal Article Spine J · June 2024 BACKGROUND CONTEXT: Among adult spinal deformity (ASD) patients, heterogeneity in patient pathology, surgical expectations, baseline impairments, and frailty complicates comparisons in clinical outcomes and research. This study aims to qualitatively segmen ... Full text Open Access Link to item Cite

Stronger association of objective physical metrics with baseline patient-reported outcome measures than preoperative standing sagittal parameters for adult spinal deformity patients.

Journal Article J Neurosurg Spine · June 1, 2024 OBJECTIVE: Sagittal alignment measured on standing radiography remains a fundamental component of surgical planning for adult spinal deformity (ASD). However, the relationship between classic sagittal alignment parameters and objective metrics, such as wal ... Full text Open Access Link to item Cite

Analysis of tranexamic acid usage in adult spinal deformity patients with relative contraindications: does it increase the risk of complications?

Journal Article J Neurosurg Spine · June 1, 2024 OBJECTIVE: Complex spinal deformity surgeries may involve significant blood loss. The use of antifibrinolytic agents such as tranexamic acid (TXA) has been proven to reduce perioperative blood loss. However, for patients with a history of thromboembolic ev ... Full text Open Access Link to item Cite

Comparison of multilevel low-grade techniques versus three-column osteotomies in adult spinal deformity surgery: does harmonious correction matter?

Journal Article J Neurosurg Spine · June 1, 2024 OBJECTIVE: Recent debate has arisen between whether to use a three-column osteotomy (3CO) or multilevel low-grade (MLG) techniques to treat severe sagittal malalignment in adult spinal deformity (ASD) surgery. The goal of this study was to compare the outc ... Full text Link to item Cite

Is It Possible for Patients with Early Distal Junctional Kyphosis following Adult Cervical Deformity Corrective Surgery to Achieve Similar Outcomes to Their Unaffected Counterparts? An Analysis of Recovery Kinetics.

Journal Article J Clin Med · May 31, 2024 Background: Distal junctional kyphosis (DJK) is a concerning complication for surgeons performing cervical deformity (CD) surgery. Patients sustaining such complications may demonstrate worse recovery profiles compared to their unaffected peers. Methods: D ... Full text Link to item Cite

Staged Versus Same-Day Surgery in Circumferential Minimally Invasive Deformity Correction.

Journal Article Neurosurgery · May 24, 2024 BACKGROUND AND OBJECTIVES: We sought to compare long-term clinical and radiographic outcomes in patients who underwent staged vs same-day circumferential minimally invasive surgery (cMIS) for adult spinal deformity (ASD). METHODS: We reviewed staged and sa ... Full text Link to item Cite

Development of a modified frailty index for adult spinal deformities independent of functional changes following surgical correction: a true baseline risk assessment tool.

Journal Article Spine Deform · May 2024 PURPOSE: To develop a simplified, modified frailty index for adult spinal deformity (ASD) patients dependent on objective clinical factors. METHODS: ASD patients with baseline (BL) and 2-year (2Y) follow-up were included. Factors with the largest R2 value ... Full text Open Access Link to item Cite

What is the effect of preoperative depression on outcomes after minimally invasive surgery for adult spinal deformity? A prospective cohort analysis.

Journal Article J Neurosurg Spine · May 1, 2024 OBJECTIVE: Depression has been implicated with worse immediate postoperative outcomes in adult spinal deformity (ASD) correction, yet the specific impact of depression on those patients undergoing minimally invasive surgery (MIS) requires further clarity. ... Full text Open Access Link to item Cite

Are insufficient corrections a major factor in distal junctional kyphosis? A simulated analysis of cervical deformity correction using in-construct measurements.

Journal Article J Neurosurg Spine · May 1, 2024 OBJECTIVE: The present study utilized recently developed in-construct measurements in simulations of cervical deformity surgery in order to assess undercorrection and predict distal junctional kyphosis (DJK). METHODS: A retrospective review of a database o ... Full text Open Access Link to item Cite

The Evolution of Enhanced Recovery After Surgery: Assessing the Clinical Benefits of Developments Within Enhanced Recovery After Surgery Protocols in Adult Cervical Deformity Surgery.

Journal Article Clin Spine Surg · May 1, 2024 STUDY DESIGN: Retrospective cohort. OBJECTIVE: To investigate the impact of evolving Enhanced Recovery After Surgery (ERAS) protocols on outcomes after cervical deformity (CD) surgery. BACKGROUND: ERAS can help accelerate patient recovery and assist hospit ... Full text Link to item Cite

Assessing the Economic Benefits of Enhanced Recovery After Surgery (ERAS) Protocols in Adult Cervical Deformity Patients: Is the Initial Additive Cost of Protocols Offset by Clinical Gains?

Journal Article Clin Spine Surg · May 1, 2024 OBJECTIVE: To assess the financial impact of Enhanced Recovery After Surgery (ERAS) protocols and cost-effectiveness in cervical deformity corrective surgery. STUDY DESIGN: Retrospective review of prospective CD database. BACKGROUND: Enhanced Recovery Afte ... Full text Link to item Cite

The Predictive Potential of Nutritional and Metabolic Burden: Development of a Novel Validated Metric Predicting Increased Postoperative Complications in Adult Spinal Deformity Surgery.

Journal Article Spine (Phila Pa 1976) · May 1, 2024 STUDY DESIGN: A retrospective cohort review. OBJECTIVE: To develop a scoring system for predicting increased risk of postoperative complications in adult spinal deformity (ASD) surgery based on baseline nutritional and metabolic factors. BACKGROUND: Endocr ... Full text Link to item Cite

The Impact of Peri-operative Enhanced Recovery After Surgery Protocols on Outcomes Following Adult Cervical Deformity Surgery.

Journal Article Global Spine J · April 22, 2024 STUDY DESIGN: Retrospective cohort study. OBJECTIVES: To assess the impact of Enhanced recovery after surgery (ERAS) protocols on peri-operative course in adult cervical deformity (ACD) corrective surgery. METHODS: Patients ≥18 yrs with complete pre-(BL) a ... Full text Link to item Cite

Impact of Self-Reported Loss of Balance and Gait Disturbance on Outcomes following Adult Spinal Deformity Surgery.

Journal Article J Clin Med · April 11, 2024 Background: The objective of this study was to evaluate if imbalance influences complication rates, radiological outcomes, and patient-reported outcomes (PROMs) following adult spinal deformity (ASD) surgery. Methods: ASD patients with baseline and 2-year ... Full text Open Access Link to item Cite

Predictors of pelvic tilt normalization: a multicenter study on the impact of regional and lower-extremity compensation on pelvic alignment after complex adult spinal deformity surgery.

Journal Article J Neurosurg Spine · April 1, 2024 OBJECTIVE: The objective was to determine the degree of regional decompensation to pelvic tilt (PT) normalization after complex adult spinal deformity (ASD) surgery. METHODS: Operative ASD patients with 1 year of PT measurements were included. Patients wit ... Full text Open Access Link to item Cite

Current concepts in adult cervical spine deformity surgery.

Journal Article J Neurosurg Spine · April 1, 2024 Cervical spine deformity surgery has significantly evolved over recent decades. There has been substantial work performed, which has furthered the true understanding of alignment and advancements in surgical technique and instrumentation. Concomitantly, un ... Full text Link to item Cite

An Economic Analysis of Early and Late Complications After Adult Spinal Deformity Correction.

Journal Article Global Spine J · April 2024 STUDY DESIGN/SETTING: Retrospective cohort. OBJECTIVE: Adult spinal deformity (ASD) corrective surgery is often a highly invasive procedure portending patients to both immediate and long-term complications. Therefore, we sought to compare the economic impa ... Full text Link to item Cite

Can Baseline Disability Predict Outcomes in Adult Spinal Deformity Surgery?

Journal Article Spine (Phila Pa 1976) · March 15, 2024 STUDY DESIGN: Retrospective Cohort Study. OBJECTIVE: To assess if there is a threshold of baseline disability beyond which the patient-reported outcomes after surgical correction of adult spinal deformity (ASD) are adversely impacted. BACKGROUND: Patient-r ... Full text Link to item Cite

The Impact of Lumbopelvic Realignment Versus Prevention Strategies at the Upper-instrumented Vertebra on the Rates of Junctional Failure Following Adult Spinal Deformity Surgery.

Journal Article Spine (Phila Pa 1976) · March 15, 2024 STUDY DESIGN/SETTING: Retrospective. OBJECTIVE: Evaluate the surgical technique that has the greatest influence on the rate of junctional failure following ASD surgery. SUMMARY OF BACKGROUND DATA: Differing presentations of adult spinal deformity(ASD) may ... Full text Link to item Cite

The Case for Operative Efficiency in Adult Spinal Deformity Surgery: Impact of Operative Time on Complications, Length of Stay, Alignment, Fusion Rates, and Patient-Reported Outcomes.

Journal Article Spine (Phila Pa 1976) · March 1, 2024 STUDY DESIGN: Retrospective review of prospectively collected data. OBJECTIVE: To analyze the impact of operative room (OR) time in adult spinal deformity (ASD) surgery on patient outcomes. BACKGROUND: It is currently unknown if OR time in ASD patients mat ... Full text Open Access Link to item Cite

Combination radiofrequency ablation and vertebral cement augmentation for spinal metastatic tumors: A systematic review and meta-analysis of safety and treatment outcomes.

Journal Article N Am Spine Soc J · March 2024 BACKGROUND: The treatment of spine metastases continues to pose a significant clinical challenge, requiring the integration of multiple therapeutic modalities to address the multifactorial aspects of this disease process. Radiofrequency ablation (RFA) and ... Full text Link to item Cite

Outcomes and survival analysis of adult cervical deformity patients with 10-year follow-up.

Journal Article Spine J · March 2024 BACKGROUND: Previous studies have demonstrated that adult cervical deformity patients may be at increased risk of death in conjunction with increased frailty or a weakened physiologic state. However, such studies have often been limited by follow-up durati ... Full text Link to item Cite

Costs of Surgery in Adult Spinal Deformity: Do Higher Cost Surgeries Lead to Better Outcomes?

Journal Article Spine (Phila Pa 1976) · February 15, 2024 STUDY DESIGN: This was a retrospective study. OBJECTIVE: To assess the impact of surgical costs on patient-reported outcomes in adult spinal deformity (ASD). SUMMARY OF BACKGROUND DATA: With increased focus on delivering cost-effective health care, interve ... Full text Link to item Cite

Patient-specific Cervical Deformity Corrections With Consideration of Associated Risk: Establishment of Risk Benefit Thresholds for Invasiveness Based on Deformity and Frailty Severity.

Journal Article Clin Spine Surg · February 1, 2024 STUDY DESIGN/SETTING: This was a retrospective cohort study. BACKGROUND: Little is known of the intersection between surgical invasiveness, cervical deformity (CD) severity, and frailty. OBJECTIVE: The aim of this study was to investigate the outcomes of C ... Full text Open Access Link to item Cite

Revision-Free Loss of Sagittal Correction Greater Than Three Years After Adult Spinal Deformity Surgery: Who and Why?

Journal Article Spine (Phila Pa 1976) · February 1, 2024 STUDY DESIGN: Multicenter retrospective cohort study. OBJECTIVE: To investigate risk factors for loss of correction within the instrumented lumbar spine after adult spinal deformity surgery. SUMMARY OF BACKGROUND DATA: The sustainability of adult spinal de ... Full text Open Access Link to item Cite

Persistent Lower Extremity Compensation for Sagittal Imbalance After Surgical Correction of Complex Adult Spinal Deformity: A Radiographic Analysis of Early Impact.

Journal Article Oper Neurosurg (Hagerstown) · February 1, 2024 BACKGROUND AND OBJECTIVES: Achieving spinopelvic realignment during adult spinal deformity (ASD) surgery does not always produce ideal outcomes. Little is known whether compensation in lower extremities (LEs) plays a role in this disassociation. The object ... Full text Open Access Link to item Cite

Dosing Strategy for Osteobiologics Used in ACDF Surgery: Influence on Fusion Rates and Associated Complications. A Systematic Literature Review.

Journal Article Global Spine J · February 2024 STUDY DESIGN: Systematic review. OBJECTIVE: To assess the available evidence related to dose-dependent effectiveness (i.e., bone fusion) and morbidity of osteobiologics used in anterior cervical discectomy and fusion (ACDF). METHODS: Studies with more than ... Full text Link to item Cite

Patient-Centered Outcomes Following Prone Lateral Single-Position Approach to Same-Day Circumferential Spine Surgery.

Journal Article Spine (Phila Pa 1976) · February 1, 2024 STUDY DESIGN: Retrospective study. OBJECTIVE: Evaluate surgical characteristics and postoperative 2-year results of the PL approach to spinal fusion. SUMMARY OF BACKGROUND DATA: Prone-lateral(PL) single positioning has recently gained popularity in spine s ... Full text Link to item Cite

Factors Influencing Maintenance of Alignment and Functional Improvement Following Adult Spinal Deformity Surgery: A 3-Year Outcome Analysis.

Journal Article Spine (Phila Pa 1976) · January 15, 2024 STUDY DESIGN: This was a retrospective review. OBJECTIVE: To assess the factors contributing to durability of surgical results following adult spinal deformity (ASD) surgery. SUMMARY OF BACKGROUND: Factors contributing to the long-term sustainability of AS ... Full text Link to item Cite

The Importance of Incorporating Proportional Alignment in Adult Cervical Deformity Corrections Relative to Regional and Global Alignment: Steps Toward Development of a Cervical-Specific Score.

Journal Article Spine (Phila Pa 1976) · January 15, 2024 STUDY DESIGN/SETTING: Retrospective single-center study. BACKGROUND: The global alignment and proportion score is widely used in adult spinal deformity surgery. However, it is not specific to the parameters used in adult cervical deformity (ACD). PURPOSE: ... Full text Link to item Cite

Efficacy of Varying Surgical Approaches on Achieving Optimal Alignment in Adult Spinal Deformity Surgery.

Journal Article Spine (Phila Pa 1976) · January 1, 2024 BACKGROUND: The Roussouly, SRS-Schwab, and Global Alignment and Proportion (GAP) classifications define alignment by spinal shape and deformity severity. The efficacy of different surgical approaches and techniques to successfully achieve these goals is no ... Full text Open Access Link to item Cite

Adult cervical spine deformity: a state-of-the-art review.

Journal Article Spine Deform · January 2024 Adult cervical deformity is a structural malalignment of the cervical spine that may present with variety of significant symptomatology for patients. There are clear and substantial negative impacts of cervical spine deformity, including the increased burd ... Full text Open Access Link to item Cite

Compensation from mild and severe cases of early proximal junctional kyphosis may manifest as progressive cervical deformity at two year follow-up.

Journal Article Spine Deform · January 2024 BACKGROUND: Postoperative reciprocal changes (RC) in the cervical spine associated with varying factors of proximal junctional kyphosis (PJK) following fusions of the thoracopelvic spine are poorly understood. PURPOSE: Explore reciprocal changes in the cer ... Full text Open Access Link to item Cite

Impact of congestive heart failure on patients undergoing lumbar spine fusion for adult spine deformity.

Journal Article J Craniovertebr Junction Spine · 2024 BACKGROUND: With the increasing amount of elective spine fusion patients presenting with cardiac disease and congestive heart failure, it is becoming difficult to assess when it is safe to proceed with surgery. Assessing the severity of heart failure (HF) ... Full text Link to item Cite

Risk of spinal surgery among individuals who have been re-vascularized for coronary artery disease.

Journal Article J Clin Neurosci · January 2024 HYPOTHESIS: Revascularization is a more effective intervention to reduce future postop complications. METHODS: Patients undergoing elective spine fusion surgery were isolated in the PearlDiver database. Patients were stratified by having previous history o ... Full text Link to item Cite

What is the effect of preoperative depression on outcomes after minimally invasive surgery for adult spinal deformity? A prospective cohort analysis

Journal Article JOURNAL OF NEUROSURGERY-SPINE · 2024 Full text Open Access Cite

Intraoperative fluid management in adult spinal deformity surgery: variation analysis and association with outcomes

Journal Article Spine Deformity · January 1, 2024 Purpose: To evaluate the variability in intraoperative fluid management during adult spinal deformity (ASD) surgery, and analyze the association with complications, intensive care unit (ICU) requirement, and length of hospital stay (LOS). Methods: Multicen ... Full text Open Access Cite

Examining autocorrection of concurrent cervical malalignment following thoracolumbar deformity surgery

Journal Article Journal of Craniovertebral Junction and Spine · January 1, 2024 Aims: The aim of the study was to assess preoperative radiographic parameters predictive of cervical deformity (CD) autocorrection in patients undergoing thoracolumbar deformity (ASD) surgery. Study Design/Setting: This was a retrospective cohort study. Me ... Full text Cite

Defining modern iatrogenic flatback syndrome: examination of segmental lordosis in short lumbar fusion patients undergoing thoracolumbar deformity correction

Journal Article European Spine Journal · January 1, 2024 Purpose: Understanding the mechanism and extent of preoperative deformity in revision procedures may provide data to prevent future failures in lumbar spinal fusion patients. Methods: ASD patients without prior spine surgery (PRIMARY) and with prior short ... Full text Cite

Determining the utility of three-column osteotomies in revision surgery compared with primary surgeries in the thoracolumbar spine: a retrospective cohort study in the United States

Journal Article Asian Spine Journal · January 1, 2024 Study Design: Retrospective cohort study. Purpose: To determine the incidence and success of three-column osteotomies (3COs) performed in primary and revision adult spine deformity (ASD) corrective surgeries. Overview of Literature: 3COs are often required ... Full text Cite

Cost Benefit of Implementation of Risk Stratification Models for Adult Spinal Deformity Surgery.

Journal Article Global Spine J · December 11, 2023 STUDY DESIGN/SETTING: Retrospective cohort study. OBJECTIVE: Assess the extent to which defined risk factors of adverse events are drivers of cost-utility in spinal deformity (ASD) surgery. METHODS: ASD patients with 2-year (2Y) data were included. Tertile ... Full text Open Access Link to item Cite

The impact of baseline cervical malalignment on the development of proximal junctional kyphosis following surgical correction of thoracolumbar adult spinal deformity.

Journal Article J Neurosurg Spine · December 1, 2023 OBJECTIVE: The objective of this study was to identify the effect of baseline cervical deformity (CD) on proximal junctional kyphosis (PJK) and proximal junctional failure (PJF) in patients with adult spinal deformity (ASD). METHODS: This study was a retro ... Full text Open Access Link to item Cite

Predictive role of global spinopelvic alignment and upper instrumented vertebra level in symptomatic proximal junctional kyphosis in adult spinal deformity.

Journal Article J Neurosurg Spine · December 1, 2023 OBJECTIVE: The authors of this study sought to evaluate the predictive role of global sagittal alignment and upper instrumented vertebra (UIV) level in symptomatic proximal junctional kyphosis (PJK) among patients with adult spinal deformity (ASD). METHODS ... Full text Open Access Link to item Cite

“Selection, planning and execution of minimally invasive surgery in adult spinal deformity correction”

Journal Article Seminars in Spine Surgery · December 1, 2023 Minimally invasive surgery (MIS) for correction of adult spinal deformity was developed to address the high rate of medical and surgical complications rate in open surgical treatment of increasingly aging and frail patient population. In the past decade, M ... Full text Open Access Cite

Evolving concepts in pelvic fixation in adult spinal deformity surgery

Journal Article Seminars in Spine Surgery · December 1, 2023 Long-segment adult spinal deformity (ASD) constructs carry a high risk of mechanical complications. Pelvic fixation was introduced to improve distal construct mechanics and has since become the standard for long constructs spanning the lumbosacral junction ... Full text Open Access Cite

Economic burden of nonoperative treatment of adult spinal deformity.

Journal Article J Neurosurg Spine · December 1, 2023 OBJECTIVE: The purpose of this study was to investigate the cost utility of nonoperative treatment for adult spinal deformity (ASD). METHODS: Nonoperatively and operatively treated patients who met database criteria for ASD and in whom complete radiographi ... Full text Open Access Link to item Cite

The Impact of Isolated Preoperative Cannabis Use on Outcomes Following Cervical Spinal Fusion: A Propensity Score-Matched Analysis.

Journal Article Iowa Orthop J · December 2023 BACKGROUND: Cannabis is the most commonly used recreational drug in the USA. Studies evaluating cannabis use and its impact on outcomes following cervical spinal fusion (CF) are limited. This study sought to assess the impact of isolated (exclusive) cannab ... Link to item Cite

Achievement and Maintenance of Optimal Alignment After Adult Spinal Deformity Corrective Surgery: A 5-Year Outcome Analysis.

Journal Article World Neurosurg · December 2023 OBJECTIVE: We sought to assess factors contributing to optimal radiographic outcomes. METHODS: Operative adult spinal deformity (ASD) patients with baseline and 5-year (5Y) data were included. Optimal alignment (O) was defined as improving in at least 1 Sc ... Full text Link to item Cite

Trends in usage of navigation and robotic assistance in elective spine surgeries: a study of 105,212 cases from 2007 to 2015.

Journal Article J Robot Surg · December 2023 OBJECTIVE: Identify trends of navigation and robotic-assisted elective spine surgeries. METHODS: Elective spine surgery patients between 2007 and 2015 in the Nationwide Inpatient Sample (NIS) were isolated by ICD-9 codes for Navigation [Nav] or Robotic [Ro ... Full text Link to item Cite

Patient-reported outcomes measures in adult spinal deformity

Journal Article Seminars in Spine Surgery · December 1, 2023 The purpose of this paper is to discuss development of patient-reported outcomes measures (PROMs) and attributes of PROMs used in adult spinal deformity (ASD) practices. Commonly used PROMs in ASD can be dived into general measures of health (Short Form-36 ... Full text Cite

Alterations in Magnitude and Shape of Thoracic Kyphosis Following Surgical Correction for Adult Spinal Deformity.

Journal Article Global Spine J · November 30, 2023 STUDY DESIGN: Retrospective review of prospective multicenter data. OBJECTIVES: This study aimed to investigate the shape of TK before and after fusion in ASD patients treated with long fusion. METHODS: ASD patients undergoing posterior spinal fusions incl ... Full text Open Access Link to item Cite

The Benefit of Addressing Malalignment in Revision Surgery for Proximal Junctional Kyphosis Following ASD Surgery.

Journal Article Spine (Phila Pa 1976) · November 15, 2023 STUDY DESIGN: Retrospective cohort study. OBJECTIVE: Understand the benefit of addressing malalignment in revision surgery for proximal junctional kyphosis (PJK). SUMMARY OF BACKGROUND DATA: PJK is a common cause of revision surgery for adult spinal deform ... Full text Open Access Link to item Cite

Adult Cervical Deformity Patients Have Higher Baseline Frailty, Disability, and Comorbidities Compared With Complex Adult Thoracolumbar Deformity Patients: A Comparative Cohort Study of 616 Patients.

Journal Article Global Spine J · November 10, 2023 STUDY DESIGN: Multicenter comparative cohort. OBJECTIVE: Studies have shown markedly higher rates of complications and all-cause mortality following surgery for adult cervical deformity (ACD) compared with adult thoracolumbar deformity (ATLD), though the r ... Full text Open Access Link to item Cite

When not to Operate in Spinal Deformity: Identifying Subsets of Patients With Simultaneous Clinical Deterioration, Major Complications, and Reoperation.

Journal Article Spine (Phila Pa 1976) · November 1, 2023 STUDY DESIGN: Retrospective review of a prospectively enrolled adult spinal deformity (ASD) database. OBJECTIVE: To investigate what patient factors elevate the risk of sub-optimal outcomes after deformity correction. BACKGROUND: Currently, it is unknown w ... Full text Open Access Link to item Cite

Are we improving in the optimization of surgery for high-risk adult cervical spine deformity patients over time?

Journal Article J Neurosurg Spine · November 1, 2023 OBJECTIVE: The aim of this study was to investigate whether surgery for high-risk patients is being optimized over time and if poor outcomes are being minimized. METHODS: Patients who underwent surgery for cervical deformity (CD) and were ≥ 18 years with b ... Full text Open Access Link to item Cite

Should realignment goals vary based on patient frailty status in adult spinal deformity?

Journal Article J Neurosurg Spine · November 1, 2023 OBJECTIVE: The objective of this study was to adjust the sagittal age-adjusted score (SAAS) to accommodate frailty in alignment considerations and thereby increase the predictability of clinical outcomes and junctional failure. METHODS: Surgical adult spin ... Full text Link to item Cite

Predicting Mechanical Failure Following Cervical Deformity Surgery: A Composite Score Integrating Age-Adjusted Cervical Alignment Targets.

Journal Article Global Spine J · October 2023 STUDY DESIGN: Retrospective cohort study. OBJECTIVES: Investigate a composite score to evaluate the relationship between alignment proportionality and risk of distal junctional kyphosis (DJK). METHODS: 84 patients with minimum 1 year follow-up were include ... Full text Open Access Link to item Cite

Impact of Frailty on the Development of Proximal Junctional Failure: Does Frailty Supersede Achieving Optimal Realignment?

Journal Article Spine (Phila Pa 1976) · October 1, 2023 BACKGROUND: Patients undergoing surgery for adult spinal deformity (ASD) are often elderly, frail, and at elevated risk of adverse events perioperatively, with proximal junctional failure (PJF) occurring relatively frequently. Currently, the specific role ... Full text Link to item Cite

Height Gain Following Correction of Adult Spinal Deformity.

Journal Article J Bone Joint Surg Am · September 20, 2023 BACKGROUND: Height gain following a surgical procedure for patients with adult spinal deformity (ASD) is incompletely understood, and it is unknown if height gain correlates with patient-reported outcome measures (PROMs). METHODS: This was a retrospective ... Full text Open Access Link to item Cite

The ISSG-AO Complication Intervention Score, but Not Major/Minor Designation, is Correlated With Length of Stay Following Adult Spinal Deformity Surgery.

Journal Article Global Spine J · September 19, 2023 STUDY DESIGN: Retrospective review. OBJECTIVES: The International Spine Study Group-AO (ISSG-AO) Adult Spinal Deformity (ASD) Complication Classification System was developed to improve classification, reporting, and study of complications among patients u ... Full text Open Access Link to item Cite

Patterns of Lumbar Spine Malalignment Leading to Revision Surgery for Proximal Junctional Kyphosis: A Cluster Analysis of Over- Versus Under-Correction.

Journal Article Global Spine J · September 2023 STUDY DESIGN: Retrospective cohort study. OBJECTIVE: Investigate the patterns of fused lumbar alignment in patients requiring revision surgery for proximal junctional kyphosis (PJK). METHODS: Fifty patients (67.8 yo, 76% female) with existing thoraco-lumba ... Full text Open Access Link to item Cite

Calibration of a comprehensive predictive model for the development of proximal junctional kyphosis and failure in adult spinal deformity patients with consideration of contemporary goals and techniques.

Journal Article J Neurosurg Spine · September 1, 2023 OBJECTIVE: The objective of this study was to calibrate an updated predictive model incorporating novel clinical, radiographic, and prophylactic measures to assess the risk of proximal junctional kyphosis (PJK) and failure (PJF). METHODS: Operative patient ... Full text Open Access Link to item Cite

Use of multiple rods and proximal junctional kyphosis in adult spinal deformity surgery.

Journal Article J Neurosurg Spine · September 1, 2023 OBJECTIVE: Multiple rods are utilized in adult spinal deformity (ASD) surgery to increase construct stiffness. However, the impact of multiple rods on proximal junctional kyphosis (PJK) is not well established. This study aimed to investigate the impact of ... Full text Open Access Link to item Cite

Outcomes of Surgical Treatment for Patients With Mild Scoliosis and Age-Appropriate Sagittal Alignment With Minimum 2-Year Follow-up.

Journal Article Neurospine · September 2023 OBJECTIVE: The goal of this study was to determine if patients with mild scoliosis and age-appropriate sagittal alignment have favorable outcomes following surgical correction. METHODS: Retrospective review of a prospective, multicenter adult spinal deform ... Full text Link to item Cite

Does the presence of cervical deformity in patients with baseline mild myelopathy increase operative urgency in adult cervical spinal surgery? A retrospective analysis.

Journal Article Neurosurg Focus · September 2023 OBJECTIVE: The objective of this study was to assess whether delaying surgical management of cervical deformity (CD) in patients with concomitant mild myelopathy increases the risk of suboptimal outcomes. METHODS: Patients aged ≥ 18 years who had a baselin ... Full text Link to item Cite

Are We Focused on the Wrong Early Postoperative Quality Metrics? Optimal Realignment Outweighs Perioperative Risk in Adult Spinal Deformity Surgery.

Journal Article J Clin Med · August 26, 2023 BACKGROUND: While reimbursement is centered on 90-day outcomes, many patients may still achieve optimal, long-term outcomes following adult spinal deformity (ASD) surgery despite transient short-term complications. OBJECTIVE: Compare long-term clinical suc ... Full text Open Access Link to item Cite

Identifying Subsets of Patients With Adult Spinal Deformity Who Maintained a Positive Response to Nonoperative Management.

Journal Article Neurosurgery · August 1, 2023 BACKGROUND: Adult spinal deformity (ASD) represents a major cause of disability in the elderly population in the United States. Surgical intervention has been shown to reduce disability and pain in properly indicated patients. However, there is a small sub ... Full text Open Access Link to item Cite

Quantifying the Contribution of Lower Limb Compensation to Upright Posture: What Happens If Adult Spinal Deformity Patients Do Not Compensate?

Journal Article Spine (Phila Pa 1976) · August 1, 2023 STUDY DESIGN: This is a multicenter, prospective cohort study. OBJECTIVE: This study tests the hypothesis that the elimination of lower limb compensation in patients with adult spinal deformity (ASD) will significantly increase the magnitude of sagittal ma ... Full text Open Access Link to item Cite

Incremental benefits of circumferential minimally invasive surgery for increasingly frail patients with adult spinal deformity.

Journal Article J Neurosurg Spine · August 1, 2023 OBJECTIVE: Circumferential minimally invasive surgery (cMIS) may provide incremental benefits compared with open surgery for patients with increasing frailty status by decreasing peri- and postoperative complications. METHODS: Operative patients with adult ... Full text Open Access Link to item Cite

Patient and procedural risk factors for decline in lower-extremity motor scores following adult spinal deformity surgery.

Journal Article J Neurosurg Spine · August 1, 2023 OBJECTIVE: The purpose of this study was to discern factors that differentiate patients who experience postoperative lower-extremity motor function decline in the early postoperative period. METHODS: Adult spinal deformity (ASD) patients who were enrolled ... Full text Open Access Link to item Cite

Concurrent Presence of Thoracolumbar Scoliosis and Chiari Malformation: Is Operative Risk Magnified?

Journal Article Asian Spine J · August 2023 STUDY DESIGN: Retrospective review of Kids' Inpatient Database (KID). PURPOSE: Identify the risks and complications associated with surgery in adolescents diagnosed with Chiari and scoliosis. OVERVIEW OF LITERATURE: Scoliosis is frequently associated with ... Full text Link to item Cite

Long-term Morbidity in Patients After Surgical Correction of Adult Spinal Deformity: Results From a Cohort With Minimum 5-year Follow-up.

Journal Article Spine (Phila Pa 1976) · August 1, 2023 STUDY DESIGN: Retrospective. OBJECTIVE: The objective of this study is to describe the rate of postoperative morbidity before and after two-year (2Y) follow-up for patients undergoing surgical correction of adult spinal deformity (ASD). SUMMARY OF BACKGROU ... Full text Link to item Cite

One-year Postoperative Radiographic and Patient-reported Outcomes Following Cervical Deformity Correction Are Not Affected by a Short-term Unplanned Return to the OR.

Journal Article Spine (Phila Pa 1976) · July 15, 2023 STUDY DESIGN: Retrospective analysis of a prospectively collected multicenter database. OBJECTIVE: The objective of this study was to assess the radiographic and health-related quality of life (HRQoL) impact of a short-term (<1 y) return to the operating r ... Full text Open Access Link to item Cite

Spinopelvic sagittal compensation in adult cervical deformity.

Journal Article J Neurosurg Spine · July 1, 2023 OBJECTIVE: The objective of this study was to evaluate spinopelvic sagittal alignment and spinal compensatory changes in adult cervical kyphotic deformity. METHODS: A database composed of 13 US spine centers was retrospectively reviewed for adult patients ... Full text Open Access Link to item Cite

Natural history of adult spinal deformity: how do patients with suboptimal surgical outcomes fare relative to nonoperative counterparts?

Journal Article J Neurosurg Spine · July 1, 2023 OBJECTIVE: Management of adult spinal deformity (ASD) has increasingly favored operative intervention; however, the incidence of complications and reoperations is high, and patients may fail to achieve idealized postsurgical results. This study compared he ... Full text Link to item Cite

Surgical costs in adult cervical Deformity: Do higher cost surgeries lead to better Outcomes?

Journal Article J Clin Neurosci · July 2023 BACKGROUND: As our focus on delivering cost effective healthcare increases, interventions like cervical deformity surgery, which are associated with high resource utilization, have received greater scrutiny. The purpose of this study was to assess relation ... Full text Link to item Cite

Should Global Realignment Be Tailored to Frailty Status for Patients Undergoing Surgical Intervention for Adult Spinal Deformity?

Journal Article Spine (Phila Pa 1976) · July 1, 2023 STUDY DESIGN: Retrospective cohort study. OBJECTIVE: Assess whether modifying spinal alignment goals to accommodate frailty considerations will decrease mechanical complications and maximize clinical outcomes. SUMMARY OF BACKGROUND DATA: The Global Alignme ... Full text Link to item Cite

Racial Disparities in Perioperative Morbidity Following Oncological Spine Surgery.

Journal Article Global Spine J · June 2023 STUDY DESIGN: Retrospective cohort study. OBJECTIVE: To assess the impact of race on complications following spinal tumor surgery. METHODS: Adults with cancer who underwent spine tumor surgery were identified in the American College of Surgeons National Su ... Full text Link to item Cite

The Impact of Global Spinal Alignment on Standing Spinopelvic Alignment Change After Total Hip Arthroplasty.

Journal Article Global Spine J · June 2023 STUDY DESIGN: Retrospective cohort study. OBJECTIVES: The interactions between hip osteoarthritis (OA) and spinal malalignment are poorly understood. The purpose of this study was to assess the influence of total hip arthroplasty (THA) on standing spinopel ... Full text Link to item Cite

Cervicothoracic Versus Proximal Thoracic Lower Instrumented Vertebra Have Comparable Radiographic and Clinical Outcomes in Adult Cervical Deformity.

Journal Article Global Spine J · May 2023 STUDY DESIGN: Comparative cohort study. OBJECTIVE: Factors that influence the lower instrumented vertebra (LIV) selection in adult cervical deformity (ACD) are less reported, and outcomes in the cervicothoracic junction (CTJ) and proximal thoracic (PT) spi ... Full text Open Access Link to item Cite

Pelvic Nonresponse Following Treatment of Adult Spinal Deformity: Influence of Realignment Strategies on Occurrence.

Journal Article Spine (Phila Pa 1976) · May 1, 2023 PURPOSE: Despite adequate correction, the pelvis may fail to readjust, deemed pelvic nonresponse (PNR). To assess alignment outcomes [PNR, proximal junctional kyphosis (PJK), postoperative cervical deformity (CD)] following adult spinal deformity (ASD) sur ... Full text Open Access Link to item Cite

Changes in health-related quality of life measures associated with degree of proximal junctional kyphosis.

Journal Article Spine Deform · May 2023 PURPOSE: To explore the changes in health-related quality of life parameters observed in patients experiencing varying degrees of proximal junctional kyphosis following corrective adult spinal deformity fusions. METHODS: Inclusion: adult spinal deformity p ... Full text Open Access Link to item Cite

Spinal Deformity Complexity Checklist for Minimally Invasive Surgery: Expert Consensus from the Minimally Invasive International Spine Study Group.

Journal Article World Neurosurg · May 2023 BACKGROUND: We developed a spinal deformity complexity checklist (SDCC) to assess the difficulty in performing a circumferential minimally invasive surgery (MIS) for adult spinal deformity. METHODS: A modified Delphi method of panel experts was used to con ... Full text Link to item Cite

Can unsupervised cluster analysis identify patterns of complex adult spinal deformity with distinct perioperative outcomes?

Journal Article J Neurosurg Spine · May 1, 2023 OBJECTIVE: The objective of this study was to use an unsupervised cluster approach to identify patterns of operative adult spinal deformity (ASD) and compare the perioperative outcomes of these groups. METHODS: A multicenter data set included patients with ... Full text Open Access Link to item Cite

Distal junctional kyphosis in adult cervical deformity patients: where does it occur?

Journal Article Eur Spine J · May 2023 PURPOSE: To evaluate the impact of the lowest instrumented vertebra (LIV) on Distal Junctional kyphosis (DJK) incidence in adult cervical deformity (ACD) surgery. METHODS: Prospectively collected data from ACD patients undergoing posterior or anterior-post ... Full text Open Access Link to item Cite

The Effects of Global Alignment and Proportionality Scores on Postoperative Outcomes After Adult Spinal Deformity Correction.

Journal Article Oper Neurosurg (Hagerstown) · May 1, 2023 BACKGROUND: Recent studies have suggested achieving global alignment and proportionality (GAP) alignment may influence mechanical complications after adult spinal deformity (ASD) surgery. OBJECTIVE: To investigate the association between the GAP score and ... Full text Link to item Cite

External Validation of the National Surgical Quality Improvement Program Calculator Utilizing a Single Institutional Experience for Adult Spinal Deformity Corrective Surgery.

Journal Article Int J Spine Surg · April 2023 BACKGROUND: Identify the external applicability of the American College of Surgeons' National Surgical Quality Improvement Program (NSQIP) risk calculator in the setting of adult spinal deformity (ASD) and subsets of patients based on deformity and frailty ... Full text Link to item Cite

Alternatives to DEXA for the assessment of bone density: a systematic review of the literature and future recommendations.

Journal Article J Neurosurg Spine · April 1, 2023 OBJECTIVE: Osteoporosis has significant implications in spine fusion surgery, for which reduced spinal bone mineral density (BMD) can result in complications and poorer outcomes. Currently, dual-energy x-ray absorptiometry (DEXA) is the gold standard for r ... Full text Link to item Cite

Metabolic Bone Disorders Are Predictors for 2-year Adverse Outcomes in Patients Undergoing 2-3 Level Anterior Cervical Discectomy and Fusion for Cervical Radiculopathy or Myelopathy.

Journal Article Clin Spine Surg · April 1, 2023 STUDY DESIGN: Retrospective cohort study utilizing the New York statewide planning and research cooperative system. STUDY OBJECTIVE: To investigate postoperative complications of patients with metabolic bone disorders (MBDs) who undergo 2-3 levels of anter ... Full text Link to item Cite

A Hierarchical Approach to Realignment Strategies in Adult Cervical Deformity Surgery.

Journal Article Clin Spine Surg · April 1, 2023 STUDY DESIGN: Retrospective cohort study. OBJECTIVE: Construct an individualized cervical realignment strategy based on patient parameters at the presentation that results in superior 2-year health-related quality of life metrics and decreased rates of jun ... Full text Link to item Cite

The Approach to Pseudarthrosis After Adult Spinal Deformity Surgery: Is a Multiple-Rod Construct Necessary?

Journal Article Global Spine J · April 2023 STUDY DESIGN: Retrospective study. OBJECTIVES: Our goal was to evaluate the rate of rod fracture and persistent pseudarthrosis in cohorts of patients treated with a dual rod or multiple-rod construct in revision surgery for pseudarthrosis. METHODS: A dual ... Full text Link to item Cite

Perioperative Nutritional Supplementation Decreases Wound Healing Complications Following Elective Lumbar Spine Surgery: A Randomized Controlled Trial.

Journal Article Spine (Phila Pa 1976) · March 15, 2023 BACKGROUND: The prevalence of malnutrition in patients undergoing lumbar spine surgery ranges from 5% to 50% and is associated with higher rates of surgical site infections, medical complications, longer lengths of stay, and mortality. PURPOSE: To determin ... Full text Link to item Cite

Diagnosis-Related Group-Based Payments for Adult Spine Deformity Surgery Significantly Vary across Centers: Results from a Multicenter Prospective Cohort Study.

Journal Article World Neurosurg · March 2023 BACKGROUND: To investigate the variation in total episode-of-care (EOC) payment and quality-adjusted life-year (QALY) gain for complex adult spine deformity surgeries in the United States, adjusting for case type and surgeon preferences. METHODS: Patients ... Full text Open Access Link to item Cite

Author Correction: Sagittal age-adjusted score (SAAS) for adult spinal deformity (ASD) more effectively predicts surgical outcomes and proximal junctional kyphosis than previous classifications.

Journal Article Spine Deform · March 2023 Full text Open Access Link to item Cite

Can We Predict Imbalance in Patients? Analysis of the CDC National Health and Nutrition Examination Survey.

Journal Article J Clin Med · March 1, 2023 Understanding global body balance can optimize the postoperative course for patients undergoing spinal or lower limb surgical realignment. This observational cohort study aimed to characterize patients with reported imbalance and identify predictors. The C ... Full text Link to item Cite

Understanding Perioperative Nutrition in Patients Undergoing Spine Surgery.

Journal Article Bull Hosp Jt Dis (2013) · March 2023 The consequences of malnutrition in spine surgery have been studied to a lesser degree compared to other orthopedic subspecialties. However, there is growing interest in understanding the effects of preoperative malnutrition on spine surgery outcomes. Lite ... Link to item Cite

The Impact of Asymptomatic Human Immunodeficiency Virus-Positive Disease Status on Inpatient Complications Following Spine Surgery: A Propensity Score-Matched Analysis.

Journal Article J Clin Med · February 12, 2023 In the United States, nearly 1.2 million people > 12 years old have human immunodeficiency virus (HIV), which is associated with postoperative complications following orthopedic procedures. Little is known about how asymptomatic HIV (AHIV) patients fare po ... Full text Link to item Cite

The Impact of Prematurity at Birth on Short-Term Postoperative Outcomes Following Posterior Spinal Fusion for Adolescent Idiopathic Scoliosis.

Journal Article J Clin Med · February 3, 2023 Prematurity is associated with surgical complications. This study sought to determine the risk of prematurity on 30-day complications, reoperations, and readmissions following ≥7-level PSF for AIS which has not been established. Utilizing the American Coll ... Full text Link to item Cite

Improvements in Outcomes and Cost After Adult Spinal Deformity Corrective Surgery Between 2008 and 2019.

Journal Article Spine · February 2023 Study designA retrospective cohort study.ObjectiveTo assess whether patient outcomes and cost-effectiveness of adult spinal deformity (ASD) surgery have improved over the past decade.BackgroundSurgery for ASD is an effective inte ... Full text Open Access Cite

Failure to Normalize Risk Profile of Spine Fusion Patients With Coronary Artery Disease Previously Treated With Percutaneous Stent Revascularization.

Journal Article Int J Spine Surg · February 2023 BACKGROUND: The impact of an initially less invasive cardiac intervention on outcomes of future surgical spine procedures has been understudied; therefore, we sought to investigate the effect of coronary stents on postoperative outcomes in an elective spin ... Full text Link to item Cite

Predictors of Complication Severity Following Adult Spinal Deformity Surgery: Smoking Rate, Diabetes, and Osteotomy Increase Risk of Severe Adverse Events.

Journal Article Int J Spine Surg · February 2023 BACKGROUND: Given the physical and economic burden of complications in spine surgery, reducing the prevalence of perioperative adverse events is a primary concern of both patients and health care professionals. This study aims to identify specific perioper ... Full text Link to item Cite

Cervical Paraspinal Muscle Fatty Infiltration is Directly Related to Extension Reserve in Patients With Cervical Spine Pathology.

Journal Article Clin Spine Surg · February 1, 2023 STUDY DESIGN/SETTING: Retrospective review of a prospectively collected database. OBJECTIVE: The objective of this study was to determine the relationship between paracervical muscle area, density, and fat infiltration and cervical alignment among patients ... Full text Link to item Cite

Crossing the Bridge From Degeneration to Deformity: When Does Sagittal Correction Impact Outcomes in Adult Spinal Deformity Surgery?

Journal Article Spine (Phila Pa 1976) · February 1, 2023 BACKGROUND: Patients with less severe adult spinal deformity (ASD) undergo surgical correction and often achieve good clinical outcomes. However, it is not well understood how much clinical improvement is due to sagittal correction rather than treatment of ... Full text Link to item Cite

Establishment of an Individualized Distal Junctional Kyphosis Risk Index following the Surgical Treatment of Adult Cervical Deformities.

Journal Article Spine (Phila Pa 1976) · January 1, 2023 STUDY DESIGN: A retrospective review of a multicenter comprehensive cervical deformity (CD) database. OBJECTIVE: To develop a novel risk index specific to each patient to aid in patient counseling and surgical planning to minimize postop distal junctional ... Full text Open Access Link to item Cite

Patient satisfaction after multiple revision surgeries for adult spinal deformity.

Journal Article J Neurosurg Spine · January 1, 2023 OBJECTIVE: Revision surgery is often necessary for adult spinal deformity (ASD) patients. Satisfaction with management is an important component of health-related quality of life. The authors hypothesized that patients who underwent multiple revision surge ... Full text Open Access Link to item Cite

Return to work after adult spinal deformity surgery.

Journal Article Spine Deform · January 2023 PURPOSE: To determine the proportions of patients returning to work at various points after adult spinal deformity (ASD) surgery and the associations between surgical invasiveness and time to return to work. METHODS: Using a multicenter database of patient ... Full text Open Access Link to item Cite

Predictors of reoperation for spinal disorders in Chiari malformation patients with prior surgical decompression.

Journal Article J Craniovertebr Junction Spine · 2023 BACKGROUND: Chiari malformation (CM) is a cluster of related developmental anomalies of the posterior fossa ranging from asymptomatic to fatal. Cranial and spinal decompression can help alleviate symptoms of increased cerebrospinal fluid pressure and corre ... Full text Link to item Cite

The psychological burden of disease among patients undergoing cervical spine surgery: Are we underestimating our patients' inherent disability?

Journal Article Neurochirurgie · January 2023 BACKGROUND: Studies have utilized psychological questionnaires to identify the psychological distress among certain surgical populations. RESEARCH QUESTION: Is there an additional psychological burden among patients undergoing surgical treatment for their ... Full text Link to item Cite

The Impact of Osteoporosis on 2-Year Outcomes in Patients Undergoing Long Cervical Fusion.

Journal Article J Am Acad Orthop Surg · January 1, 2023 INTRODUCTION: Osteoporosis affects nearly 200 million individuals worldwide. Given this notable disease burden, there have been increased efforts to investigate complications in patients with osteoporosis undergoing cervical fusion (CF). However, there are ... Full text Link to item Cite

Trends in Outcomes of a Prospective Consecutively Enrolled Single-Center Adult Cervical Deformity Series.

Journal Article Spine (Phila Pa 1976) · December 15, 2022 STUDY DESIGN: Retrospective cohort. OBJECTIVE: The aim was to describe the two-year outcomes for patients undergoing surgical correction of cervical deformity (CD). BACKGROUND: Adult CD has been shown to compromise health-related quality of life. While adv ... Full text Link to item Cite

Operative treatment outcomes for adult cervical deformity: a prospective multicenter assessment with mean 3-year follow-up.

Journal Article J Neurosurg Spine · December 1, 2022 OBJECTIVE: Adult cervical deformity (ACD) has high complication rates due to surgical complexity and patient frailty. Very few studies have focused on longer-term outcomes of operative ACD treatment. The objective of this study was to assess minimum 2-year ... Full text Open Access Link to item Cite

Development of Risk Stratification Predictive Models for Cervical Deformity Surgery.

Journal Article Neurosurgery · December 1, 2022 BACKGROUND: As corrective surgery for cervical deformity (CD) increases, so does the rate of complications and reoperations. To minimize suboptimal postoperative outcomes, it is important to develop a tool that allows for proper preoperative risk stratific ... Full text Open Access Link to item Cite

Evolution of Adult Cervical Deformity Surgery Clinical and Radiographic Outcomes Based on a Multicenter Prospective Study: Are Behaviors and Outcomes Changing With Experience?

Journal Article Spine (Phila Pa 1976) · November 15, 2022 STUDY DESIGN: Retrospective cohort study. OBJECTIVE: Assess changes in outcomes and surgical approaches for adult cervical deformity surgery over time. SUMMARY OF BACKGROUND DATA: As the population ages and the prevalence of cervical deformity increases, c ... Full text Open Access Link to item Cite

Three-Column Osteotomy in Adult Spinal Deformity: An Analysis of Temporal Trends in Usage and Outcomes.

Journal Article J Bone Joint Surg Am · November 2, 2022 BACKGROUND: Three-column osteotomies (3COs), usually in the form of pedicle subtraction or vertebral column resection, have become common in adult spinal deformity surgery. Although a powerful tool for deformity correction, 3COs can increase the risks of p ... Full text Open Access Link to item Cite

Highest Achievable Outcomes for Patients Undergoing Cervical Deformity Corrective Surgery by Frailty.

Journal Article Neurosurgery · November 1, 2022 BACKGROUND: Frailty is influential in determining operative outcomes, including complications, in patients with cervical deformity (CD). OBJECTIVE: To assess whether frailty status limits the highest achievable outcomes of patients with CD. METHODS: Adult ... Full text Open Access Link to item Cite

Bariatric Surgery Lowers Rates of Spinal Symptoms and Spinal Surgery in a Morbidly Obese Population.

Journal Article Clin Spine Surg · November 1, 2022 STUDY DESIGN: Retrospective analysis of New York State Inpatient Database years 2004-2013. OBJECTIVE: Assess rates of spinal diagnoses and procedures before and after bariatric surgery (BS). SUMMARY OF BACKGROUND DATA: BS for morbid obesity helps address c ... Full text Link to item Cite

Assessing the Effects of Prior History of Vertebral Osteomyelitis on Peri-Operative Factors and Post-Operative Recovery in Adult Spinal Deformity Patients.

Journal Article J Clin Med · November 1, 2022 Vertebral osteomyelitis (VOM), which includes the clinical entities of spinal osteomyelitis, spondylodiscitis, or pyogenic spondylitis, describes a complex inflammatory reaction within the vertebral column in the setting of microbial infection [...]. ... Full text Link to item Cite

Assessing the influence of modifiable patient-related factors on complication rates after adult spinal deformity surgery.

Journal Article Bone Joint J · November 2022 AIMS: Postoperative complication rates remain relatively high after adult spinal deformity (ASD) surgery. The extent to which modifiable patient-related factors influence complication rates in patients with ASD has not been effectively evaluated. The aim o ... Full text Link to item Cite

The Additional Economic Burden of Frailty in Adult Cervical Deformity Patients Undergoing Surgical Intervention.

Journal Article Spine (Phila Pa 1976) · October 15, 2022 SUMMARY OF BACKGROUND DATA: The influence of frailty on economic burden following corrective surgery for the adult cervical deformity (CD) is understudied and may provide valuable insights for preoperative planning. OBJECTIVE: To assess the influence of ba ... Full text Open Access Link to item Cite

Performance of the Modified Adult Spinal Deformity Frailty Index in Preoperative Risk Assessment.

Journal Article Spine (Phila Pa 1976) · October 15, 2022 STUDY DESIGN: Retrospective single-center, consecutively enrolled database of adult spinal deformity (ASD) patients. OBJECTIVE: The aim of this study was to assess the performance of the mASD-FI in predicting clinical and patient-reported outcomes after AS ... Full text Link to item Cite

Surgical Planning for Adult Spinal Deformity: Anticipated Sagittal Alignment Corrections According to the Surgical Level.

Journal Article Global Spine J · October 2022 STUDY DESIGN: Retrospective cohort study. OBJECTIVES: Establish simultaneous focal and regional corrective guidelines accounting for reciprocal global and pelvic compensation. METHODS: 433 ASD patients (mean age 62.9 yrs, 81.3% F) who underwent corrective ... Full text Open Access Link to item Cite

Proximal and distal reciprocal changes following cervical deformity malalignment correction.

Journal Article J Neurosurg Spine · October 1, 2022 OBJECTIVE: Hyperextension of C0-2 is a debilitating compensatory mechanism used to maintain horizontal gaze, analogous to high pelvic tilt in the lumbopelvic complex to maintain an upright posture. This study aims to investigate the impact of cervical defo ... Full text Open Access Link to item Cite

Outcomes of operative treatment for adult spinal deformity: a prospective multicenter assessment with mean 4-year follow-up.

Journal Article J Neurosurg Spine · October 1, 2022 OBJECTIVE: The current literature has primarily focused on the 2-year outcomes of operative adult spinal deformity (ASD) treatment. Longer term durability is important given the invasiveness, complications, and costs of these procedures. The aim of this st ... Full text Open Access Link to item Cite

The 5-factor modified frailty index (mFI-5) is predictive of 30-day postoperative complications and readmission in patients with adult spinal deformity (ASD).

Journal Article J Clin Neurosci · October 2022 BACKGROUND: There is limited research regarding the association between the mFI-5 and postoperative complications among adult spinal deformity (ASD) patients. METHODS: Using the National Surgical Quality Improvement Project (NSQIP) database, patients with ... Full text Link to item Cite

Do the newly proposed realignment targets for C2 and T1 slope bridge the gap between radiographic and clinical success in corrective surgery for adult cervical deformity?

Journal Article J Neurosurg Spine · September 1, 2022 OBJECTIVE: Surgical correction of cervical deformity (CD) has been associated with superior alignment and functional outcomes. It has not yet been determined whether baseline or postoperative T1 slope (T1S) and C2 slope (C2S) correlate with health-related ... Full text Link to item Cite

Defining age-adjusted spinopelvic alignment thresholds: should we integrate BMI?

Journal Article Spine Deform · September 2022 PURPOSE: To develop age- and BMI-adjusted alignment targets to improve patient-specific management and operative treatment outcomes. METHODS: Retrospective review of a single-center stereographic database. ASD patients receiving operative or non-operative ... Full text Link to item Cite

Role of obesity in less radiographic correction and worse health-related quality-of-life outcomes following minimally invasive deformity surgery.

Journal Article J Neurosurg Spine · August 1, 2022 OBJECTIVE: Minimally invasive surgery (MIS) for adult spinal deformity (ASD) can offer deformity correction with less tissue manipulation and damage. However, the impact of obesity on clinical outcomes and radiographic correction following MIS for ASD is p ... Full text Open Access Link to item Cite

External Validation of the European Spine Study Group-International Spine Study Group Calculator Utilizing a Single Institutional Experience for Adult Spinal Deformity Corrective Surgery.

Journal Article Int J Spine Surg · July 31, 2022 BACKGROUND: The International Spine Study Group (ISSG) and the European Spine Study Group (ESSG) developed an adult spinal deformity (ASD) risk calculator based on one of the most granular, prospective ASD databases. The calculator utilizes preoperative ra ... Full text Link to item Cite

An Artificial Neural Network Model for the Prediction of Perioperative Blood Transfusion in Adult Spinal Deformity Surgery.

Journal Article J Clin Med · July 29, 2022 Prediction of blood transfusion after adult spinal deformity (ASD) surgery can identify at-risk patients and potentially reduce its utilization and the complications associated with it. The use of artificial neural networks (ANNs) offers the potential for ... Full text Link to item Cite

Rates of Loosening, Failure, and Revision of Iliac Fixation in Adult Deformity Surgery.

Journal Article Spine (Phila Pa 1976) · July 15, 2022 STUDY DESIGN: Retrospective cohort review of a prospective multicenter database. OBJECTIVE: Identify rates and variations in lumbopelvic fixation failure after adult spinal deformity (ASD) correction. SUMMARY OF BACKGROUND DATA: Traditional iliac (IS) and ... Full text Open Access Link to item Cite

The Clinical Impact of Failing to Achieve Ideal Proportional Realignment in Adult Spinal Deformity Patients.

Journal Article Spine (Phila Pa 1976) · July 15, 2022 SUMMARY OF BACKGROUND DATA: The impact of not achieving ideal realignment in the global alignment and proportion (GAP) score in adult spinal deformity (ASD) correction on clinical outcomes is understudied at present. OBJECTIVE: To identify the clinical imp ... Full text Link to item Cite

Neurological Complications and Recovery Rates of Patients With Adult Cervical Deformity Surgeries.

Journal Article Global Spine J · July 2022 STUDY DESIGN: Retrospective cohort study. OBJECTIVE: This study aims to report the incidence, risk factors, and recovery rate of neurological complications (NC) in patients with adult cervical deformity (ACD) who underwent corrective surgery. METHODS: ACD ... Full text Open Access Link to item Cite

Alignment Targets, Curve Proportion and Mechanical Loading: Preliminary Analysis of an Ideal Shape Toward Reducing Proximal Junctional Kyphosis.

Journal Article Global Spine J · July 2022 STUDY DESIGN: Retrospective cohort study. OBJECTIVE: Investigate risk factors for PJK including theoretical kyphosis, mechanical loading at the UIV and age adjusted offset alignment. METHODS: 373 ASD patients (62.7 yrs ± 9.9; 81%F) with 2-year follow up an ... Full text Open Access Link to item Cite

Is frailty responsive to surgical correction of adult spinal deformity? An investigation of sagittal re-alignment and frailty component drivers of postoperative frailty status.

Journal Article Spine Deform · July 2022 PURPOSE: Frailty has been associated with adverse postoperative outcomes. Recently, a novel frailty index for preoperative risk stratification in patients with adult spinal deformity was developed. Components of the ASD-FI utilize patient comorbidity, clin ... Full text Open Access Link to item Cite

The Impact of Osteoporosis on Adverse Outcomes After Short Fusion for Degenerative Lumbar Disease.

Journal Article J Am Acad Orthop Surg · June 15, 2022 INTRODUCTION: Osteoporosis affects nearly 200 million individuals worldwide. There are little available data regarding outcomes in patients with osteoporosis who undergo short-segment lumbar fusion for degenerative disk disease (DDD). We sought to identify ... Full text Link to item Cite

Predicting development of severe clinically relevant distal junctional kyphosis following adult cervical deformity surgery, with further distinction from mild asymptomatic episodes.

Journal Article J Neurosurg Spine · June 1, 2022 OBJECTIVE: This retrospective cohort study aimed to develop a formal predictive model distinguishing between symptomatic and asymptomatic distal junctional kyphosis (DJK). In this study the authors identified a DJK rate of 32.2%. Predictive models were cre ... Full text Open Access Link to item Cite

Radiographic Characteristics of Cervical Deformity (CD) Using a Discriminant Analysis: The Value of Extension Radiographs.

Journal Article Clin Spine Surg · June 1, 2022 STUDY DESIGN: This was a retrospective review of a prospectively collected database. OBJECTIVE: The aim of this study was to delineate radiographic parameters that distinguish severe cervical spine deformity (CSD). SUMMARY OF BACKGROUND DATA: Our objective ... Full text Open Access Link to item Cite

Complication rate evolution across a 10-year enrollment period of a prospective multicenter database.

Journal Article J Neurosurg Spine · June 1, 2022 OBJECTIVE: Adult spinal deformity is a complex pathology that benefits greatly from surgical treatment. Despite continuous innovation, little is known regarding continuous changes in surgical techniques and the complications rate. The objective of the curr ... Full text Open Access Link to item Cite

Predicting 30-Day Perioperative Outcomes in Adult Spinal Deformity Patients With Baseline Paralysis or Functional Dependence.

Journal Article Int J Spine Surg · June 2022 BACKGROUND: Patients undergoing surgical treatment of adult spinal deformity (ASD) are often preoperatively risk stratified using standardized instruments to assess for perioperative complications. Many ASD instruments account for medical comorbidity and r ... Full text Link to item Cite

The Inherent Value of Preoperative Optimization-Absolute and Incremental Reduction in Components of Metabolic Syndrome Can Enhance Recovery and Minimize Perioperative Burden.

Journal Article Int J Spine Surg · June 2022 BACKGROUND: Metabolic syndrome (MetS) is an amalgamation of medical disorders that ultimately increase patient complications. Factors such as obesity, hypertension, dyslipidemia, and diabetes are associated with this disease complex. OBJECTIVE: To assess t ... Full text Link to item Cite

Improved Surgical Correction Relative to Patient-Specific Ideal Spinopelvic Alignment Reduces Pelvic Nonresponse for Severely Malaligned Adult Spinal Deformity Patients.

Journal Article Int J Spine Surg · June 2022 BACKGROUND: Persistent pelvic compensation following adult spinal deformity (ASD) corrective surgery may impair quality of life and result in persistent pathologic lower extremity compensation. Ideal age-specific alignment targets have been proposed to imp ... Full text Link to item Cite

Cervical Deformity Correction Fails to Achieve Age-Adjusted Spinopelvic Alignment Targets.

Journal Article Int J Spine Surg · June 2022 OBJECTIVE: To assess whether surgical cervical deformity (CD) patients meet spinopelvic age-adjusted alignment targets, reciprocal, and lower limb compensation changes. STUDY DESIGN: Retrospective review. METHODS: CD was defined as C2-C7 lordosis >10°, cer ... Full text Link to item Cite

Critical appraisal of bibliometric study on most influential publications of upper cervical spine instability.

Journal Article J Spine Surg · June 2022 Full text Link to item Cite

The Impact of Isolated Baseline Cannabis Use on Outcomes Following Thoracolumbar Spinal Fusion: A Propensity Score-Matched Analysis.

Journal Article Iowa Orthop J · June 2022 BACKGROUND: There is limited literature evaluating the impact of isolated cannabis use on outcomes for patients following spinal surgery. This study sought to compare 90-day complication, 90-day readmission, as well as 2-year revision rates between baselin ... Link to item Cite

"Reverse roussouly": cervicothoracic curvature ratios define characteristic shapes in adult cervical deformity.

Journal Article Eur Spine J · June 2022 PURPOSE: To investigate normal curvature ratios of the cervicothoracic spine and to establish radiographic thresholds for severe myelopathy and disability, within the context of shape. METHODS: Adult cervical deformity (CD) patients undergoing cervical fus ... Full text Link to item Cite

Radiofrequency ablation for spinal osteoid osteoma: A systematic review of safety and treatment outcomes.

Journal Article Surg Oncol · May 2022 AIM: We sought to systematically assess and summarize the available literature on the clinical outcomes and complications following radiofrequency ablation (RFA) for painful spinal osteoid osteoma (OO). METHODS: PubMed, Scopus, and CENTRAL databases were s ... Full text Link to item Cite

Primary Paraganglioma of the Spine: A Systematic Review of Clinical Features and Surgical Management in Cauda Equina versus Non-Cauda Equina Lesions.

Journal Article World Neurosurg · May 2022 BACKGROUND: Primary spine paragangliomas are rare tumors. Surgical resection plays a role, but aggressive lesions are challenging. We reviewed the literature on primary spine paragangliomas. METHODS: PubMed, Scopus, Web of Science, and Cochrane were search ... Full text Link to item Cite

Health-related quality of life measures in adult spinal deformity: can we replace the SRS-22 with PROMIS?

Journal Article Eur Spine J · May 2022 PURPOSE: To determine the validity and responsiveness of PROMIS metrics versus the SRS-22r questionnaire in adult spinal deformity (ASD). METHODS: Surgical ASD patients undergoing ≥ 4 levels fused with complete baseline PROMIS and SRS-22r data were include ... Full text Link to item Cite

Assessment of Postoperative Outcomes of Spine Fusion Patients With History of Cardiac Disease.

Journal Article J Am Acad Orthop Surg · April 15, 2022 INTRODUCTION: There is paucity on the effect of different cardiac diagnoses on outcomes in elective spine fusion patients. METHODS: Patients undergoing elective spine fusion surgery were isolated in the PearlDiver database. Patients were stratified by havi ... Full text Link to item Cite

When can we expect global sagittal alignment to reach a stable value following cervical deformity surgery?

Journal Article J Neurosurg Spine · April 1, 2022 OBJECTIVE: Cervical deformity (CD) is a complex condition with a clear impact on patient quality of life, which can be improved with surgical treatment. Previous study following thoracolumbar surgery demonstrated a spontaneous and maintained improvement in ... Full text Open Access Link to item Cite

Predictive Analytics for Determining Extended Operative Time in Corrective Adult Spinal Deformity Surgery.

Journal Article Int J Spine Surg · April 2022 BACKGROUND: More sophisticated surgical techniques for correcting adult spinal deformity (ASD) have increased operative times, adding to physiologic stress on patients and increased complication incidence. This study aims to determine factors associated wi ... Full text Open Access Link to item Cite

Commentary: Incidence and Risk Factors of Mechanical Complications After Posterior-Based Osteotomies for Correction of Moderate to Severe Adult Cervical Deformity: 1-Year and 2-Year Follow-up.

Journal Article Neurosurgery · April 1, 2022 Full text Link to item Cite

Comparing and Contrasting the Clinical Utility of Sagittal Spine Alignment Classification Frameworks: Roussouly Versus SRS-Schwab.

Journal Article Spine (Phila Pa 1976) · March 15, 2022 STUDY DESIGN: Retrospective cohort study of a prospectively collected database. OBJECTIVE: To compare clinical utility of two common classification systems for adult spinal deformity (ASD) and determine whether both should be considered in surgical plannin ... Full text Open Access Link to item Cite

Low-Density Pedicle Screw Constructs Are Associated with Lower Incidence of Proximal Junctional Failure in Adult Spinal Deformity Surgery.

Journal Article Spine (Phila Pa 1976) · March 15, 2022 STUDY DESIGN: Retrospective cohort study. OBJECTIVE: Determine whether screws per level and rod material/diameter are associated with incidence of proximal junctional kyphosis (PJF). SUMMARY OF BACKGROUND DATA: PJF is a common and particularly adverse comp ... Full text Open Access Link to item Cite

Assessment of Adult Spinal Deformity Complication Timing and Impact on 2-Year Outcomes Using a Comprehensive Adult Spinal Deformity Classification System.

Journal Article Spine (Phila Pa 1976) · March 15, 2022 STUDY DESIGN: Retrospective review of prospectively collected multicenter registry data. OBJECTIVE: To identify rates and timing of postoperative complications in adult spinal deformity (ASD) patients, the impact of complication type and timing on health r ... Full text Open Access Link to item Cite

Reaching the medicare allowable threshold in adult spinal deformity surgery: multicenter cost analysis comparing actual direct hospital costs versus what the government will pay.

Journal Article Spine Deform · March 2022 STUDY DESIGN: Retrospective multicenter cost analysis. OBJECTIVE: To (1) determine if index episode of care (iEOC) costs of Adult Spinal Deformity (ASD) surgeries are below the Medicare Allowable (MA) threshold, and (2) identify variables that can predict ... Full text Open Access Link to item Cite

Adult Spinal Deformity Surgery Is Associated with Increased Productivity and Decreased Absenteeism From Work and School.

Journal Article Spine (Phila Pa 1976) · February 15, 2022 STUDY DESIGN: Retrospective cohort study. OBJECTIVE: We hypothesized that adult spinal deformity (ASD) surgery would be associated with improved work- and school-related productivity, as well as decreased rates of absenteeism. SUMMARY OF BACKGROUND DATA: A ... Full text Open Access Link to item Cite

Examination of Adult Spinal Deformity Patients Undergoing Surgery with Implanted Spinal Cord Stimulators and Intrathecal Pumps.

Journal Article Spine (Phila Pa 1976) · February 1, 2022 STUDY DESIGN: Retrospective cohort study of a prospectively collected multi-center database of adult spinal deformity (ASD) patients. OBJECTIVE: We hypothesized that patients undergoing ASD surgery with and without previous spinal cord stimulators (SCS)/ i ... Full text Open Access Link to item Cite

Patient outcomes after circumferential minimally invasive surgery compared with those of open correction for adult spinal deformity: initial analysis of prospectively collected data.

Journal Article J Neurosurg Spine · February 1, 2022 OBJECTIVE: Circumferential minimally invasive spine surgery (cMIS) for adult scoliosis has become more advanced and powerful, but direct comparison with traditional open correction using prospectively collected data is limited. The authors performed a retr ... Full text Open Access Link to item Cite

Disseminated Intravascular Coagulation in Pediatric Scoliosis Surgery: A Systematic Review.

Journal Article Int J Spine Surg · February 2022 BACKGROUND: Disseminated intravascular coagulation (DIC) is a rare but serious complication of pediatric scoliosis surgery; sparse current evidence warrants more information on causality and prevention. This systematic review sought to identify incidence o ... Full text Link to item Cite

Case Start Timing of Adult Spinal Deformity Surgeries: Does the Wait Matter?

Journal Article Int J Spine Surg · February 2022 BACKGROUND: Adult spinal deformity (ASD) surgery can entail complex reconstructive procedures. It is unclear whether there is any effect of case start time on outcomes. We sought to evaluate the effects of case start time and day of the week on 90-day comp ... Full text Link to item Cite

Establishing the minimal clinically important difference for the PROMIS Physical domains in cervical deformity patients.

Journal Article J Clin Neurosci · February 2022 INTRODUCTION: Patient Reported Outcome Measurement Information System (PROMIS) instruments have been shown to correlate with established patient outcome metrics. The aim of this retrospective study was to determine the MCID for the PROMIS physical domains ... Full text Link to item Cite

Percutaneous image-guided cryoablation of spinal metastases: A systematic review.

Journal Article J Clin Neurosci · February 2022 Percutaneous cryoablation (PCA) is a minimally invasive technique that has been recently used to treat spinal metastases with a paucity of data currently available in the literature. A systematic review was performed according to the Preferred Reporting It ... Full text Link to item Cite

Clinical Outcomes of Coccygectomy for Coccydynia: A Single Institution Series With Mean 5-Year Follow-Up.

Journal Article Int J Spine Surg · February 2022 BACKGROUND: Prior studies of coccygectomy consist of small patient groups, heterogeneous techniques, and high wound complication rates (up to 22%). This study investigates our institution's experience with coccygectomy using a novel "off-center" wound clos ... Full text Link to item Cite

Surgical Factors and Treatment Severity for Perioperative Complications Predict Hospital Length of Stay in Adult Spinal Deformity Surgery.

Journal Article Spine (Phila Pa 1976) · January 15, 2022 STUDY DESIGN: Retrospective review of prospectively collected multicenter registry data. OBJECTIVE: The aim of this study was to determine whether surgical variables and complications as graded by treatment severity impact postoperative hospital length of ... Full text Open Access Link to item Cite

Characterizing Health-Related Quality of Life by Ambulatory Status in Patients with Spinal Metastases.

Journal Article Spine (Phila Pa 1976) · January 15, 2022 STUDY DESIGN: Retrospective review of prospective longitudinal data. OBJECTIVE: To determine health-related quality of life (HRQL) utilities associated with specific ambulatory states in patients with spinal metastases: independent, ambulatory with assista ... Full text Link to item Cite

Increasing Cost Efficiency in Adult Spinal Deformity Surgery: Identifying Predictors of Lower Total Costs.

Journal Article Spine (Phila Pa 1976) · January 1, 2022 STUDY DESIGN: Retrospective study of a prospective multicenter database. OBJECTIVE: The purpose of this study was to identify predictors of lower total surgery costs at 3 years for adult spinal deformity (ASD) patients. SUMMARY OF BACKGROUND DATA: ASD surg ... Full text Open Access Link to item Cite

Sagittal age-adjusted score (SAAS) for adult spinal deformity (ASD) more effectively predicts surgical outcomes and proximal junctional kyphosis than previous classifications.

Journal Article Spine Deform · January 2022 BACKGROUND: Several methodologies have been proposed to determine ideal ASD sagittal spinopelvic alignment (SRS-Schwab classification) global alignment and proportion (GAP) score, patient age-adjusted alignment). A recent study revealed the ability and lim ... Full text Open Access Link to item Cite

Examination of the Economic Burden of Frailty in Patients With Adult Spinal Deformity Undergoing Surgical Intervention.

Journal Article Neurosurgery · January 1, 2022 BACKGROUND: With increasing interest in cost optimization, costs of adult spinal deformity (ASD) surgery intersections with frailty merit investigation. OBJECTIVE: To investigate costs associated with ASD and frailty. METHODS: Patients with ASD (scoliosis ... Full text Open Access Link to item Cite

Have We Made Temporal Advancements in Optimizing Surgical Outcomes and Recovery for High Risk Spinal Deformity Patients?

Conference NEUROSURGERY · 2022 Cite

Cervical deformity patients with baseline hyperlordosis or hyperkyphosis differ in surgical treatment and radiographic outcomes.

Journal Article J Craniovertebr Junction Spine · 2022 BACKGROUND: Patients with symptomatic cervical deformity (CD) requiring surgical correction often present with hyperkyphosis (HK), although patients with hyperlordotic curves may require surgery as well. Few studies have investigated differences in CD corr ... Full text Open Access Link to item Cite

Do the newly proposed realignment targets bridge the gap between radiographic and clinical success in adult cervical deformity corrective surgery.

Journal Article J Craniovertebr Junction Spine · 2022 HYPOTHESIS: The myelopathy-based cervical deformity (CD) thresholds will associate with patient-reported outcomes and complications. MATERIALS AND METHODS: This study include CD patients (C2-C7 Cobb > 10°, CL > 10°, cervical sagittal vertical axis > 4 cm, ... Full text Link to item Cite

Cervical and spinopelvic parameters can predict patient reported outcomes following cervical deformity surgery.

Journal Article J Craniovertebr Junction Spine · 2022 BACKGROUND: Recent studies have evaluated the correlation of health-related quality of life (HRQL) scores with radiographic parameters. This relationship may provide insight into the connection of patient-reported disability and disease burden caused by ce ... Full text Link to item Cite

The Prevalence of Hip Pathologies in Adolescent Idiopathic Scoliosis.

Journal Article J Orthop · 2022 BACKGROUND: Adolescent idiopathic scoliosis (AIS) is the most common form of abnormal spine curvature observed in patients age 10 to 18. Typically characterized by shoulder height and waistline asymmetry, AIS may drive uneven distribution of force in the h ... Full text Link to item Cite

Association of findings on preoperative extension lateral cervical radiography with osteotomy type, approach, and postoperative cervical alignment after cervical deformity surgery.

Journal Article J Neurosurg Spine · January 1, 2022 OBJECTIVE: The authors' objective was to determine whether preoperative lateral extension cervical spine radiography can be used to predict osteotomy type and postoperative alignment parameters after cervical spine deformity surgery. METHODS: A total of 10 ... Full text Link to item Cite

A predictive model of perioperative myocardial infarction following elective spine surgery.

Journal Article J Clin Neurosci · January 2022 Myocardial infarction (MI), and its predictive factors, has been an understudied complication following spine operations. The objective was to assess the risk factors for perioperative MI in elective spine surgery patients as a retrospective case control s ... Full text Link to item Cite

Treatment Outcomes in American Football Players After Intervertebral Disk Herniation: Systematic Review and Meta-Analysis.

Journal Article Neurosurgery · January 1, 2022 BACKGROUND: American football players are at increased risk for many forms of spinal injury. Intervertebral disk herniations are particularly concerning as they are the leading cause of days lost to injury and can have long-term effects on player careers. ... Full text Link to item Cite

Multicenter assessment of outcomes and complications associated with transforaminal versus anterior lumbar interbody fusion for fractional curve correction.

Journal Article J Neurosurg Spine · December 1, 2021 OBJECTIVE: Few studies have compared fractional curve correction after long fusion between transforaminal lumbar interbody fusion (TLIF) and anterior lumbar interbody fusion (ALIF) for adult symptomatic thoracolumbar/lumbar scoliosis (ASLS). The objective ... Full text Open Access Link to item Cite

Global coronal decompensation and adult spinal deformity surgery: comparison of upper-thoracic versus lower-thoracic proximal fixation for long fusions.

Journal Article J Neurosurg Spine · December 1, 2021 OBJECTIVE: Deterioration of global coronal alignment (GCA) may be associated with worse outcomes after adult spinal deformity (ASD) surgery. The impact of fusion length and upper instrumented vertebra (UIV) selection on patients with this complication is u ... Full text Open Access Link to item Cite

Validation of the ACS-NSQIP Risk Calculator: A Machine-Learning Risk Tool for Predicting Complications and Mortality Following Adult Spinal Deformity Corrective Surgery.

Journal Article Int J Spine Surg · December 2021 OBJECTIVE: To calculate the risk for postoperative complications and mortality after corrective surgery of adult spinal deformity (ASD) patients using the American College of Surgeons National Surgical Quality Improvement Program (ACS-NSQIP) surgical risk ... Full text Link to item Cite

Lateral Thoracolumbar Listhesis as an Independent Predictor of Disability in Adult Scoliosis Patients: Multivariable Assessment Before and After Surgical Realignment.

Journal Article Neurosurgery · November 18, 2021 BACKGROUND: Lateral (ie, coronal) vertebral listhesis may contribute to disability in adult scoliosis patients. OBJECTIVE: To assess for a correlation between lateral listhesis and disability among patients with adult scoliosis. METHODS: This was a retrosp ... Full text Open Access Link to item Cite

Operative Treatment of Severe Scoliosis in Symptomatic Adults: Multicenter Assessment of Outcomes and Complications With Minimum 2-Year Follow-up.

Journal Article Neurosurgery · November 18, 2021 BACKGROUND: Few reports focus on adults with severe scoliosis. OBJECTIVE: To report surgical outcomes and complications for adults with severe scoliosis. METHODS: A multicenter, retrospective review was performed on operatively treated adults with severe s ... Full text Open Access Link to item Cite

Not Frail and Elderly: How Invasive Can We Go in This Different Type of Adult Spinal Deformity Patient?

Journal Article Spine (Phila Pa 1976) · November 15, 2021 STUDY DESIGN: Retrospective review of a single-center spine database. OBJECTIVE: Investigate the intersections of chronological age and physiological age via frailty to determine the influence of surgical invasiveness on patient outcomes. SUMMARY OF BACKGR ... Full text Link to item Cite

Symptomatic Epidural Hematoma After Elective Cervical Spine Surgery: Incidence, Timing, Risk Factors, and Associated Complications.

Journal Article Oper Neurosurg (Hagerstown) · November 15, 2021 BACKGROUND: As the rate of elective cervical spine surgery increases, studies of complications may improve quality of care. Symptomatic postoperative cervical epidural hematomas (PCEH) are rare but result in significant morbidity. Because of their low inci ... Full text Link to item Cite

Appropriate Risk Stratification and Accounting for Age-Adjusted Reciprocal Changes in the Thoracolumbar Spine Reduces the Incidence and Magnitude of Distal Junctional Kyphosis in Cervical Deformity Surgery.

Journal Article Spine (Phila Pa 1976) · November 1, 2021 STUDY DESIGN: Retrospective cohort study of a prospective cervical deformity (CD) database. OBJECTIVE: Identify factors associated with distal junctional kyphosis (DJK); assess differences across DJK types. SUMMARY OF BACKGROUND DATA: DJK may develop as co ... Full text Open Access Link to item Cite

Frequency and Implications of Concurrent Complications Following Adult Spinal Deformity Corrective Surgery.

Journal Article Spine (Phila Pa 1976) · November 1, 2021 STUDY DESIGN: Retrospective review. OBJECTIVE: Identify co-occurring perioperative complications and associated predictors in a population of patients undergoing surgery for adult spinal deformity (ASD). SUMMARY OF BACKGROUND DATA: Few studies have investi ... Full text Link to item Cite

Surgical Strategy for the Management of Cervical Deformity Is Based on Type of Cervical Deformity.

Journal Article J Clin Med · October 21, 2021 OBJECTIVES: Cervical deformity morphotypes based on type and location of deformity have previously been described. This study aimed to examine the surgical strategies implemented to treat these deformity types and identify if differences in treatment strat ... Full text Open Access Link to item Cite

At What Point Should the Thoracolumbar Region Be Addressed in Patients Undergoing Corrective Cervical Deformity Surgery?

Journal Article Spine (Phila Pa 1976) · October 15, 2021 STUDY DESIGN: Retrospective cohort study. OBJECTIVE: The aim of this study was to investigate the impact of cervical to thoracolumbar ratios on poor outcomes in cervical deformity (CD) corrective surgery. SUMMARY OF BACKGROUND DATA: Consideration of distal ... Full text Open Access Link to item Cite

Outcomes of Patients With Parkinson Disease Undergoing Cervical Spine Surgery for Radiculopathy and Myelopathy With Minimum 2-Year Follow-up.

Journal Article Clin Spine Surg · October 1, 2021 STUDY DESIGN: This was a retrospective cohort analysis. OBJECTIVE: To identify the impact of Parkinson disease (PD) on 2-year postoperative outcomes following cervical spine surgery (CSS). SUMMARY OF BACKGROUND DATA: (PD) patients are prone to spine malali ... Full text Link to item Cite

Same Day Surgical Intervention Dramatically Minimizes Complication Occurrence and Optimizes Perioperative Outcomes for Central Cord Syndrome.

Journal Article Clin Spine Surg · October 1, 2021 STUDY DESIGN: This was a retrospective cohort study. OBJECTIVE: The aim of this study was to investigate associations between time to surgical intervention and outcomes for central cord syndrome (CCS) patients. BACKGROUND: As surgery is increasingly recomm ... Full text Link to item Cite

Does Matching Roussouly Spinal Shape and Improvement in SRS-Schwab Modifier Contribute to Improved Patient-reported Outcomes?

Journal Article Spine (Phila Pa 1976) · September 15, 2021 STUDY DESIGN: Retrospective review. OBJECTIVE: The aim of this study was to evaluate outcomes of matching Roussouly and improving in Schwab modifier following adult spinal deformity (ASD) surgery. SUMMARY OF BACKGROUND DATA: The Roussouly Classification sy ... Full text Link to item Cite

Predictors of serious, preventable, and costly medical complications in a population of adult spinal deformity patients.

Journal Article Spine J · September 2021 BACKGROUND CONTEXT: In 2008, the Centers for Medicare and Medicaid Services (CMS) established a list of hospital-acquired conditions (HACs) with significant deleterious effects on both patients and providers. Adult spinal deformity (ASD) surgery is complex ... Full text Open Access Link to item Cite

Prioritization of Realignment Associated With Superior Clinical Outcomes for Cervical Deformity Patients.

Journal Article Neurospine · September 2021 OBJECTIVE: To prioritize the cervical parameter targets for alignment. METHODS: Included: cervical deformity (CD) patients (C2-7 Cobb angle > 10°, cervical lordosis > 10°, cervical sagittal vertical axis [cSVA] > 4 cm, or chin-brow vertical angle > 25°) wi ... Full text Open Access Link to item Cite

Impact of Myelopathy Severity and Degree of Deformity on Postoperative Outcomes in Cervical Spinal Deformity Patients.

Journal Article Neurospine · September 2021 OBJECTIVE: Malalignment of the cervical spine can result in cord compression, leading to a myelopathy diagnosis. Whether deformity or myelopathy severity is stronger predictors of surgical outcomes is understudied. METHODS: Surgical cervical deformity (CD) ... Full text Link to item Cite

Outcomes of Surgical Treatment for 138 Patients With Severe Sagittal Deformity at a Minimum 2-Year Follow-up: A Case Series.

Journal Article Oper Neurosurg (Hagerstown) · August 16, 2021 BACKGROUND: Operative treatment of adult spinal deformity (ASD) can be very challenging with high complication rates. It is well established that patients benefit from such treatment; however, the surgical outcomes for patients with severe sagittal deformi ... Full text Open Access Link to item Cite

A Risk-Benefit Analysis of Increasing Surgical Invasiveness Relative to Frailty Status in Adult Spinal Deformity Surgery.

Journal Article Spine (Phila Pa 1976) · August 15, 2021 STUDY DESIGN: Retrospective review of a prospectively enrolled multicenter Adult Spinal Deformity (ASD) database. OBJECTIVE: Investigate invasiveness and outcomes of ASD surgery by frailty state. SUMMARY OF BACKGROUND DATA: The ASD Invasiveness Index incor ... Full text Open Access Link to item Cite

Artificial intelligence clustering of adult spinal deformity sagittal plane morphology predicts surgical characteristics, alignment, and outcomes.

Journal Article Eur Spine J · August 2021 PURPOSE: AI algorithms have shown promise in medical image analysis. Previous studies of ASD clusters have analyzed alignment metrics-this study sought to complement these efforts by analyzing images of sagittal anatomical spinopelvic landmarks. We hypothe ... Full text Open Access Link to item Cite

Frailty Severity Impacts Development of Hospital-acquired Conditions in Patients Undergoing Corrective Surgery for Adult Spinal Deformity.

Journal Article Clin Spine Surg · August 1, 2021 STUDY DESIGN: This was a retrospective cohort study of a national dataset. PURPOSE: The purpose of this study was to consider the influence of frailty on the development of hospital-acquired conditions (HACs) in adult spinal deformity (ASD). SUMMARY OF BAC ... Full text Link to item Cite

Bariatric surgery diminishes spinal diagnoses in a morbidly obese population: A 2-year survivorship analysis of cervical and lumbar pathologies.

Journal Article J Clin Neurosci · August 2021 The effects of bariatric surgery on diminishing spinal diagnoses have yet to be elucidated in the literature. The purpose of this study was to assess the rate in which various spinal diagnoses diminish after bariatric surgery. This was a retrospective anal ... Full text Link to item Cite

Defining a Surgical Invasiveness Threshold for Increased Risk of a Major Complication Following Adult Spinal Deformity Surgery.

Journal Article Spine (Phila Pa 1976) · July 15, 2021 STUDY DESIGN: Retrospective review. OBJECTIVES: The aim of this study was to define a surgical invasiveness threshold that predicts major complications after adult spinal deformity (ASD) surgery; use this threshold to categorize patients into quartiles by ... Full text Open Access Link to item Cite

The Five-item Modified Frailty Index is Predictive of 30-day Postoperative Complications in Patients Undergoing Spine Surgery.

Journal Article Spine (Phila Pa 1976) · July 15, 2021 STUDY DESIGN: Retrospective cohort study. OBJECTIVE: This study aimed to evaluate the utility of the modified frailty index (mFI-5) in a population of patients undergoing spine surgery. SUMMARY OF BACKGROUND DATA: The original modified frailty index (mFI-1 ... Full text Link to item Cite

Improvement in some Ames-ISSG cervical deformity classification modifier grades may correlate with clinical improvement.

Journal Article J Clin Neurosci · July 2021 This retrospective cohort study describes adult cervical deformity(ACD) patients with Ames-ACD classification at baseline(BL) and 1-year post-operatively and assesses the relationship of improvement in Ames modifiers with clinical outcomes. Patients ≥ 18yr ... Full text Open Access Link to item Cite

Radiographic Features Associated With Increased Surgical Invasiveness in Pyogenic Vertebral Column Osteomyelitis.

Journal Article Global Spine J · July 2021 STUDY DESIGN: Single center retrospective cohort study. OBJECTIVES: Assess the association between well-known radiographic features for spinal instability from the Spinal Instability in Neoplasia Score (SINS) and surgical invasiveness in treating vertebral ... Full text Link to item Cite

Improvement in SRS-22R Self-Image Correlate Most with Patient Satisfaction after 3-Column Osteotomy.

Journal Article Spine (Phila Pa 1976) · June 15, 2021 STUDY DESIGN: Longitudinal cohort. OBJECTIVES: The aim of this study was to examine the relationship between patient satisfaction, patient-reported outcome measures (PROMs) and radiographic parameters in adult spine deformity (ASD) patients undergoing thre ... Full text Open Access Link to item Cite

Timing of conversion to cervical malalignment and proximal junctional kyphosis following surgical correction of adult spinal deformity: a 3-year radiographic analysis.

Journal Article J Neurosurg Spine · June 1, 2021 OBJECTIVE: The goal of this study was to assess the conversion rate from baseline cervical alignment to postoperative cervical deformity (CD) and the corresponding proximal junctional kyphosis (PJK) rate in patients undergoing thoracolumbar adult spinal de ... Full text Open Access Link to item Cite

Patient-related and radiographic predictors of inferior health-related quality-of-life measures in adult patients with nonoperative spinal deformity.

Journal Article J Neurosurg Spine · June 1, 2021 OBJECTIVE: Patients with nonoperative (N-Op) adult spinal deformity (ASD) have inferior long-term spinopelvic alignment and clinical outcomes. Predictors of lower quality-of-life measures in N-Op populations have yet to be sufficiently investigated. The ai ... Full text Open Access Link to item Cite

Baseline Frailty Status Influences Recovery Patterns and Outcomes Following Alignment Correction of Cervical Deformity.

Journal Article Neurosurgery · May 13, 2021 BACKGROUND: Frailty severity may be an important determinant for impaired recovery after cervical spine deformity (CD) corrective surgery. OBJECTIVE: To evaluate postop clinical recovery among CD patients between frailty states undergoing primary procedure ... Full text Open Access Link to item Cite

Predictors of Superior Recovery Kinetics in Adult Cervical Deformity Correction: An Analysis Using a Novel Area Under the Curve Methodology.

Journal Article Spine (Phila Pa 1976) · May 1, 2021 STUDY DESIGN: Retrospective review of a prospective database. OBJECTIVE: The aim of this study was to identify demographic, surgical, and radiographic factors that predict superior recovery kinetics following cervical deformity (CD) corrective surgery. SUM ... Full text Open Access Link to item Cite

A Comparison of Three Different Positioning Techniques on Surgical Corrections and Postoperative Alignment in Cervical Spinal Deformity (CD) Surgery.

Journal Article Spine (Phila Pa 1976) · May 1, 2021 STUDY DESIGN: Retrospective review of a prospective multicenter cervical deformity database. OBJECTIVE: To examine the differences in sagittal alignment correction between three positioning methods in cervical spinal deformity surgery (CD). SUMMARY OF BACK ... Full text Open Access Link to item Cite

Surgical outcomes in rigid versus flexible cervical deformities.

Journal Article J Neurosurg Spine · May 1, 2021 OBJECTIVE: Cervical deformity (CD) patients have severe disability and poor health status. However, little is known about how patients with rigid CD compare with those with flexible CD. The main objectives of this study were to 1) assess whether patients w ... Full text Open Access Link to item Cite

Radiation Exposure in Posterior Lumbar Fusion: A Comparison of CT Image-Guided Navigation, Robotic Assistance, and Intraoperative Fluoroscopy.

Journal Article Global Spine J · May 2021 STUDY DESIGN: Retrospective clinical review. OBJECTIVE: To assess the use of intraoperative computed tomography (CT) image-guided navigation (IGN) and robotic assistance in posterior lumbar surgery and their relationship with patient radiation exposure and ... Full text Link to item Cite

Depression Symptoms Are Associated with Poor Functional Status Among Operative Spinal Deformity Patients.

Journal Article Spine (Phila Pa 1976) · April 1, 2021 STUDY DESIGN: Retrospective review of prospective multicenter database. OBJECTIVE: The aim of this study was to investigate how preoperative mental status affects preoperative and postoperative disability and health scores in adult spinal deformity (ASD) p ... Full text Open Access Link to item Cite

Outcomes of Same-Day Orthopedic Surgery: Are Spine Patients More Likely to Have Optimal Immediate Recovery From Outpatient Procedures?

Journal Article Int J Spine Surg · April 2021 BACKGROUND: Spinal surgery is associated with an inherently elevated risk profile, and thus far there has been limited discussion about how these outpatient spine patients are benefiting from these same-day procedures against other typical outpatient ortho ... Full text Link to item Cite

Multicenter assessment of surgical outcomes in adult spinal deformity patients with severe global coronal malalignment: determination of target coronal realignment threshold.

Journal Article J Neurosurg Spine · March 1, 2021 OBJECTIVE: The impact of global coronal malalignment (GCM; C7 plumb line-midsacral offset) on adult spinal deformity (ASD) treatment outcomes is unclear. Here, the authors' primary objective was to assess surgical outcomes and complications in patients wit ... Full text Open Access Link to item Cite

Factors influencing upper-most instrumented vertebrae selection in adult spinal deformity patients: qualitative case-based survey of deformity surgeons.

Journal Article J Spine Surg · March 2021 BACKGROUND: The decision upper-most instrumented vertebrae (UIV) in a multi-level fusion procedure can dramatically influence outcomes of corrective spine surgery. We aimed to create an algorithm for selection of UIV based on surgeon selection/reasoning of ... Full text Open Access Link to item Cite

Development of a Preoperative Adult Spinal Deformity Comorbidity Score That Correlates With Common Quality and Value Metrics: Length of Stay, Major Complications, and Patient-Reported Outcomes.

Journal Article Global Spine J · March 2021 STUDY DESIGN: Retrospective review of a multicenter prospective registry. OBJECTIVES: Our goal was to develop a method to risk-stratify adult spinal deformity (ASD) patients on the basis of their accumulated health deficits. We developed a novel comorbidit ... Full text Link to item Cite

Anterior Approach to the Subaxial Cervical Spine: Pearls and Pitfalls.

Journal Article J Am Acad Orthop Surg · March 1, 2021 Since its introduction by Smith and Robinson, the anterior approach to the subaxial cervical spine has become one of the standard procedures for numerous cervical spine pathologies, including, but not limited to degenerative disease, trauma, tumor, deformi ... Full text Link to item Cite

Practical answers to frequently asked questions for shared decision-making in adult spinal deformity surgery.

Journal Article J Neurosurg Spine · February 1, 2021 OBJECTIVE: The shared decision-making (SDM) process provides an opportunity to answer frequently asked questions (FAQs). The authors aimed to present a concise list of answers to FAQs to aid in SDM for adult spinal deformity (ASD) surgery. METHODS: From a ... Full text Open Access Link to item Cite

Complications After Adult Spinal Deformity Surgeries: All Are Not Created Equal.

Journal Article Int J Spine Surg · February 2021 BACKGROUND: Data on timing of complications are important for accurate quality assessments. We sought to better define pre- and postdischarge complications occurring within 90 days of adult spinal deformity (ASD) surgery and quantify the effect of multiple ... Full text Link to item Cite

The Patient-Reported Outcome Measurement Information System (PROMIS) Better Reflects the Impact of Length of Stay and the Occurrence of Complications Within 90 Days Than Legacy Outcome Measures for Lumbar Degenerative Surgery.

Journal Article Int J Spine Surg · February 2021 BACKGROUND: The Patient-Reported Outcome Measurement Information System (PROMIS) and legacy outcome measures like the Oswestry Disability Index (ODI) have not been compared for their sensitivity in reflecting the impact of perioperative complications and l ... Full text Link to item Cite

Pelvic Incidence Affects Age-adjusted Alignment Outcomes in a Population of Adult Spinal Deformity.

Journal Article Clin Spine Surg · February 1, 2021 STUDY DESIGN: A single-center retrospective cohort study. OBJECTIVE: The objective of this study was to assess the effects of patient height and pelvic incidence (PI) on age-adjusted alignment outcomes of surgical adult spinal deformity (ASD) patients. SUM ... Full text Link to item Cite

Patients with psychiatric diagnoses have increased odds of morbidity and mortality in elective orthopedic surgery.

Journal Article J Clin Neurosci · February 2021 Psychiatric diagnoses (PD) present a significant burden on elective surgery patients and may have potentially dramatic impacts on outcomes. As ailments of the spine can be particularly debilitating, the effect of PD on outcomes was compared between electiv ... Full text Link to item Cite

A cost benefit analysis of increasing surgical technology in lumbar spine fusion.

Journal Article Spine J · February 2021 BACKGROUND CONTEXT: Numerous advances have been made in the field of spine fusion, such as minimally invasive (MIS) or robotic-assisted spine surgery. However, it is unknown how these advances have impacted the cost of care. PURPOSE: Compare the economic o ... Full text Link to item Cite

Effect of age-adjusted alignment goals and distal inclination angle on the fate of distal junctional kyphosis in cervical deformity surgery.

Journal Article J Craniovertebr Junction Spine · 2021 BACKGROUND: Age-adjusted alignment targets in the context of distal junctional kyphosis (DJK) development have yet to be investigated. Our aim was to assess age-adjusted alignment targets, reciprocal changes, and role of lowest instrumented level orientati ... Full text Open Access Link to item Cite

Redefining cervical spine deformity classification through novel cutoffs: An assessment of the relationship between radiographic parameters and functional neurological outcomes.

Journal Article J Craniovertebr Junction Spine · 2021 PURPOSE: The aim is to investigate the relationship between cervical parameters and the modified Japanese Orthopedic Association scale (mJOA). MATERIALS AND METHODS: Surgical adult cervical deformity (CD) patients were included in this retrospective analys ... Full text Open Access Link to item Cite

Predictive model for achieving good clinical and radiographic outcomes at one-year following surgical correction of adult cervical deformity.

Journal Article J Craniovertebr Junction Spine · 2021 BACKGROUND: For cervical deformity (CD) surgery, goals include realignment, improved patient quality of life, and improved clinical outcomes. There is limited research identifying patients most likely to achieve all three. OBJECTIVE: The objective is to cr ... Full text Open Access Link to item Cite

Prioritization of realignment associated with superior clinical outcomes for surgical cervical deformity patients.

Journal Article J Craniovertebr Junction Spine · 2021 BACKGROUND: To optimize quality of life in patients with cervical deformity (CD), there may be alignment targets to be prioritized. OBJECTIVE: To prioritize the cervical parameter targets for alignment. METHODS: Included: CD patients (C2-C7 Cobb >10°°, C2- ... Full text Open Access Link to item Cite

Cervical deformity patients with baseline hyperlordosis or hyperkyphosis differ in surgical treatment and radiographic outcomes.

Journal Article J Craniovertebr Junction Spine · 2021 INTRODUCTION: Patients with symptomatic cervical deformity (CD) requiring surgical correction often present with hyperkyphosis (HK), though patients with hyperlordotic curves may require surgery as well. Few studies have investigated differences in CD-corr ... Full text Open Access Link to item Cite

Risk-benefit assessment of major versus minor osteotomies for flexible and rigid cervical deformity correction.

Journal Article J Craniovertebr Junction Spine · 2021 INTRODUCTION: Osteotomies are commonly performed to correct sagittal malalignment in cervical deformity (CD). However, the risks and benefits of performing a major osteotomy for cervical deformity correction have been understudied. The objective of this re ... Full text Open Access Link to item Cite

The impact of postoperative neurologic complications on recovery kinetics in cervical deformity surgery.

Journal Article J Craniovertebr Junction Spine · 2021 OBJECTIVE: The objective of the study is to investigate which neurologic complications affect clinical outcomes the most following cervical deformity (CD) surgery. METHODS: CD patients (C2-C7 Cobb >10°, CL >10°, cSVA >4 cm or chin-brow vertical angle >25°) ... Full text Open Access Link to item Cite

Adolescent and Adult Spinal Deformity: Operative Management

Chapter · January 1, 2021 This chapter presents the case scenarios of a 16-year-old girl previously diagnosed and braced for adolescent idiopathic scoliosis (AIS) presents with chronic radiating midback pain, and a 57-year-old male who presents with progressive spinal deformity (AS ... Full text Cite

What are the major drivers of outcomes in cervical deformity surgery?

Journal Article J Craniovertebr Junction Spine · 2021 BACKGROUND CONTEXT: Cervical deformity (CD) correction is becoming more challenging and complex. Understanding the factors that drive optimal outcomes has been understudied in CD correction surgery. PURPOSE: The purpose of this study is to assess the facto ... Full text Link to item Cite

The impact of the lower instrumented level on outcomes in cervical deformity surgery.

Journal Article J Craniovertebr Junction Spine · 2021 BACKGROUND: The lower instrumented vertebrae (LIVs) in cervical deformity (CD) constructs may have varying effects on patient outcomes that are still poorly understood. OBJECTIVE: The objective of the study is to compare outcomes in CD patients undergoing ... Full text Link to item Cite

Increased cautiousness in adolescent idiopathic scoliosis patients concordant with syringomyelia fails to improve overall patient outcomes.

Journal Article J Craniovertebr Junction Spine · 2021 BACKGROUND: Adolescent idiopathic scoliosis (AIS) is a common cause of spinal deformity in adolescents. AIS can be associated with certain intraspinal anomalies such as syringomyelia (SM). This study assessed the rate o f SM in AIS patients and compared tr ... Full text Link to item Cite

Sports-related Cervical Spine Fracture and Spinal Cord Injury: A Review of Nationwide Pediatric Trends.

Journal Article Spine (Phila Pa 1976) · January 1, 2021 STUDY DESIGN: Retrospective cohort study. OBJECTIVE: Assess trends in sports-related cervical spine trauma using a pediatric inpatient database. SUMMARY OF BACKGROUND DATA: Injuries sustained from sports participation may include cervical spine trauma such ... Full text Link to item Cite

Atlantoaxial dislocation with congenital "sandwich fusion" in the craniovertebral junction: a retrospective case series of 70 patients.

Journal Article BMC Musculoskelet Disord · December 7, 2020 BACKGROUND: In the setting of congenital C1 occipitalization and C2-3 fusion, significant strain is placed on the atlantoaxial joint. Vertebral fusion both above and below the atlantoaxial joint (i.e., a "sandwich") creates substantial instability. We retr ... Full text Link to item Cite

A Simpler, Modified Frailty Index Weighted by Complication Occurrence Correlates to Pain and Disability for Adult Spinal Deformity Patients.

Journal Article Int J Spine Surg · December 2020 BACKGROUND: The Miller et al adult spinal deformity frailty index (ASD-FI) correlates with complication risk; however, its development was not rooted in clinical outcomes, and the 40 factors needed for its calculation limit the index's clinical utility. Th ... Full text Link to item Cite

Preoperative evaluation and surgical counselling in the elderly

Journal Article Seminars in Spine Surgery · December 1, 2020 The elderly are the largest segment of patients undergoing spine surgery and are expected to continue to grow with time. Proper preoperative evaluation of the elderly is something every spine surgeon will need to be adept at. Evaluating and optimizing an e ... Full text Cite

Prospective multicenter assessment of complication rates associated with adult cervical deformity surgery in 133 patients with minimum 1-year follow-up.

Journal Article J Neurosurg Spine · November 1, 2020 OBJECTIVE: Although surgical treatment can provide significant improvement of symptomatic adult cervical spine deformity (ACSD), few reports have focused on the associated complications. The objective of this study was to assess complication rates at a min ... Full text Open Access Link to item Cite

Biologics and Minimally Invasive Approach to TLIFs: What Is the Risk of Radiculitis?

Journal Article Int J Spine Surg · October 2020 BACKGROUND: Bone morphogenetic protein (BMP) and allograft containing mesenchymal stem cells (live cell) are popular biologic substitutes for iliac crest autograft used in transforaminal lumbar interbody fusion (TLIF). Use of these agents in the pathogenes ... Full text Link to item Cite

Establishing the minimum clinically important difference in Neck Disability Index and modified Japanese Orthopaedic Association scores for adult cervical deformity.

Journal Article J Neurosurg Spine · October 1, 2020 OBJECTIVE: It is being increasingly recognized that adult cervical deformity (ACD) is correlated with significant pain, myelopathy, and disability, and that patients who undergo deformity correction gain significant benefit. However, there are no defined t ... Full text Link to item Cite

Assessment of Surgical Procedural Time, Pedicle Screw Accuracy, and Clinician Radiation Exposure of a Novel Robotic Navigation System Compared With Conventional Open and Percutaneous Freehand Techniques: A Cadaveric Investigation.

Journal Article Global Spine J · October 2020 STUDY DESIGN: Cadaveric study. OBJECTIVE: To evaluate accuracy, radiation exposure, and surgical time of a new robotic-assisted navigation (RAN) platform compared with freehand techniques in conventional open and percutaneous procedures. METHODS: Ten board ... Full text Link to item Cite

A cost utility analysis of treating different adult spinal deformity frailty states.

Journal Article J Clin Neurosci · October 2020 The aim of this study was to investigate the cost utility of treating non-frail versus frail or severely frail adult spinal deformity (ASD) patients. 79 surgical ASD patients >18 years with available frailty and ODI data at baseline and 2-years post-surger ... Full text Link to item Cite

Classifying Complications: Assessing Adult Spinal Deformity 2-Year Surgical Outcomes.

Journal Article Global Spine J · October 2020 STUDY DESIGN: Retrospective review of prospective database. OBJECTIVE: Complication rates for adult spinal deformity (ASD) surgery vary widely because there is no accepted system for categorization. Our objective was to identify the impact of complication ... Full text Link to item Cite

Cost-effectiveness of surgical treatment of adult spinal deformity: comparison of posterior-only versus anteroposterior approach.

Journal Article Spine J · September 2020 BACKGROUND CONTEXT: Considerable debate exists regarding the optimal surgical approach for adult spinal deformity (ASD). It remains unclear which approach, posterior-only or combined anterior-posterior (AP), is more cost-effective. Our goal is to determine ... Full text Open Access Link to item Cite

Artificial Intelligence Models Predict Operative Versus Nonoperative Management of Patients with Adult Spinal Deformity with 86% Accuracy.

Journal Article World Neurosurg · September 2020 OBJECTIVE: Patients with ASD show complex and highly variable disease. The decision to manage patients operatively is largely subjective and varies based on surgeon training and experience. We sought to develop models capable of accurately discriminating b ... Full text Open Access Link to item Cite

The spino-pelvic ratio: a novel global sagittal parameter associated with clinical outcomes in adult spinal deformity patients.

Journal Article Eur Spine J · September 2020 PURPOSE: Analysis of interactions of spinal alignment metrics may uncover novel alignment parameters, similar to PI-LL. This study utilized a data-driven approach to hypothesis generation by testing all possible division interactions between spinal alignme ... Full text Open Access Link to item Cite

Tethered Cord Syndrome in the United States Cluster Analysis of Presenting Anomalies and Associated.

Journal Article Bull Hosp Jt Dis (2013) · September 2020 PURPOSE: Tethered cord syndrome (TCS) is an occult spinal dysraphism that includes low lying conus, tight filum terminale, lipomeningomyelocele, split cord malformations, dermal sinus tracts, and dermoids. This congenital disorder has been associated with ... Link to item Cite

Comparing Predictors of Complications After Anterior Cervical Diskectomy and Fusion, Total Disk Arthroplasty, and Combined Anterior Cervical Diskectomy and Fusion-Total Disk Arthroplasty With a Minimum 2-Year Follow-Up.

Journal Article J Am Acad Orthop Surg · September 1, 2020 INTRODUCTION: Outcomes after anterior cervical diskectomy and fusion (ACDF) and cervical total disk arthroplasty (TDA) are satisfactory, but related morbidity and revision surgery rates are notable. This study sought to determine complication variations am ... Full text Link to item Cite

Epidural Steroid Injections for Management of Degenerative Spondylolisthesis: Little Effect on Clinical Outcomes in Operatively and Nonoperatively Treated Patients.

Journal Article J Bone Joint Surg Am · August 5, 2020 BACKGROUND: Although epidural steroid injection (ESI) may provide pain relief for patients with degenerative spondylolisthesis in treatment regimens of up to 4 months, it remains unclear whether ESI affects crossover from nonoperative to operative manageme ... Full text Link to item Cite

Intraoperative alignment goals for distinctive sagittal morphotypes of severe cervical deformity to achieve optimal improvements in health-related quality of life measures.

Journal Article Spine J · August 2020 BACKGROUND CONTEXT: Patients with severe cervical deformity (CD) often have profound deficits in numerous activities of daily living. The association between health status and postoperative radiographic goals is difficult to quantify. PURPOSE: We aimed to ... Full text Open Access Link to item Cite

Scoring System to Triage Patients for Spine Surgery in the Setting of Limited Resources: Application to the Coronavirus Disease 2019 (COVID-19) Pandemic and Beyond.

Journal Article World Neurosurg · August 2020 BACKGROUND: As of May 4, 2020, the coronavirus disease 2019 (COVID-19) pandemic has affected >3.5 million people and touched every inhabited continent. Accordingly, it has stressed health systems worldwide, leading to the cancellation of elective surgical ... Full text Link to item Cite

Probability of severe frailty development among operative and nonoperative adult spinal deformity patients: an actuarial survivorship analysis over a 3-year period.

Journal Article Spine J · August 2020 BACKGROUND: Little is known of how frailty, a dynamic measure of physiological age, progresses relative to age or disability status. Operative treatment of adult spinal deformity (ASD) may play a role in frailty remediation and maintenance. PURPOSE: Compar ... Full text Open Access Link to item Cite

Persistent Postoperative Hyperglycemia as a Risk Factor for Operative Treatment of Deep Wound Infection After Spine Surgery.

Journal Article Neurosurgery · August 1, 2020 BACKGROUND: Surgical site infections (SSIs) affect 1% to 9% of all spine surgeries. Though previous work has found diabetes mellitus type 2 (DM2) to increase the risk for wound infection, the influence of perioperative hyperglycemia is poorly described. OB ... Full text Link to item Cite

Complication Risk in Primary and Revision Minimally Invasive Lumbar Interbody Fusion: A Comparable Alternative to Conventional Open Techniques?

Journal Article Global Spine J · August 2020 STUDY DESIGN: Retrospective cohort study of prospective patients undergoing minimally invasive lumbar fusion at a single academic institution. OBJECTIVE: To assess differences in perioperative outcomes between primary and revision MIS (minimally invasive s ... Full text Link to item Cite

Readmission in elective spine surgery: Will short stays be beneficial to patients.

Journal Article J Clin Neurosci · August 2020 There has been limited discussion as to whether spine surgery patients are benefiting from shorter in-patient hospital stays or if they are incurring higher rates of readmission and complications secondary to shortened length of stays. Included in this stu ... Full text Link to item Cite

Cost-Utility Analysis of rhBMP-2 Use in Adult Spinal Deformity Surgery.

Journal Article Spine (Phila Pa 1976) · July 15, 2020 STUDY DESIGN: Economic modeling of data from a multicenter, prospective registry. OBJECTIVE: The aim of this study was to analyze the cost utility of recombinant human bone morphogenetic protein-2 (BMP) in adult spinal deformity (ASD) surgery. SUMMARY OF B ... Full text Open Access Link to item Cite

Assessment of Patient Outcomes and Proximal Junctional Failure Rate of Patients with Adult Spinal Deformity Undergoing Caudal Extension of Previous Spinal Fusion.

Journal Article World Neurosurg · July 2020 OBJECTIVE: This case series examined patients undergoing caudal extension of prior fusion without alteration of the prior upper instrumented vertebra (UIV) to assess patient outcomes and rates of proximal junctional kyphosis (PJK)/proximal junctional failu ... Full text Open Access Link to item Cite

Sexual Dysfunction Secondary to Lumbar Stiffness in Adult Spinal Deformity Patients Before and After Long-Segment Spinal Fusion.

Journal Article World Neurosurg · July 2020 OBJECTIVE: Sexual function is an important factor contributing to quality of life. Adult spinal deformity (ASD) patients may have sexual limitations due to lumbar spinal stiffness that may be affected by long-segment fusion. METHODS: This study utilized a ... Full text Open Access Link to item Cite

Determinants of Chiari I progression in pregnancy.

Journal Article J Clin Neurosci · July 2020 Chiari Malformation type 1 (CM-I) is congenital or an acquired anomaly of the hind brain; develops when the cerebellar tonsils recede downwards below the foramen magnum. Recurrent post tussive suboccipital headache is the common presentation in a pregnant ... Full text Link to item Cite

Defining an Algorithm of Treatment for Severe Cervical Deformity Using Surgeon Survey and Treatment Patterns.

Journal Article World Neurosurg · July 2020 OBJECTIVE: Our aim was to define a treatment strategy for patients with severe cervical deformity (sCD). METHODS: Surgical patients with sCD were isolated based on preoperative radiographic parameters. We sent 10 sCD cases to 7 surgeons to find consensus o ... Full text Link to item Cite

The Influence of Surgical Intervention and Sagittal Alignment on Frailty in Adult Cervical Deformity.

Journal Article Oper Neurosurg (Hagerstown) · June 1, 2020 BACKGROUND: Frailty is a relatively new area of study for patients with cervical deformity (CD). As of yet, little is known of how operative intervention influences frailty status for patients with CD. OBJECTIVE: To investigate drivers of postoperative fra ... Full text Open Access Link to item Cite

Osteoporosis and Spine Surgery: A Critical Analysis Review.

Journal Article JBJS Rev · June 2020 Despite being part of the aging process, early and adequate management of osteoporosis mitigates adverse outcomes associated with low bone mineral density. Although the health-care burden of osteoporosis is on the rise, screening and management of osteopor ... Full text Link to item Cite

Ossification of the Posterior Longitudinal Ligament in Cervical Spine Cases Trends in Surgical Treatments and Outcomes in the US from 2005 to 2013.

Journal Article Bull Hosp Jt Dis (2013) · June 2020 BACKGROUND: Ossification of the posterior longitudinal ligament (OPLL) is characterized by ectopic bone formation within the ligament and can elicit cervical spinal canal stenosis. Surgical treatment for OPLL is debated in the literature. This study examin ... Link to item Cite

Predictors of long-term opioid dependence in transforaminal lumbar interbody fusion with a focus on pre-operative opioid usage.

Journal Article Eur Spine J · June 2020 PURPOSE: Predictors of long-term opioid usage in TLIF patients have not been previously explored in the literature. We examined the effect of pre-operative narcotic use in addition to other predictors of the pattern and duration of post-operative narcotic ... Full text Link to item Cite

ODI Cannot Account for All Variation in PROMIS Scores in Patients With Thoracolumbar Disorders.

Journal Article Global Spine J · June 2020 STUDY DESIGN: Retrospective review of single institution. OBJECTIVE: To assess the relationship between Patient-Reported Outcomes Measurement Information System (PROMIS) and Oswestry Disability Index (ODI) scores in thoracolumbar patients. METHODS: Include ... Full text Link to item Cite

Hospital-acquired conditions occur more frequently in elective spine surgery than for other common elective surgical procedures.

Journal Article J Clin Neurosci · June 2020 Hospital-acquired conditions (HACs) have been the focus of recent initiatives by the Centers for Medicare and Medicaid Services in an effort to improve patient safety and outcomes. Spine surgery can be complex and may carry significant comorbidity burden, ... Full text Link to item Cite

Bariatric Surgery Population at Significantly Increased Risk of Spinal Disorders and Surgical Intervention Compared With Morbidly Obese Patients.

Journal Article Clin Spine Surg · May 2020 INTRODUCTION: Obesity is associated with acceleration of musculoskeletal degenerative diseases and functional impairment secondary to spinal disorders. Bariatric surgery (BS) is an increasingly common treatment for severe obesity but can affect bone and mi ... Full text Link to item Cite

Comparative outcomes of operative relative to medical management of spondylodiscitis accounting for frailty status at presentation.

Journal Article J Clin Neurosci · May 2020 PURPOSE: Investigate outcomes in a spondylodiscitis (SD) patient cohort undergoing operative and medical treatment or medical treatment alone, accounting for frailty status at presentation. METHODS: Patients >18 years old undergoing treatment for SD were r ... Full text Link to item Cite

Does Patient Frailty Status Influence Recovery Following Spinal Fusion for Adult Spinal Deformity?: An Analysis of Patients With 3-Year Follow-up.

Journal Article Spine (Phila Pa 1976) · April 1, 2020 STUDY DESIGN: Retrospective review of a prospective database. OBJECTIVE: The aim of this study was to evaluate postop clinical recovery among adult spinal deformity (ASD) patients between frailty states undergoing primary procedures SUMMARY OF BACKGROUND D ... Full text Open Access Link to item Cite

Upper-thoracic versus lower-thoracic upper instrumented vertebra in adult spinal deformity patients undergoing fusion to the pelvis: surgical decision-making and patient outcomes.

Journal Article J Neurosurg Spine · April 1, 2020 OBJECTIVE: Optimal patient selection for upper-thoracic (UT) versus lower-thoracic (LT) fusion during adult spinal deformity (ASD) correction is challenging. Radiographic and clinical outcomes following UT versus LT fusion remain incompletely understood. T ... Full text Open Access Link to item Cite

Obesity negatively affects cost efficiency and outcomes following adult spinal deformity surgery.

Journal Article Spine J · April 2020 BACKGROUND CONTEXT: Obesity has risen to epidemic proportions within the United States. As the rates of obesity have increased, so has its prevalence among patients undergoing adult spinal deformity (ASD) surgery. The effect of obesity on the cost efficien ... Full text Link to item Cite

The morphology of cervical deformities: a two-step cluster analysis to identify cervical deformity patterns.

Journal Article J Neurosurg Spine · March 1, 2020 OBJECTIVE: Cervical deformity (CD) is difficult to define due to the high variability in normal cervical alignment based on postural- and thoracolumbar-driven changes to cervical alignment. The purpose of this study was to identify whether patterns of sagi ... Full text Open Access Link to item Cite

A New Piece of the Puzzle to Understand Cervical Sagittal Alignment: Utilizing a Novel Angle δ to Describe the Relationship among T1 Vertebral Body Slope, Cervical Lordosis, and Cervical Sagittal Alignment.

Journal Article Neurosurgery · March 1, 2020 Cervical alignment has become increasingly important in the planning of spine surgery. A relationship between the slope of T1 (T1S), the cervical lordosis (CL), and the overall cervical sagittal vertical axis (cSVA) has previously been demonstrated, but th ... Full text Open Access Link to item Cite

Metabolic Syndrome has a Negative Impact on Cost Utility Following Spine Surgery.

Journal Article World Neurosurg · March 2020 OBJECTIVE: Investigate the differences in spine surgery cost for metabolic syndrome patients. METHODS: Included were patients ≥18 undergoing fusion. Patients were divided into cervical, thoracic, and lumbar groups based on their upper instrumented vertebra ... Full text Link to item Cite

The effect of vascular approach surgeons on perioperative complications in lateral transpsoas lumbar interbody fusions.

Journal Article Spine J · March 2020 BACKGROUND CONTEXT: Lateral lumbar interbody fusion (LLIF) is a popular technique used in spine surgery. It is minimally invasive, provides indirect decompression, and allows for coronal plane deformity correction. Despite these benefits, the approach to L ... Full text Link to item Cite

Pelvic Compensation in Sagittal Malalignment: How Much Retroversion Can the Pelvis Accommodate?

Journal Article Spine (Phila Pa 1976) · February 15, 2020 STUDY DESIGN: Single-center retrospective study. OBJECTIVE: Investigate how differing degrees of pelvic incidence (PI) modulate the recruitment of pelvic tilt (PT) in response to similar amounts of sagittal malalignment as measured by T1-Pelvic Angle (TPA) ... Full text Link to item Cite

Cervical, Thoracic, and Spinopelvic Compensation After Proximal Junctional Kyphosis (PJK): Does Location of PJK Matter?

Journal Article Global Spine J · February 2020 STUDY DESIGN: Retrospective case series. OBJECTIVE: Compensatory changes above a proximal junctional kyphosis (PJK) have not been defined. Understanding these mechanisms may help determine optimal level selection when performing revision for PJK. This stud ... Full text Open Access Link to item Cite

Durability of Satisfactory Functional Outcomes Following Surgical Adult Spinal Deformity Correction: A 3-Year Survivorship Analysis.

Journal Article Oper Neurosurg (Hagerstown) · February 1, 2020 BACKGROUND: Despite reports showing positive long-term functional outcomes following adult spinal deformity (ASD)-corrective surgery, it is unclear which factors affect the durability of these outcomes. OBJECTIVE: To assess durability of functional gains f ... Full text Open Access Link to item Cite

Fatty infiltration of the cervical extensor musculature, cervical sagittal balance, and clinical outcomes: An analysis of operative adult cervical deformity patients.

Journal Article J Clin Neurosci · February 2020 PURPOSE: To assess preliminary associations between fatty-infiltration (FI) of cervical spine extensor musculature, cervical sagittal balance, and clinical outcomes in cervical deformity (CD) patients. METHODS: Operative CD patients (C2-C7 Cobb > 10°, CL > ... Full text Open Access Link to item Cite

Predicting the combined occurrence of poor clinical and radiographic outcomes following cervical deformity corrective surgery.

Journal Article J Neurosurg Spine · February 1, 2020 OBJECTIVE: Cervical deformity (CD) correction is clinically challenging. There is a high risk of developing complications with these highly complex procedures. The aim of this study was to use baseline demographic, clinical, and surgical factors to predict ... Full text Open Access Link to item Cite

Decision Tree-based Modelling for Identification of Predictors of Blood Loss and Transfusion Requirement After Adult Spinal Deformity Surgery.

Journal Article Int J Spine Surg · February 2020 BACKGROUND: Multilevel fusions and complex osteotomies to restore global alignment in adult spinal deformity (ASD) surgery can lead to increased operative time and blood loss. In this regard, we assessed factors predictive of perioperative blood product tr ... Full text Link to item Cite

MRI Radiological Predictors of Requiring Microscopic Lumbar Discectomy After Lumbar Disc Herniation.

Journal Article Global Spine J · February 2020 STUDY DESIGN: Retrospective cohort study. OBJECTIVE: To investigate radiological differences in lumbar disc herniations (herniated nucleus pulposus [HNP]) between patients receiving microscopic lumbar discectomy (MLD) and nonoperative patients. METHODS: Pa ... Full text Link to item Cite

Operative fusion of patients with metabolic syndrome increases risk for perioperative complications.

Journal Article J Clin Neurosci · February 2020 Metabolic syndrome is a clustering of clinical findings defined in the literature including hypertension, high glucose, abdominal obesity, high triglyceride, and low high-density lipoprotein cholesterol levels. The purpose of this study was to assess perio ... Full text Link to item Cite

Development of a Novel Cervical Deformity Surgical Invasiveness Index.

Journal Article Spine (Phila Pa 1976) · January 15, 2020 STUDY DESIGN: Retrospective review. OBJECTIVE: The aim of this study was to develop a novel surgical invasiveness index for cervical deformity (CD) surgery that incorporates CD-specific parameters. SUMMARY OF BACKGROUND DATA: There has been a surgical inva ... Full text Open Access Link to item Cite

Incidence of Acute, Progressive, and Delayed Proximal Junctional Kyphosis Over an 8-Year Period in Adult Spinal Deformity Patients.

Journal Article Oper Neurosurg (Hagerstown) · January 1, 2020 BACKGROUND: Proximal junctional kyphosis (PJK) is a common radiographic complication of adult spinal deformity (ASD) corrective surgery. Although previous literature has reported a 5 to 61% incidence of PJK, these studies are limited by small sample sizes ... Full text Open Access Link to item Cite

Predicting the Occurrence of Postoperative Distal Junctional Kyphosis in Cervical Deformity Patients.

Journal Article Neurosurgery · January 1, 2020 BACKGROUND: Distal junctional kyphosis (DJK) development after cervical deformity (CD)-corrective surgery is a growing concern for surgeons and patients. Few studies have investigated risk factors that predict the occurrence of DJK. OBJECTIVE: To predict D ... Full text Open Access Link to item Cite

Radiographic benefit of incorporating the inflection between the cervical and thoracic curves in fusion constructs for surgical cervical deformity patients.

Journal Article J Craniovertebr Junction Spine · 2020 PURPOSE: The aim is to assess the relationship between cervicothoracic inflection point and baseline disability, as well as the relationship between clinical outcomes and pre- to postoperative changes in inflection point. METHODS: Cervical deformity (CD) p ... Full text Open Access Link to item Cite

Complication rates following Chiari malformation surgical management for Arnold-Chiari type I based on surgical variables: A national perspective.

Journal Article J Craniovertebr Junction Spine · 2020 INTRODUCTION: This study aimed to identify complication trends of Chiari Malformation Type 1 patients (CM-1) for certain procedures and concomitant diagnoses on a national level. MATERIALS: The Kids' Inpatient Database was queried for diagnoses of operativ ... Full text Link to item Cite

Timing to surgery of Chiari malformation type 1 affects complication types: An analysis of 13,812 patients.

Journal Article J Craniovertebr Junction Spine · 2020 BACKGROUND: Chiari malformations (CM) are congenital defects due to hypoplasia of the posterior fossa with cerebellar herniation into the foramen magnum and upper spinal canal. Despite the vast research done on this neurological and structural syndrome, cl ... Full text Link to item Cite

Review of Craniocervical Sagittal Alignment.

Journal Article Bull Hosp Jt Dis (2013) · 2020 Cervical alignment plays a critical role in the diagnosis and treatment of spinal pathology. There has been a proliferation of novel radiographic parameters to quantify cranial and cervical alignment. These parameters have been placed in clinical context b ... Link to item Cite

Occipital neuralgia: A neurosurgical perspective.

Journal Article J Clin Neurosci · January 2020 Occipital neuralgia typically arises in the setting of nerve compression by fibrosis, surrounding anatomic structures, or osseous pathology, such as bone spurs or hypertrophic atlanto-epistropic ligament. It generally presents as paroxysmal bouts of sharp ... Full text Link to item Cite

Total Knee Arthroplasty in Patients of Advanced Age: A Look at Outcomes and Complications.

Journal Article J Knee Surg · January 2020 Total knee arthroplasty (TKA) is one of the most highly successful orthopaedic procedures performed in North America. It is also one of the most common procedures performed, and its incidence continues to increase. Despite this, it is the opinion of many t ... Full text Link to item Cite

Laboratory markers as useful prognostic measures for survival in patients with spinal metastases.

Journal Article Spine J · January 2020 BACKGROUND CONTEXT: Laboratory values have been found to be useful predictive measures of survival following surgery. The utility of laboratory values for prognosticating outcomes among patients with spinal metastases has not been studied. PURPOSE: To dete ... Full text Link to item Cite

Younger Patients Are Differentially Affected by Stiffness-Related Disability Following Adult Spinal Deformity Surgery.

Journal Article World Neurosurg · December 2019 OBJECTIVE: The Lumbar Stiffness Disability Index (LSDI) assesses impact of lumbar stiffness on activities of daily living. We hypothesized that patients <60 years old would perceive greater lumbar stiffness-related functional limitation following fusion fo ... Full text Open Access Link to item Cite

Utility of Patient-reported Symptoms and Health Conditions for Predicting Surgical Candidacy and Utilization of Surgery via an Outpatient Spine Clinic Nomogram.

Journal Article Clin Spine Surg · December 2019 STUDY DESIGN: Retrospective cohort. OBJECTIVE: Identify the nonradiographic predictors of a patient's decision to undergo elective spine surgery. SUMMARY OF BACKGROUND DATA: Up to 132 million people seek elective evaluation by spine surgeons annually, thou ... Full text Link to item Cite

Association Between Frailty Status and Odontoid Fractures After Traumatic Falls: Investigation of Varying Injury Mechanisms Among 70 Elderly Odontoid Fracture Patients.

Journal Article J Orthop Trauma · December 2019 OBJECTIVES: To determine significant associations between patient frailty status and odontoid fractures across common traumatic mechanisms of injuries (MOIs) in the elderly. DESIGN: Retrospective review. SETTING: Single, academic-affiliated hospital with f ... Full text Link to item Cite

Correction to: Prior bariatric surgery lowers complication rates following spine surgery in obese patients.

Journal Article Acta Neurochir (Wien) · December 2019 The AHRQ (Agency for Healthcare Research and Quality) has requested the correction of the result Tables 1-3 of this study: All stated numbers below 10 shall be modified to read "<10" instead. ... Full text Link to item Cite

Reciprocal Changes in Cervical Alignment After Thoracolumbar Arthrodesis for Adult Spinal Deformity.

Journal Article Spine (Phila Pa 1976) · November 15, 2019 STUDY DESIGN: Multicenter database review of consecutive adult spinal deformity (ASD) patients. OBJECTIVE: The aim of this study was to identify associations between changes in spinopelvic parameters and cervical alignment after thoracolumbar arthrodesis f ... Full text Link to item Cite

Predicting extended operative time and length of inpatient stay in cervical deformity corrective surgery.

Journal Article J Clin Neurosci · November 2019 It's increasingly common for surgeons to operate on more challenging cases and higher risk patients, resulting in longer op-time and inpatient LOS. Factors predicting extended op-time and LOS for cervical deformity (CD) patients are understudied. This stud ... Full text Open Access Link to item Cite

Relationship between body mass index and sagittal vertical axis change as well as health-related quality of life in 564 patients after deformity surgery.

Journal Article J Neurosurg Spine · November 1, 2019 OBJECTIVE: Obesity, a condition that is increasing in prevalence in the United States, has previously been associated with poorer outcomes following deformity surgery, including higher rates of perioperative complications such as deep and superficial infec ... Full text Open Access Link to item Cite

Asymmetric Three-Column Osteotomy for Coronal Malalignment in Adult Patients with Prior Thoracic Fusion for Adolescent Idiopathic Scoliosis: Three-Year Follow-up.

Journal Article World Neurosurg · November 2019 OBJECTIVE: In the setting of a previous proximal fusion, an asymmetric 3-column osteotomy (3CO) can provide tremendous deformity correction. Our goal was to evaluate outcomes and complications of asymmetric 3CO through the proximal fusion mass, for coronal ... Full text Link to item Cite

Spinopelvic Compensatory Mechanisms for Reduced Hip Motion (ROM) in the Setting of Hip Osteoarthritis.

Journal Article Spine Deform · November 2019 STUDY DESIGN: Retrospective review from a single institution. OBJECTIVE: To investigate the effect of hip osteoarthritis (OA) on spinopelvic compensatory mechanisms as a result of reduced hip range of motion (ROM) between sitting and standing. SUMMARY OF B ... Full text Link to item Cite

Diminishing Clinical Returns of Multilevel Minimally Invasive Lumbar Interbody Fusion.

Journal Article Spine (Phila Pa 1976) · October 15, 2019 STUDY DESIGN: Single institution retrospective clinical review. OBJECTIVE: To investigate the relationship between levels fused and clinical outcomes in patients undergoing open and minimally invasive surgical (MIS) lumbar fusion. SUMMARY OF BACKGROUND DAT ... Full text Link to item Cite

Total Inpatient Morphine Milligram Equivalents Can Predict Long-term Opioid Use After Transforaminal Lumbar Interbody Fusion.

Journal Article Spine (Phila Pa 1976) · October 15, 2019 STUDY DESIGN: A retrospective cohort study from a single institution. OBJECTIVE: The aim of this study was to assess the thresholds for postoperative opioid consumption, which are predictive of continued long-term opioid dependence. SUMMARY OF BACKGROUND D ... Full text Link to item Cite

The Dubousset Functional Test is a Novel Assessment of Physical Function and Balance.

Journal Article Clin Orthop Relat Res · October 2019 BACKGROUND: Currently, the functional status of patients undergoing spine surgery is assessed with quality-of-life questionnaires, and a more objective and quantifiable assessment method is lacking. Dr. Jean Dubousset conceptually proposed a four-component ... Full text Link to item Cite

Predictors of Hospital-Acquired Conditions Are Predominately Similar for Spine Surgery and Other Common Elective Surgical Procedures, With Some Key Exceptions.

Journal Article Global Spine J · October 2019 STUDY DESIGN: Retrospective review of a prospectively collected database. OBJECTIVE: To predict the occurrence of hospital-acquired conditions (HACs) 30-days postoperatively and to compare predictors of HACs for spine surgery with other common elective sur ... Full text Link to item Cite

C2 Fractures in the Elderly: Single-Center Evaluation of Risk Factors for Mortality.

Journal Article Asian Spine J · October 2019 STUDY DESIGN: Retrospective cohort study. PURPOSE: The aim of this study was to identify features associated with increased mortality risk in traumatic C2 fractures in the elderly, including measures of comorbidity and frailty. OVERVIEW OF LITERATURE: C2 f ... Full text Link to item Cite

Wound-Healing Issues Following Rotational Ankle Fracture Surgery: Predictors and Local Management Options.

Journal Article Foot Ankle Spec · October 2019 Background. The incidence and risk factors of wound-healing complications following rotational ankle fracture surgery are well documented in the literature. However, there is a paucity regarding management options following these complications. The goal of ... Full text Link to item Cite

Incidence of Congenital Spinal Abnormalities Among Pediatric Patients and Their Association With Scoliosis and Systemic Anomalies.

Journal Article J Pediatr Orthop · September 2019 BACKGROUND: Congenital abnormalities when present, according to VACTERL theory, occur nonrandomly with other congenital anomalies. This study estimates the prevalence of congenital spinal anomalies, and their concurrence with other systemic anomalies. METH ... Full text Link to item Cite

Indicators for Nonroutine Discharge Following Cervical Deformity-Corrective Surgery: Radiographic, Surgical, and Patient-Related Factors.

Journal Article Neurosurgery · September 1, 2019 BACKGROUND: Nonroutine discharge, including discharge to inpatient rehab and skilled nursing facilities, is associated with increased cost-of-care. Given the rising prevalence of cervical deformity (CD)-corrective surgery and the necessity of value-based h ... Full text Open Access Link to item Cite

Is minimally invasive sacroiliac joint arthrodesis the treatment of choice for sacroiliac joint dysfunction?

Journal Article J Spine Surg · September 2019 Full text Link to item Cite

Ambulatory spine surgery.

Journal Article J Spine Surg · September 2019 Full text Link to item Cite

Paraspinal muscle size as an independent risk factor for proximal junctional kyphosis in patients undergoing thoracolumbar fusion.

Conference J Neurosurg Spine · September 1, 2019 OBJECTIVE: Proximal junctional kyphosis (PJK) is a structural complication of spinal fusion in 5%-61% of patients treated for adult spinal deformity. In nearly one-third of these cases, PJK is progressive and requires costly surgical revision. Previous stu ... Full text Link to item Cite

Radiographic Categorization of the Hip-spine Syndrome in the Setting of Hip Osteoarthritis and Sagittal Spinal Malalignment.

Journal Article J Am Acad Orthop Surg · September 1, 2019 BACKGROUND: Interplay between degenerative hip and spine conditions (Hip-Spine Syndrome [HiSS]) warrants effective communication between respective surgeons. We identified radiographic parameters to distinguish a subset of patients with HiSS by evaluating ... Full text Link to item Cite

Minimally Invasive Versus Open Transforaminal Lumbar Interbody Fusion Surgery: An Analysis of Opioids, Nonopioid Analgesics, and Perioperative Characteristics.

Journal Article Global Spine J · September 2019 STUDY DESIGN: Retrospective study of consecutive patients at a single institution.Objective: Examine the effect of minimally invasive surgery (MIS) versus open transforaminal lumbar interbody fusion (TLIF) surgery on long-term postoperative narcotic consum ... Full text Link to item Cite

Short-term Outcomes Following Cervical Laminoplasty and Decompression and Fusion With Instrumentation.

Journal Article Spine (Phila Pa 1976) · September 1, 2019 STUDY DESIGN: Retrospective review of the American College of Surgeons National Surgical Quality Improvement Program (ACS-NSQIP) database years 2010 to 2015. OBJECTIVE: Investigate which short-term outcomes differ for cervical laminoplasty and laminectomy ... Full text Link to item Cite

Factors influencing length of stay following cervical spine surgery: A comparison of myelopathy and radiculopathy patients.

Journal Article J Clin Neurosci · September 2019 In the current value-based healthcare climate where spine surgery is shifting to the ambulatory setting, factors influencing postop length of stay (LOS) are important to surgeons and hospital administrators. Pre-op patient factors including diagnosis of ra ... Full text Link to item Cite

Congenital Etiology Is an Independent Risk Factor for Complications in Adolescents Undergoing Corrective Scoliosis Surgery: Comparison of In-hospital Comorbidities Using Nationwide KID's Inpatient Database.

Journal Article J Pediatr Orthop · September 2019 BACKGROUND: Congenital scoliosis (CS) is associated with more rigid, complex deformities relative to adolescent idiopathic scoliosis (AIS) which theoretically increases surgical complications. Despite extensive literature studying AIS patients, few studies ... Full text Link to item Cite

Recovery kinetics following spinal deformity correction: a comparison of isolated cervical, thoracolumbar, and combined deformity morphometries.

Journal Article Spine J · August 2019 BACKGROUND CONTEXT: The postoperative recovery patterns of cervical deformity patients, thoracolumbar deformity patients, and patients with combined cervical and thoracolumbar deformities, all relative to one another, is not well understood. Clear objectiv ... Full text Open Access Link to item Cite

Pyogenic Vertebral Column Osteomyelitis in Adults: Analysis of Risk Factors for 30-Day and 1-Year Mortality in a Single Center Cohort Study.

Journal Article Asian Spine J · August 2019 STUDY DESIGN: Retrospective cohort study. PURPOSE: To describe our experience in the management and outcomes of vertebral column osteomyelitis (VCO), particularly focusing on the risk factors of early and late mortality. OVERVIEW OF LITERATURE: Previous re ... Full text Link to item Cite

The Impact of Adult Thoracolumbar Spinal Deformities on Standing to Sitting Regional and Segmental Reciprocal Alignment.

Journal Article Int J Spine Surg · August 2019 BACKGROUND: Regional and segmental changes of the lumbar spine have previously been described as patients transition from standing to sitting; however, alignment changes in the cervical and thoracic spine have yet to be investigated. So, the aim of this st ... Full text Link to item Cite

Cervical Deformity Patients Have Baseline Swallowing Dysfunction but Surgery Does Not Increase Dysphagia at 3 Months: Results From a Prospective Cohort Study.

Journal Article Global Spine J · August 2019 STUDY DESIGN: Prospective cohort study. OBJECTIVES: Most studies of dysphagia in the cervical spine have focused on a degenerative patient population; the rate of dysphagia following surgery for cervical deformity (CD) is unknown. This study aims to invest ... Full text Link to item Cite

Spinal Fusion in Parkinson's Disease Patients: A Propensity Score-Matched Analysis With Minimum 2-Year Surveillance.

Journal Article Spine (Phila Pa 1976) · July 15, 2019 STUDY DESIGN: Retrospective analysis. OBJECTIVE: To compare outcomes and complication rates between patients with and without Parkinson's disease (PD) patients undergoing surgery for adult spinal deformity (ASD). SUMMARY OF BACKGROUND DATA: There is limite ... Full text Link to item Cite

Grading of Complications After Cervical Deformity-corrective Surgery: Are Existing Classification Systems Applicable?

Journal Article Clin Spine Surg · July 2019 STUDY DESIGN: This is a retrospective review of prospective multicenter cervical deformity (CD) database. OBJECTIVE: Assess the impact of complication type and Clavien complication (Cc) grade on clinical outcomes of surgical CD patients BACKGROUND:: Valida ... Full text Open Access Link to item Cite

Adolescent Idiopathic Scoliosis Care in an Underserved Inner-City Population: Screening, Bracing, and Patient- and Parent-Reported Outcomes.

Journal Article Spine Deform · July 2019 STUDY DESIGN: Retrospective review of a prospectively collected database. OBJECTIVES: This preliminary investigation sought to identify the quality of care adolescent idiopathic scoliosis (AIS) patients from our large, underserved community had received be ... Full text Link to item Cite

Recovery Kinetics: Comparison of Patients Undergoing Primary or Revision Procedures for Adult Cervical Deformity Using a Novel Area Under the Curve Methodology.

Journal Article Neurosurgery · July 1, 2019 BACKGROUND: Limited data are available to objectively define what constitutes a "good" versus a "bad" recovery for operative cervical deformity (CD) patients. Furthermore, the recovery patterns of primary versus revision procedures for CD is poorly underst ... Full text Open Access Link to item Cite

The Impact of Osteotomy Grade and Location on Regional and Global Alignment Following Cervical Deformity Surgery

Conference JOURNAL OF NEUROSURGERY · July 1, 2019 Link to item Cite

The Impact of Different Intraoperative Fluid Administration Strategies on Postoperative Extubation Following Multilevel Thoracic and Lumbar Spine Surgery: A Propensity Score Matched Analysis.

Journal Article Neurosurgery · July 1, 2019 BACKGROUND: Patients undergoing multilevel spine surgery are at risk for delayed extubation. OBJECTIVE: To evaluate the impact of type and volume of intraoperative fluids administered during multilevel thoracic and/or lumbar spine surgery on postoperative ... Full text Link to item Cite

Occipitocervical Osteotomies and Interfacet Grafts for Reduction of Occipitocervical Kyphosis and Basilar Invagination.

Journal Article World Neurosurg · July 2019 BACKGROUND: Occipitocervical congenital pathologies involving instability of the atlantoaxial joint and basilar invagination are challenging to treat owing to the complex anatomy involving neurovascular structures at the skull base and the high-risk nature ... Full text Link to item Cite

Preoperative Assessment of Bone Quality in Spine Deformity Surgery: Correlation With Clinical Practice and Published Recommendations.

Journal Article Spine (Phila Pa 1976) · June 15, 2019 STUDY DESIGN: Retrospective cohort study. OBJECTIVE: The goals of this study were to (A) evaluate preoperative bone quality assessment and intervention practice over time and (B) review the current evidence for bone evaluation in spine fusion surgery. SUMM ... Full text Link to item Cite

Analysis of Complications with Staged Surgery for Less Invasive Treatment of Adult Spinal Deformity.

Journal Article World Neurosurg · June 2019 BACKGROUND: Spinal deformity surgery is often invasive and lengthy. Staging surgery over separate operative days may reduce complications. Staging is often used in minimally invasive treatment of adult spinal deformity (ASD). OBJECTIVE: To investigate the ... Full text Link to item Cite

Limited morbidity and possible radiographic benefit of C2 vs. subaxial cervical upper-most instrumented vertebrae.

Journal Article J Spine Surg · June 2019 BACKGROUND: The study aims to evaluate differences in alignment and clinical outcomes between surgical cervical deformity (CD) patients with a subaxial upper-most instrumented vertebra (UIV) and patients with a UIV at C2. Use of CD-corrective instrumentati ... Full text Open Access Link to item Cite

Suboptimal Age-Adjusted Lumbo-Pelvic Mismatch Predicts Negative Cervical-Thoracic Compensation in Obese Patients.

Journal Article Int J Spine Surg · June 2019 BACKGROUND: Given the paucity of literature regarding compensatory mechanisms used by obese patients with sagittal malalignment, it is necessary to gain a better understanding of the effects of obesity on compensation after comparing the degree of malalign ... Full text Link to item Cite

Effect of Obesity on Radiographic Alignment and Short-Term Complications After Surgical Treatment of Adult Cervical Deformity.

Journal Article World Neurosurg · May 2019 OBJECTIVE: We investigated the 30-day complication incidence and 1-year radiographic correction in obese patients undergoing surgical treatment of cervical deformity. METHODS: The patients were stratified according to World Health Organization's definition ... Full text Open Access Link to item Cite

Comparison of Best Versus Worst Clinical Outcomes for Adult Cervical Deformity Surgery.

Journal Article Global Spine J · May 2019 STUDY DESIGN: Retrospective cohort study. OBJECTIVE: Factors that predict outcomes for adult cervical spine deformity (ACSD) have not been well defined. To compare ACSD patients with best versus worst outcomes. METHODS: This study was based on a prospectiv ... Full text Open Access Link to item Cite

Evolution in Surgical Approach, Complications, and Outcomes in an Adult Spinal Deformity Surgery Multicenter Study Group Patient Population.

Journal Article Spine Deform · May 2019 STUDY DESIGN: Retrospective review of a prospectively collected multicenter database. OBJECTIVES: To evaluate the evolution of surgical treatment strategies, complications, and patient-reported outcomes for adult spinal deformity (ASD) patients. ASD surger ... Full text Open Access Link to item Cite

Comparative Analysis of Two Transforaminal Lumbar Interbody Fusion Techniques: Open TLIF Versus Wiltse MIS TLIF.

Journal Article Spine (Phila Pa 1976) · May 1, 2019 STUDY DESIGN: A retrospective cohort study at a single institution. OBJECTIVE: The aim of this study was to analyze the perioperative and postoperative outcomes of patients who underwent open transforaminal lumbar interbody fusion (O-TLIF) and bilateral mi ... Full text Link to item Cite

Full-Body Radiographic Analysis of Postoperative Deviations From Age-Adjusted Alignment Goals in Adult Spinal Deformity Correction and Related Compensatory Recruitment.

Journal Article Int J Spine Surg · April 2019 BACKGROUND: Full-body stereographs for adult spinal deformity (ASD) have enhanced global deformity and lower-limb compensation associations. The advent of age-adjusted goals for classic ASD parameters (sagittal vertical axis, pelvic tilt, spino-pelvic mism ... Full text Link to item Cite

Impact of presenting patient characteristics on surgical complications and morbidity in early onset scoliosis.

Journal Article J Clin Neurosci · April 2019 This study sought to assess comorbidity profiles unique to early-onset-scoliosis (EOS) patients by employing cluster analytics and to determine the influence of isolated comorbidity clusters on perioperative complications, morbidity and mortality using a h ... Full text Link to item Cite

Measurement of Spinopelvic Angles on Prone Intraoperative Long-Cassette Lateral Radiographs Predicts Postoperative Standing Global Alignment in Adult Spinal Deformity Surgery.

Journal Article Spine Deform · March 2019 STUDY DESIGN: Retrospective review from a single institution. OBJECTIVES: To evaluate intraoperative T1-pelvic angle (TPA), T4PA, and T9PA as predictors of postoperative global alignment after adult spinal deformity (ASD) surgery. SUMMARY OF BACKGROUND DAT ... Full text Link to item Cite

Technical nuances of percutaneous sacroiliac joint fixation: A cadaveric study.

Journal Article J Clin Neurosci · March 2019 Sacroiliac (SI) joint can produce debilitating lower back pain with radiation to groin, buttocks, and lower extremities. SI joint dysfunction poses a clinical challenge to the spine surgeons. Studies entailing surgical arthrodesis utilizing Titanium implan ... Full text Link to item Cite

Decreased rates of 30-day perioperative complications following ASD-corrective surgery: A modified Clavien analysis of 3300 patients from 2010 to 2014.

Journal Article J Clin Neurosci · March 2019 The Clavien-Dindo grading allows for broad comparison of perioperative surgical complications, and a temporal analysis of complications following ASD-corrective surgery. NSQIP database was utilized from 2010 to 2014 to isolate patients. Complications were ... Full text Link to item Cite

Bundled payments in spine surgery

Journal Article Seminars in Spine Surgery · March 1, 2019 Interest in the application of bundled payments to the field of spine surgery continues to grow. There may be great potential for cost-savings for spinal procedures under bundled payments. However, challenges such as heterogeneity of DRGs, complex procedur ... Full text Cite

Improvement in Back and Leg Pain and Disability Following Adult Spinal Deformity Surgery: Study of 324 Patients With 2-year Follow-up and the Impact of Surgery on Patient-reported Outcomes.

Journal Article Spine (Phila Pa 1976) · February 15, 2019 STUDY DESIGN: A retrospective review of a prospective, multicenter adult spinal deformity (ASD) database. OBJECTIVE: Our objective was to quantify the change in disability reported for patients with radiculopathy as compared with patients with back pain on ... Full text Link to item Cite

Development of a Modified Cervical Deformity Frailty Index: A Streamlined Clinical Tool for Preoperative Risk Stratification.

Journal Article Spine (Phila Pa 1976) · February 1, 2019 STUDY DESIGN: Retrospective review. OBJECTIVE: Develop a simplified frailty index for cervical deformity (CD) patients. SUMMARY OF BACKGROUND DATA: To improve preoperative risk stratification for surgical CD patients, a CD frailty index (CD-FI) incorporati ... Full text Open Access Link to item Cite

Weekend versus Weekday Admission in Spinal Cord Injury and Its Effect on Timing of Surgical Intervention.

Journal Article World Neurosurg · February 2019 OBJECTIVE: We sought to compare timing of intervention for patients with spinal cord injury (SCI) requiring surgical procedures during weekend versus weekday admissions. METHODS: The National Inpatient Sample database from 2012 to 2014 was queried to ident ... Full text Link to item Cite

The impact of osteotomy grade and location on regional and global alignment following cervical deformity surgery.

Journal Article J Craniovertebr Junction Spine · 2019 INTRODUCTION: Correction of cervical deformity (CD) often involves different types of osteotomies to address sagittal malalignment. This study assessed the relationship between osteotomy grade and vertebral level on alignment and clinical outcomes. METHODS ... Full text Open Access Link to item Cite

Global spinal deformity from the upper cervical perspective. What is "Abnormal" in the upper cervical spine?

Journal Article J Craniovertebr Junction Spine · 2019 HYPOTHESIS: Reciprocal changes in the upper cervical spine correlate with adult TL deformity modifiers. DESIGN: This was a retrospective review. INTRODUCTION: The upper cervical spine has remarkable adaptability to wide ranges of thoracolumbar (TL) deformi ... Full text Open Access Link to item Cite

Klippel-Feil: A constellation of diagnoses, a contemporary presentation, and recent national trends.

Journal Article J Craniovertebr Junction Spine · 2019 BACKGROUND: Klippel-Feil syndrome (KFS) includes craniocervical anomalies, low posterior hairline, and brevicollis, with limited cervical range of motion; however, there remains no consensus on inheritance pattern. This study defines incidence, characteriz ... Full text Link to item Cite

PROMIS physical health domain scores are related to cervical deformity severity.

Journal Article J Craniovertebr Junction Spine · 2019 INTRODUCTION: The aim of this study was to evaluate the association of available cervical alignment components through the Ames cervical deformity (CD) classification parameters with the Patient-Reported Outcomes Measurement Information System (PROMIS) phy ... Full text Link to item Cite

Traumatic Fracture of the Pediatric Cervical Spine: Etiology, Epidemiology, Concurrent Injuries, and an Analysis of Perioperative Outcomes Using the Kids' Inpatient Database.

Journal Article Int J Spine Surg · January 2019 BACKGROUND: The study aimed to characterize trends in incidence, etiology, fracture types, surgical procedures, complications, and concurrent injuries associated with traumatic pediatric cervical fracture using a nationwide database. METHODS: The Kids' Inp ... Full text Link to item Cite

Alcoholism as a predictor for pseudarthrosis in primary spine fusion: An analysis of risk factors and 30-day outcomes for 52,402 patients from 2005 to 2013.

Journal Article J Orthop · 2019 INTRODUCTION: This study assessed the incidence and risk factors for pseudarthrosis among primary spine fusion patients. METHODS: Retrospective review of ACS-NSQIP (2005-2013). Differences in comorbidities between spine fusion patients with and without pse ... Full text Link to item Cite

Predicting the occurrence of complications following corrective cervical deformity surgery: Analysis of a prospective multicenter database using predictive analytics.

Journal Article J Clin Neurosci · January 2019 We developed a predictive model to describe risk factors for complications in cervical deformity surgeries. Cervical deformity (CD) surgical patients are growing in number, but remain under-studied in the literature. CD was defined as at least one of the f ... Full text Link to item Cite

Pre-operative planning and rod customization may optimize post-operative alignment and mitigate development of malalignment in multi-segment posterior cervical decompression and fusion patients.

Journal Article J Clin Neurosci · January 2019 Patient-specific rods designed based on a particular pre-operative plan are a recent advancement to help achieve desired operative alignment goals. This study investigated the role of pre-operative planning and patient-specific rods on post-operative align ... Full text Link to item Cite

Trends in Treatment of Scheuermann Kyphosis: A Study of 1,070 Cases From 2003 to 2012.

Journal Article Spine Deform · January 2019 STUDY DESIGN: Retrospective review of KID Inpatient Database (KID) from 2003, 2006, 2009, and 2012. OBJECTIVES: The aim of this study was to evaluate the impact of advances in spinal surgery on patient outcomes in the treatment of Scheuermann kyphosis (SK) ... Full text Link to item Cite

Predictive model for distal junctional kyphosis after cervical deformity surgery.

Journal Article Spine J · December 2018 BACKGROUND CONTEXT: Distal junctional kyphosis (DJK) is a primary concern of surgeons correcting cervical deformity. Identifying patients and procedures at higher risk of developing this condition is paramount in improving patient selection and care. PURPO ... Full text Open Access Link to item Cite

Analysis of Cervical Spine Injuries in Elderly Patients from 2001 to 2010 Using a Nationwide Database: Increasing Incidence, Overall Mortality, and Inpatient Hospital Charges.

Journal Article World Neurosurg · December 2018 BACKGROUND: Cervical spine (C-spine) injuries cause significant morbidity and mortality among elderly patients. Although the population of older-adults ≥65 years in the United States is expanding, estimates of the burden and outcome of C-spine injury are l ... Full text Link to item Cite

Chiari malformation clusters describe differing presence of concurrent anomalies based on Chiari type.

Journal Article J Clin Neurosci · December 2018 Chiari malformations are structural defects in the posterior fossa where the cerebellum displaces caudally into the foramen magnum and upper spinal canal. These malformations are classified by severity as Types 1-4, each presenting with different associate ... Full text Link to item Cite

Cervical Versus Thoracolumbar Spinal Deformities: A Comparison of Baseline Quality-of-Life Burden.

Journal Article Clin Spine Surg · December 2018 STUDY DESIGN: Retrospective analysis of 2 prospectively collected multicenter databases, one for cervical deformity (CD) and the other for general adult spinal deformity. OBJECTIVE: To investigate the relative quality-of-life and disability burden in patie ... Full text Open Access Link to item Cite

Prospective Multicenter Assessment of All-Cause Mortality Following Surgery for Adult Cervical Deformity.

Journal Article Neurosurgery · December 1, 2018 BACKGROUND: Surgical treatments for adult cervical spinal deformity (ACSD) are often complex and have high complication rates. OBJECTIVE: To assess all-cause mortality following ACSD surgery. METHODS: ACSD patients presenting for surgical treatment were id ... Full text Open Access Link to item Cite

National Trends in the Prevalence, Treatment, and Associated Spinal Diagnoses Among Pediatric Spondylolysis Patients.

Journal Article Bull Hosp Jt Dis (2013) · December 2018 INTRODUCTION: Spondylolysis is an increasingly common diagnoses for young individuals and presents with a wide range of pathological and clinical findings. Most patients are treated conservatively, and surgery is reserved for severe cases. This is a popula ... Link to item Cite

Orthobiologics A Comprehensive Review of the Current Evidence and Use in Orthopedic Subspecialties.

Journal Article Bull Hosp Jt Dis (2013) · December 2018 Orthobiologics are organic and synthetic materials that are used in and outside of the operating room to augment both bone and soft tissue healing. The orthobiologics portfolio has vastly expanded over the years, and it has become imperative for orthopedic ... Link to item Cite

Development of New-Onset Cervical Deformity in Nonoperative Adult Spinal Deformity Patients With 2-Year Follow-Up.

Journal Article Int J Spine Surg · December 2018 PURPOSE: Evaluate the presence of new-onset cervical deformity (CD) in nonoperative adult spinal deformity (ASD) patients with extended follow-up, with consideration for predictors, prevalence, and impact on patient-reported outcomes. METHODS: Retrospectiv ... Full text Link to item Cite

Vertebral Osteomyelitis: A Comparison of Associated Outcomes in Early Versus Delayed Surgical Treatment.

Journal Article Int J Spine Surg · December 2018 BACKGROUND: The recommended timing of surgical intervention for vertebral osteomyelitis (VO) is controversial; however, most studies are not sufficiently powered. Our goal was to investigate the associated effects of delaying surgery in VO patients on in-h ... Full text Link to item Cite

Prior bariatric surgery lowers complication rates following spine surgery in obese patients.

Journal Article Acta Neurochir (Wien) · December 2018 BACKGROUND: Bariatric surgery (BS) is an increasingly common treatment for morbid obesity that has the potential to effect bone and mineral metabolism. The effect of prior BS on spine surgery outcomes has not been well established. The aim of this study wa ... Full text Link to item Cite

Fatty Infiltration of Cervical Spine Extensor Musculature: Is there a Relationship With Cervical Sagittal Balance?

Journal Article Clin Spine Surg · December 2018 STUDY DESIGN: This is a retrospective review of a single surgeon cervical deformity (CD) database. OBJECTIVE: Quantitatively describe the cervical extensor musculature in a CD population, and delineate associations between posterior musculature atrophy and ... Full text Link to item Cite

The Influence of Body Mass Index on Achieving Age-Adjusted Alignment Goals in Adult Spinal Deformity Corrective Surgery with Full-Body Analysis at 1 Year.

Journal Article World Neurosurg · December 2018 BACKGROUND: The impact of obesity on global spinopelvic alignment is poorly understood. This study investigated the effect of body mass index on achieving alignment targets and compensation mechanisms after corrective surgery for adult spinal deformity (AS ... Full text Link to item Cite

Clinical Impact and Economic Burden of Hospital-Acquired Conditions Following Common Surgical Procedures.

Journal Article Spine (Phila Pa 1976) · November 15, 2018 STUDY DESIGN: Retrospective review of prospectively collected data. OBJECTIVE: To assess the clinical impact and economic burden of the three most common hospital-acquired conditions (HACs) that occur within 30-day postoperatively for all spine surgeries a ... Full text Link to item Cite

Identifying Thoracic Compensation and Predicting Reciprocal Thoracic Kyphosis and Proximal Junctional Kyphosis in Adult Spinal Deformity Surgery.

Journal Article Spine (Phila Pa 1976) · November 1, 2018 STUDY DESIGN: Retrospective analysis. OBJECTIVE: To define thoracic compensation and investigate its association with postoperative reciprocal thoracic kyphosis and proximal junctional kyphosis (PJK) SUMMARY OF BACKGROUND DATA.: Adult spinal deformity (ASD ... Full text Open Access Link to item Cite

Outcomes of Operative Treatment for Adult Cervical Deformity: A Prospective Multicenter Assessment With 1-Year Follow-up.

Journal Article Neurosurgery · November 1, 2018 BACKGROUND: Despite the potential for profound impact of adult cervical deformity (ACD) on function and health-related quality of life (HRQOL), there are few high-quality studies that assess outcomes of surgical treatment for these patients. OBJECTIVE: To ... Full text Open Access Link to item Cite

Development of a validated computer-based preoperative predictive model for pseudarthrosis with 91% accuracy in 336 adult spinal deformity patients.

Journal Article Neurosurg Focus · November 1, 2018 OBJECTIVEPseudarthrosis can occur following adult spinal deformity (ASD) surgery and can lead to instrumentation failure, recurrent pain, and ultimately revision surgery. In addition, it is one of the most expensive complications of ASD surgery. Risk facto ... Full text Open Access Link to item Cite

The Impact of Comorbid Mental Health Disorders on Complications Following Cervical Spine Surgery With Minimum 2-Year Surveillance.

Journal Article Spine (Phila Pa 1976) · November 1, 2018 STUDY DESIGN: Retrospective analysis. OBJECTIVE: To improve understanding of the impact of comorbid mental health disorders (MHDs) on long-term outcomes following cervical spinal fusion in cervical radiculopathy (CR) or cervical myelopathy (CM) patients. S ... Full text Link to item Cite

Clinical and radiographic presentation and treatment of patients with cervical deformity secondary to thoracolumbar proximal junctional kyphosis are distinct despite achieving similar outcomes: Analysis of 123 prospective CD cases.

Journal Article J Clin Neurosci · October 2018 CD development secondary to PJK was recently documented in adult spinal deformity patients after surgical correction for thoracolumbar ASD. This study analyzes surgical management of patients with CD secondary to proximal junctional kyphosis (PJK) versus p ... Full text Open Access Link to item Cite

Arm Pain Versus Neck Pain: A Novel Ratio as a Predictor of Post-Operative Clinical Outcomes in Cervical Radiculopathy Patients.

Journal Article Int J Spine Surg · October 2018 BACKGROUND: Informed patient selection and counseling is key in improving surgical outcomes. Understanding the impact that certain baseline variables can have on postoperative outcomes is essential in optimizing treatment for certain symptoms, such as radi ... Full text Link to item Cite

Primary Drivers of Adult Cervical Deformity: Prevalence, Variations in Presentation, and Effect of Surgical Treatment Strategies on Early Postoperative Alignment.

Journal Article Neurosurgery · October 1, 2018 BACKGROUND: Primary drivers (PDs) of adult cervical deformity (ACD) have not been described in relation to pre- and early postoperative alignment or degree of correction. OBJECTIVE: To define the PDs of ACD to understand the impact of driver region on glob ... Full text Open Access Link to item Cite

Recovery Kinetics of Radiographic and Implant-Related Revision Patients Following Adult Spinal Deformity Surgery.

Journal Article Neurosurgery · October 1, 2018 BACKGROUND: Prior studies have observed similar health-related quality of life (HRQL) in revisions and nonrevision (NR) patients following adult spinal deformity (ASD) correction. However, a novel comparison approach may allow better comparisons in spine o ... Full text Link to item Cite

Cervical Alignment Changes in Patients Developing Proximal Junctional Kyphosis Following Surgical Correction of Adult Spinal Deformity.

Journal Article Neurosurgery · October 1, 2018 BACKGROUND: Proximal junctional kyphosis (PJK) following adult spinal deformity (ASD) surgery is a well-documented complication, but associations between radiographic PJK and cervical malalignment onset remain unexplored. OBJECTIVE: To study cervical malal ... Full text Link to item Cite

Rates of Mortality in Lumbar Spine Surgery and Factors Associated With Its Occurrence Over a 10-Year Period: A Study of 803,949 Patients in the Nationwide Inpatient Sample.

Journal Article Int J Spine Surg · October 2018 BACKGROUND: The rate of mortality in surgical procedures involving the lumbar spine has historically been low, and as a result, there has been difficulty providing accurate quantitative mortality rates to patients in the preoperative planning phase. Awaren ... Full text Link to item Cite

Predictors of adverse discharge disposition in adult spinal deformity and associated costs.

Journal Article Spine J · October 2018 BACKGROUND CONTEXT: With advances in the understanding of adult spinal deformity (ASD), more complex osteotomy and fusion techniques are being implemented with increasing frequency. Patients undergoing ASD corrections infrequently require extended acute ca ... Full text Link to item Cite

Rod Fracture After Apparently Solid Radiographic Fusion in Adult Spinal Deformity Patients.

Journal Article World Neurosurg · September 2018 BACKGROUND: Rod fracture occurs with delayed fusion or pseudarthrosis after adult spinal deformity (ASD) surgery. Rod fracture after apparent radiographic fusion has not been previously investigated. METHODS: Patients with ASD in a multicenter database wer ... Full text Open Access Link to item Cite

Cost-utility analysis of cervical deformity surgeries using 1-year outcome.

Journal Article Spine J · September 2018 BACKGROUND CONTEXT: Cost-utility analysis, a special case of cost-effectiveness analysis, estimates the ratio between the cost of an intervention to the benefit it produces in number of quality-adjusted life years. Cervical deformity correction has not bee ... Full text Open Access Link to item Cite

The Impact of Comorbid Mental Health Disorders on Complications Following Adult Spinal Deformity Surgery With Minimum 2-Year Surveillance.

Journal Article Spine (Phila Pa 1976) · September 1, 2018 STUDY DESIGN: Retrospective analysis. OBJECTIVE: To compare long-term outcomes between patients with and without mental health comorbidities who are undergoing surgery for adult spinal deformity (ASD). SUMMARY OF BACKGROUND DATA: Recent literature reveals ... Full text Link to item Cite

The Posterior Use of BMP-2 in Cervical Deformity Surgery Does Not Result in Increased Early Complications: A Prospective Multicenter Study.

Journal Article Global Spine J · September 2018 STUDY DESIGN: Prospective cohort study. OBJECTIVES: To describe the rate of short-term complications following the posterior use of recombinant human bone morphogenetic protein-2 (rhBMP-2) in cervical deformity (CD) surgery. METHODS: CD patients from 2013 ... Full text Link to item Cite

Incidence, trends, and associated risks of developmental hip dysplasia in patients with Early Onset and Adolescent Idiopathic Scoliosis.

Journal Article J Orthop · September 2018 INTRODUCTION: Early Onset and Adolescent Idiopathic Scoliosis, relatively common diagnoses (∼3% general population), have been associated with developmental dysplasia of the hip (DDH); a more rare spectrum of anomalies related to the abnormal development o ... Full text Link to item Cite

The Relationship Between Improvements in Myelopathy and Sagittal Realignment in Cervical Deformity Surgery Outcomes.

Journal Article Spine (Phila Pa 1976) · August 2018 STUDY DESIGN: Retrospective review. OBJECTIVE: Determine whether alignment or myelopathy improvement drives patient outcomes after cervical deformity (CD) corrective surgery. SUMMARY OF BACKGROUND DATA: CD correction involves radiographic malalignment corr ... Full text Open Access Link to item Cite

Treatment of atlantoaxial dislocations among patients with cervical osseous or vascular abnormalities utilizing hybrid techniques.

Journal Article J Neurosurg Spine · August 2018 OBJECTIVE Most cervical fixations for atlantoaxial dislocation (AAD) are bilateral and symmetric; however, in the setting of osseous and vascular deformity at the craniovertebral junction, asymmetrical and hybrid fixations are used as "salvage" techniques. ... Full text Link to item Cite

Cluster analysis describes constellations of cardiac anomalies presenting in spinal anomaly patients.

Journal Article Acta Neurochir (Wien) · August 2018 BACKGROUND: Cardiac anomalies are prevalent in patients with bony spinal anomalies. Prior studies evaluating incidences of bony congenital anomalies of the spine are limited. The Kids' Inpatient Database (KID) yields national discharge estimates of rare pe ... Full text Link to item Cite

The impact of mental health on patient-reported outcomes in cervical radiculopathy or myelopathy surgery.

Journal Article J Clin Neurosci · August 2018 Optimizing functional outcomes and disability status are essential for effective surgical treatment of cervical spine disorders. Mental impairment is common among patients with cervical spine complaints; yet little is known about the impact of baseline men ... Full text Link to item Cite

Body mass index predicts risk of complications in lumbar spine surgery based on surgical invasiveness.

Journal Article Spine J · July 2018 BACKGROUND CONTEXT: Obesity as a comorbidity in spine pathology may increase the risk of complications following surgical treatment. The body mass index (BMI) threshold at which obesity becomes clinically relevant, and the exact nature of that effect, rema ... Full text Link to item Cite

Analysis of Successful Versus Failed Radiographic Outcomes After Cervical Deformity Surgery.

Journal Article Spine (Phila Pa 1976) · July 1, 2018 STUDY DESIGN: Prospective multicenter cohort study with consecutive enrollment. OBJECTIVE: To evaluate preoperative alignment and surgical factors associated with suboptimal early postoperative radiographic outcomes after surgery for cervical deformity. SU ... Full text Open Access Link to item Cite

Predictive Modeling of Length of Hospital Stay Following Adult Spinal Deformity Correction: Analysis of 653 Patients with an Accuracy of 75% within 2 Days.

Journal Article World Neurosurg · July 2018 BACKGROUND: Length of stay (LOS) after surgery for adult spinal deformity (ASD) is a critical period that allows for optimal recovery. Predictive models that estimate LOS allow for stratification of high-risk patients. METHODS: A prospectively acquired mul ... Full text Open Access Link to item Cite

The use of patient-reported preoperative activity levels as a stratification tool for short-term and long-term outcomes in patients with adult spinal deformity.

Journal Article J Neurosurg Spine · July 2018 OBJECTIVE Given the recent shift in health care toward quality reporting requirements and a greater emphasis on a cost-quality approach, patient stratification with respect to long-term outcomes and the use of health care resources is of increasing value. ... Full text Link to item Cite

Epidemiology and national trends in prevalence and surgical management of metastatic spinal disease.

Journal Article J Clin Neurosci · July 2018 Surgical treatment for spinal metastasis has benefited from improvements in surgical techniques. However, the trends in treatment and outcomes for spinal metastasis surgery have not been well-established in a pediatric population. Patients <20 years old wi ... Full text Link to item Cite

Patient Profiling Can Identify Spondylolisthesis Patients at Risk for Conversion from Nonoperative to Operative Treatment.

Journal Article JB JS Open Access · June 28, 2018 BACKGROUND: Factors that are relevant to the decision regarding the use of surgical treatment for degenerative spondylolisthesis include disease-state severity and patient quality-of-life expectations. Some factors may not be easily appraised by the surgeo ... Full text Link to item Cite

Development and Validation of a Novel Adult Spinal Deformity Surgical Invasiveness Score: Analysis of 464 Patients.

Journal Article Neurosurgery · June 1, 2018 BACKGROUND: A surgical invasiveness index (SII) has been validated in general spine procedures but not adult spinal deformity (ASD). OBJECTIVE: To assess the ability of the SII to determine the invasiveness of ASD surgery and to create and validate a novel ... Full text Link to item Cite

Adult cervical deformity: radiographic and osteotomy classifications.

Journal Article Orthopade · June 2018 Cervical spine deformity represents a broad spectrum of pathologies that are both complex in etiology and debilitating towards quality of life for patients. Despite advances in the understanding of drivers and outcomes of cervical spine deformity, only one ... Full text Link to item Cite

Full-Body Analysis of Adult Spinal Deformity Patients' Age-Adjusted Alignment at 1 Year.

Journal Article World Neurosurg · June 2018 BACKGROUND: Previous studies have built a foundation for understanding compensation in patients with adult spinal deformity (ASD) by using full-body stereographic assessments. These mechanisms, in relation to age-adjusted alignment targets, have yet to be ... Full text Link to item Cite

Comparing psychological burden of orthopaedic diseases against medical conditions: Investigation on hospital course of hip, knee, and spine surgery patients.

Journal Article J Orthop · June 2018 Retrospective review of National Inpatient Sample (2000-2012) revealed that 31.28% of musculoskeletal (MSK) patients were found to have in-hospital psychological burdens (PBs). Adult spinal deformity (ASD), degenerative disc disease (DDD) and lung cancer p ... Full text Link to item Cite

The Lumbar Pelvic Angle, the Lumbar Component of the T1 Pelvic Angle, Correlates With HRQOL, PI-LL Mismatch, and it Predicts Global Alignment.

Journal Article Spine (Phila Pa 1976) · May 15, 2018 STUDY DESIGN: Prospective multicenter analysis of adult spinal deformity (ASD) patients. OBJECTIVE: The aim of this study was to introduce the lumbar pelvic angle (LPA), a novel parameter of spinopelvic alignment. SUMMARY OF BACKGROUND DATA: The T1 pelvic ... Full text Open Access Link to item Cite

Predictive Factors for Percutaneous Endoscopic Gastrostomy Tube Placement After Anterior Cervical Fusion.

Journal Article Global Spine J · May 2018 STUDY DESIGN: Retrospective case-control study. OBJECTIVES: To identify incidence and risk factors for percutaneous endoscopic gastrostomy (PEG) tube placement after anterior cervical fusion (ACF). METHODS: Adult patients undergoing elective ACF with/witho ... Full text Link to item Cite

Adverse Outcomes and Prediction of Cardiopulmonary Complications in Elective Spine Surgery.

Journal Article Global Spine J · May 2018 STUDY DESIGN: Retrospective cohort study. OBJECTIVES: The purpose of this study was to report incidence of cardiopulmonary complications in elective spine surgery, demographic and surgical predictors, and outcomes. Understanding the risks and predictors of ... Full text Link to item Cite

Trends in Nonoperative Treatment Modalities Prior to Cervical Surgery and Impact on Patient-Derived Outcomes: Two-Year Analysis of 1522 Patients From the Prospective Spine Treatment Outcome Study.

Journal Article Int J Spine Surg · April 2018 BACKGROUND: Effects of nonoperative treatments on surgical outcomes for patients who failed conservative management for cervical spine pathologies remain unknown. The objective is to describe conservative modality use in patients indicated for surgery for ... Full text Link to item Cite

Drivers of Cervical Deformity Have a Strong Influence on Achieving Optimal Radiographic and Clinical Outcomes at 1 Year After Cervical Deformity Surgery.

Journal Article World Neurosurg · April 2018 OBJECTIVE: The primary driver (PD) of cervical malalignment is important in characterizing cervical deformity (CD) and should be included in fusion to achieve alignment and quality-of-life goals. This study aims to define how PDs improve understanding of t ... Full text Open Access Link to item Cite

Rates of Mortality in Cervical Spine Surgical Procedures and Factors Associated With Its Occurrence Over a 10-Year Period: A Study of 342 477 Patients on the Nationwide Inpatient Sample.

Journal Article Int J Spine Surg · April 2018 BACKGROUND: Risk of death is important in counseling patients and improving quality of care. Incidence of death in cervical surgery is not firmly established due to its rarity and limited sample sizes, particularly in the context of different surgeries, de ... Full text Link to item Cite

Anterior and Lateral Lumbar Interbody Fusion With Supplemental Interspinous Process Fixation: Outcomes from a Multicenter, Prospective, Randomized, Controlled Study.

Journal Article Int J Spine Surg · April 2018 BACKGROUND: Rigid interspinous process fixation (ISPF) has received consideration as an efficient, minimally disruptive technique in supporting lumbar interbody fusion. However, despite advantageous intraoperative utility, limited evidence exists character ... Full text Link to item Cite

Response to a Letter to the Editor.

Journal Article J Pediatr Orthop · April 2018 Full text Link to item Cite

Comments

Journal Article Clinical Neurosurgery · March 1, 2018 Cite

Minimally Invasive Surgery (MIS) Approaches to Thoracolumbar Trauma.

Journal Article Bull Hosp Jt Dis (2013) · March 2018 Minimally invasive surgical (MIS) techniques offer promising improvements in the management of thoracolumbar trauma. Recent advances in MIS techniques and instrumentation for degenerative conditions have heralded a growing interest in employing these techn ... Link to item Cite

Characterizing Adult Cervical Deformity and Disability Based on Existing Cervical and Adult Deformity Classification Schemes at Presentation and Following Correction.

Journal Article Neurosurgery · February 1, 2018 BACKGROUND: Adult cervical deformity (ACD) classifications have not been implemented in a prospective ACD population and in conjunction with adult spinal deformity (ASD) classifications. OBJECTIVE: To characterize cervical deformity type and malalignment w ... Full text Open Access Link to item Cite

Prospective multi-centric evaluation of upper cervical and infra-cervical sagittal compensatory alignment in patients with adult cervical deformity.

Journal Article Eur Spine J · February 2018 PURPOSE: Reciprocal mechanisms for standing alignment have been described in thoraco-lumbar deformity but have not been studied in patients with primary cervical deformity (CD). The purpose of this study is to report upper- and infra-cervical sagittal comp ... Full text Open Access Link to item Cite

Patient profiling can identify patients with adult spinal deformity (ASD) at risk for conversion from nonoperative to surgical treatment: initial steps to reduce ineffective ASD management.

Journal Article Spine J · February 2018 BACKGROUND CONTEXT: Non-operative management is a common initial treatment for patients with adult spinal deformity (ASD) despite reported superiority of surgery with regard to outcomes. Ineffective medical care is a large source of resource drain on the h ... Full text Open Access Link to item Cite

Complications in Patients Undergoing Spinal Fusion After THA.

Journal Article Clin Orthop Relat Res · February 2018 INTRODUCTION: Patients with lumbar spine and hip disorders may, during the course of their treatment, undergo spinal fusion and THA. There is disagreement among prior studies regarding whether patients who undergo THA and spinal fusion are at increased ris ... Full text Link to item Cite

Psoas Morphology Differs between Supine and Sitting Magnetic Resonance Imaging Lumbar Spine: Implications for Lateral Lumbar Interbody Fusion.

Journal Article Asian Spine J · February 2018 STUDY DESIGN: Retrospective radiological review. PURPOSE: To quantify the effect of sitting vs supine lumbar spine magnetic resonance imaging (MRI) and change in anterior displacement of the psoas muscle from L1-L2 to L4-L5 discs. OVERVIEW OF LITERATURE: C ... Full text Link to item Cite

Design and Testing of 2 Novel Scores That Predict Global Sagittal Alignment Utilizing Cervical or Lumbar Plain Radiographs.

Conference Neurosurgery · February 1, 2018 BACKGROUND: Global sagittal deformity is an established cause of disability. However, measurements of sagittal alignment are often ignored when patients present with symptoms localizing to the cervical or lumbar spine. OBJECTIVE: To develop scoring scales ... Full text Link to item Cite

Traumatic Fractures of the Cervical Spine: Analysis of Changes in Incidence, Cause, Concurrent Injuries, and Complications Among 488,262 Patients from 2005 to 2013.

Journal Article World Neurosurg · February 2018 OBJECTIVE: The causes and epidemiology of traumatic cervical spine fracture have not been described with sufficient power or recency. Our goal is to describe demographics, incidence, cause, spinal cord injuries (SCIs), concurrent injuries, treatments, and ... Full text Link to item Cite

Predictors of Hospital Length of Stay and 30-Day Readmission in Cervical Spondylotic Myelopathy Patients: An Analysis of 3057 Patients Using the ACS-NSQIP Database.

Journal Article World Neurosurg · February 2018 BACKGROUND: Hospital length of stay (LOS), 30-day readmission rate, and other metrics are increasingly being used to evaluate quality of surgical care. The factors most relevant to cervical spondylotic myelopathy (CSM) are not yet established. OBJECTIVE: T ... Full text Link to item Cite

Lumbosacral stress and age may contribute to increased pelvic incidence: an analysis of 1625 adults.

Journal Article Eur Spine J · February 2018 PURPOSE: While there is a consensus that pelvic incidence (PI) remains constant after skeletal maturity, recent reports argue that PI increases after 60 years. This study aims to investigate whether PI increases with age and to determine potential associat ... Full text Link to item Cite

Three types of sagittal alignment regarding compensation in asymptomatic adults: the contribution of the spine and lower limbs.

Journal Article Eur Spine J · February 2018 PURPOSE: A comprehensive understanding of normative sagittal profile is necessary for adult spinal deformity. Roussouly described four sagittal alignment types based on sacral slope, lumbar lordosis, and location of lumbar apex. However, the lower limb, a ... Full text Link to item Cite

An Approach to Primary Tumors of the Upper Cervical Spine With Spondylectomy Using a Combined Approach: Our Experience With 19 Cases.

Journal Article Spine (Phila Pa 1976) · January 15, 2018 STUDY DESIGN: A retrospective study. OBJECTIVE: To examine the link between major complications, surgical techniques, and perioperative care in the intralesional spondylectomy of the upper cervical spine. SUMMARY OF BACKGROUND DATA: Spondylectomy has been ... Full text Link to item Cite

Two-Year Results of the Prospective Spine Treatment Outcomes Study: Analysis of Postoperative Clinical Outcomes Between Patients with and without a History of Previous Cervical Spine Surgery.

Journal Article World Neurosurg · January 2018 OBJECTIVE: History of previous cervical spine surgery is a frequently cited cause of worse outcomes after cervical spine surgery. The purpose of this study was to determine any differences in clinical outcomes after cervical spine surgery between patients ... Full text Link to item Cite

Inflammatory arthritides

Chapter · January 1, 2018 Inflammatory arthritides are the seronegative spondyloarthropathies and rheumatoid arthritis. The joints, bones, ligaments, tendons, and synovial tissues of the spine are affected by these disorders. Rheumatoid arthritis frequently affects the cervical spi ... Cite

Interpretation of Spinal Radiographic Parameters in Patients With Transitional Lumbosacral Vertebrae.

Journal Article Spine Deform · 2018 STUDY DESIGN: Retrospective radiographic review. OBJECTIVES: To understand the effect of variability in sacral endplate selection in transitional lumbosacral vertebrae (TLSV) and its impact on pelvic, regional, and global spinal alignment parameters. BACKG ... Full text Link to item Cite

Declining usage of rhBMP-2 in lumbar fusions for adult spinal deformity since 2008.

Journal Article J Clin Neurosci · January 2018 Full text Link to item Cite

Building Consensus: Development of Best Practice Guidelines on Wrong Level Surgery in Spinal Deformity.

Journal Article Spine Deform · 2018 STUDY DESIGN: Consensus-building using the Delphi and nominal group technique. OBJECTIVE: To establish best practice guidelines using formal techniques of consensus building among a group of experienced spinal deformity surgeons to avert wrong-level spinal ... Full text Link to item Cite

Despite worse baseline status depressed patients achieved outcomes similar to those in nondepressed patients after surgery for cervical deformity.

Journal Article Neurosurg Focus · December 2017 OBJECTIVE Depression and anxiety have been demonstrated to have negative impacts on outcomes after spine surgery. In patients with cervical deformity (CD), the psychological and physiological burdens of the disease may overlap without clear boundaries. Whi ... Full text Open Access Link to item Cite

Spinal stereotactic body radiotherapy in the United States: A decade-long nationwide analysis of patient demographics, practice patterns, and trends over time.

Journal Article J Clin Neurosci · December 2017 Nationwide utilization of spinal stereotactic body radiotherapy (SBRT) is not known; to address this void, the National Cancer Data Base (NCDB) from 2004 to 2013 was used for analysis. Spinal SBRT was defined as 1-5 fractions (14-32Gy) delivered to the cer ... Full text Link to item Cite

Incidence of perioperative medical complications and mortality among elderly patients undergoing surgery for spinal deformity: analysis of 3519 patients.

Journal Article J Neurosurg Spine · November 2017 OBJECTIVE Using 2 complication-reporting methods, the authors investigated the incidence of major medical complications and mortality in elderly patients after surgery for adult spinal deformity (ASD) during a 2-year follow-up period. METHODS The authors q ... Full text Open Access Link to item Cite

Comparative analysis of perioperative complications between a multicenter prospective cervical deformity database and the Nationwide Inpatient Sample database.

Journal Article Spine J · November 2017 BACKGROUND CONTEXT: Complication rates for adult cervical deformity are poorly characterized given the complexity and heterogeneity of cases. PURPOSE: To compare perioperative complication rates following adult cervical deformity corrective surgery between ... Full text Open Access Link to item Cite

A novel index for quantifying the risk of early complications for patients undergoing cervical spine surgeries.

Journal Article J Neurosurg Spine · November 2017 OBJECTIVE It is becoming increasingly necessary for surgeons to provide evidence supporting cost-effectiveness of surgical treatment for cervical spine pathology. Anticipating surgical risk is critical in accurately evaluating the risk/benefit balance of s ... Full text Link to item Cite

Radiological lumbar stenosis severity predicts worsening sagittal malalignment on full-body standing stereoradiographs.

Journal Article Spine J · November 2017 BACKGROUND CONTEXT: Patients with degenerative lumbar stenosis (DLS) adopt a forward flexed posture in an attempt to decompress neural elements. The relationship between sagittal alignment and severity of lumbar stenosis has not previously been studied. PU ... Full text Link to item Cite

Risk Factors for Reoperation in Patients Treated Surgically for Degenerative Spondylolisthesis: A Subanalysis of the 8-year Data From the SPORT Trial.

Journal Article Spine (Phila Pa 1976) · October 15, 2017 STUDY DESIGN: Retrospective analysis of prospective data from the degenerative spondylolisthesis (DS) arm of the Spine Patient Outcomes Research Trial. OBJECTIVE: The aim of this study was to identify risk factors for reoperation in patients treated surgic ... Full text Link to item Cite

Two-Year Results of the Prospective Spine Treatment Outcomes Study: An Analysis of Complication Rates, Predictors of Their Development, and Effect on Patient Derived Outcomes at 2 Years for Surgical Management of Cervical Spondylotic Myelopathy.

Journal Article World Neurosurg · October 2017 OBJECTIVES: To investigate the baseline patient characteristics, nonoperative modalities, surgical procedures, and complications rates of surgical cervical spondylotic myelopathy (CSM) patients. To evaluate risk factors for developing complications and com ... Full text Link to item Cite

The Fate of Patients with Adult Spinal Deformity Incurring Rod Fracture After Thoracolumbar Fusion.

Journal Article World Neurosurg · October 2017 OBJECTIVE: To report the outcome of adult spinal deformity (ASD) in patients with rod fracture (RF) after thoracolumbar fusion. METHODS: Retrospective review of prospective, multicenter database. Operative patients with ASD ≥18 years old with RF after ASD ... Full text Open Access Link to item Cite

Principal Radiographic Characteristics for Cervical Spinal Deformity: A Health-related Quality-of-life Analysis.

Journal Article Spine (Phila Pa 1976) · September 15, 2017 STUDY DESIGN: Retrospective study. OBJECTIVE: The aim of this study was to propose radiographic characteristics of patients with cervical disability and to investigate the relevant parameters when assessing cervical alignment. SUMMARY OF BACKGROUND DATA: A ... Full text Link to item Cite

Effect of liberal blood transfusion on clinical outcomes and cost in spine surgery patients.

Journal Article Spine J · September 2017 BACKGROUND CONTEXT: Blood transfusions in spine surgery are shown to be associated with increased patient morbidity. The association between transfusion performed using a liberal hemoglobin (Hb) trigger-defined as an intraoperative Hb level of ≥10 g/dL, a ... Full text Link to item Cite

Adult Spinal Deformity: National Trends in the Presentation, Treatment, and Perioperative Outcomes From 2003 to 2010.

Journal Article Spine Deform · September 2017 STUDY DESIGN: Retrospective review of a prospective database. OBJECTIVES: To investigate adult spinal deformity (ASD) surgery outcome trends on a nationwide scale using the Nationwide Inpatient Sample (NIS) from 2003 to 2010. METHODS: ASD patients ≥25 year ... Full text Link to item Cite

National Administrative Databases in Adult Spinal Deformity Surgery: A Cautionary Tale.

Journal Article Spine (Phila Pa 1976) · August 15, 2017 STUDY DESIGN: Comparison between national administrative databases and a prospective multicenter physician managed database. OBJECTIVES: This study aims to assess the applicability of National Administrative Databases (NADs) in adult spinal deformity (ASD) ... Full text Link to item Cite

Morbidity of Adult Spinal Deformity Surgery in Elderly Has Declined Over Time.

Journal Article Spine (Phila Pa 1976) · August 15, 2017 STUDY DESIGN: A retrospective review of a prospectively collected database, the Nationwide Inpatient Sample (NIS), years 2003 to 2012. OBJECTIVES: The aim of this study was to examine trends in the management of scoliosis in elderly (age >75 yrs) patients ... Full text Link to item Cite

Novel Angular Measures of Cervical Deformity Account for Upper Cervical Compensation and Sagittal Alignment.

Journal Article Clin Spine Surg · August 2017 STUDY DESIGN: This is a retrospective review of a prospective multicenter database. OBJECTIVE: This study introduces 2 new cervical alignment measures accounting for both cervical deformity (CD) and upper cervical compensation. SUMMARY OF BACKGROUND DATA: ... Full text Open Access Link to item Cite

A Novel Tool for Deformity Surgery Planning: Determining the Magnitude of Lordotic Correction Required to Achieve a Desired Sagittal Vertical Axis.

Journal Article World Neurosurg · August 2017 OBJECTIVE: We sought to create a model capable of predicting the magnitude of pelvic incidence-lumbar lordosis (PI-LL) correction necessary to achieve a desired change in sagittal vertical axis (SVA). METHODS: A retrospective review was conducted of a pros ... Full text Open Access Link to item Cite

Three-column osteotomy for correction of cervical and cervicothoracic deformities: alignment changes and early complications in a multicenter prospective series of 23 patients.

Journal Article Eur Spine J · August 2017 PURPOSE: Three-column osteotomy (3CO), including pedicle subtraction osteotomy (PSO) and vertebral column resection (VCR), can provide powerful alignment correction for adult cervical deformity (ACD). Our objective was to assess alignment changes and early ... Full text Open Access Link to item Cite

Incidence, Risk Factors, and Mortality of Reintubation in Adult Spinal Deformity Surgery.

Journal Article Clin Spine Surg · August 2017 STUDY DESIGN: Retrospective study of an administrative database. OBJECTIVE: The objective was to investigate the incidence, risk factors, and mortality rate of reintubation after adult spinal deformity (ASD) surgery. BACKGROUND DATA: There are limited data ... Full text Link to item Cite

Cervical spondylotic myelopathy: National trends in the treatment and peri-operative outcomes over 10years.

Journal Article J Clin Neurosci · August 2017 BACKGROUND: Recent studies show increases in cervical spine surgery prevalence and cervical spondylotic myelopathy (CSM) diagnoses in the US. However, few studies have examined outcomes for CSM surgical management, particularly on a nationwide scale. OBJEC ... Full text Link to item Cite

Outcomes of open staged corrective surgery in the setting of adult spinal deformity.

Journal Article Spine J · August 2017 BACKGROUND CONTEXT: Adult spinal deformity (ASD) represents a constellation of complex malalignments affecting the spinal column. Corrective surgical procedures aimed at improving ASD can be equally challenging, and commonly require multiple index procedur ... Full text Link to item Cite

Bone morphogenetic protein in adult spinal deformity surgery: a meta-analysis.

Journal Article Eur Spine J · August 2017 INTRODUCTION: Since its introduction BMP has been utilized in populations with higher rates of malunion, such as adult spinal deformity (ASD) patients. Contradictory conclusions exist in spinal literature regarding the safety and efficacy of the use of BMP ... Full text Link to item Cite

Novel Index to Quantify the Risk of Surgery in the Setting of Adult Spinal Deformity: A Study on 10,912 Patients From the Nationwide Inpatient Sample.

Journal Article Clin Spine Surg · August 2017 STUDY DESIGN: Retrospective review of the Nationwide Inpatient Sample from 2001 to 2010, a prospectively collected national database. OBJECTIVE: Structure an index to quantify adult spinal deformity (ASD) surgical risk based on risk factors for medical com ... Full text Link to item Cite

Comparative Analysis of Perioperative Outcomes Using Nationally Derived Hospital Discharge Data Relative to a Prospective Multicenter Surgical Database of Adult Spinal Deformity Surgery.

Journal Article Spine (Phila Pa 1976) · August 1, 2017 STUDY DESIGN: Retrospective analysis of three prospectively collected databases. OBJECTIVE: To compare perioperative outcomes in Adult Spinal Deformity (ASD) surgeries in a surgeon-run (SR-ASD) and two national databases: the Nationwide Inpatient Sample (N ... Full text Link to item Cite

Adult Scoliosis Deformity Surgery: Comparison of Outcomes Between One Versus Two Attending Surgeons.

Journal Article Spine (Phila Pa 1976) · July 1, 2017 STUDY DESIGN: Retrospective review of prospectively collected data. OBJECTIVE: Assess outcomes of adult spinal deformity (ASD) surgery performed by one versus two attending surgeons. SUMMARY OF BACKGROUND DATA: ASD centers have developed two attending team ... Full text Open Access Link to item Cite

Trends in the presentation, surgical treatment, and outcomes of tethered cord syndrome: A nationwide study from 2001 to 2010.

Journal Article J Clin Neurosci · July 2017 OBJECTIVE: This is a nationwide query into surgical management techniques for tethered cord syndrome, focusing on patient demographic, hospital characteristics, and treatment outcomes. Our hypothesis is that detethering vs. fusion for TCS results in differ ... Full text Link to item Cite

The Interobserver and Intraobserver Reliability of the Sanders Classification Versus the Risser Stage.

Journal Article J Pediatr Orthop · June 2017 BACKGROUND: Estimation of skeletal maturity, classically performed using Risser sign, plays a crucial role in the treatment of AIS. Recent data, however, has shown the simplified Tanner-Whitehouse (Sanders) classification, based on an anteriorposterior (AP ... Full text Link to item Cite

Thoracolumbar Realignment Surgery Results in Simultaneous Reciprocal Changes in Lower Extremities and Cervical Spine.

Journal Article Spine (Phila Pa 1976) · June 1, 2017 STUDY DESIGN: A retrospective, clinical, and radiographic single-center study. OBJECTIVE: The aim of this study was to assess simultaneous cervical spine and lower extremity compensatory changes with changes in thoracolumbar spinal alignment. SUMMARY OF BA ... Full text Link to item Cite

Patient Satisfaction After Adult Spinal Deformity Surgery Does Not Strongly Correlate With Health-Related Quality of Life Scores, Radiographic Parameters, or Occurrence of Complications.

Journal Article Spine (Phila Pa 1976) · May 15, 2017 STUDY DESIGN: This is a multicenter retrospective review of prospectively collected cases. OBJECTIVE: Our objective was to evaluate the relationship between patient satisfaction, health-related quality of life (HRQoL) scores, complications, and radiographi ... Full text Open Access Link to item Cite

The Health Impact of Adult Cervical Deformity in Patients Presenting for Surgical Treatment: Comparison to United States Population Norms and Chronic Disease States Based on the EuroQuol-5 Dimensions Questionnaire.

Journal Article Neurosurgery · May 1, 2017 BACKGROUND: Although adult cervical spine deformity (ACSD) is associated with pain and disability, its health impact has not been quantified in comparison to other chronic diseases. OBJECTIVE: To perform a comparative analysis of the health impact of sympt ... Full text Open Access Link to item Cite

Full-Body Analysis of Age-Adjusted Alignment in Adult Spinal Deformity Patients and Lower-Limb Compensation.

Journal Article Spine (Phila Pa 1976) · May 1, 2017 STUDY DESIGN: Single-center retrospective review. OBJECTIVE: The present study evaluates the effect of increasing spinal deformity deviation from age-adjusted alignment ideals on lower extremity compensation. SUMMARY OF BACKGROUND DATA: Although current un ... Full text Link to item Cite

The impact of obesity on compensatory mechanisms in response to progressive sagittal malalignment.

Journal Article Spine J · May 2017 BACKGROUND CONTEXT: Obesity's impact on standing sagittal alignment remains poorly understood, especially with respect to the role of the lower limbs. Given energetic expenditure in standing, a complete understanding of compensation in obese patients with ... Full text Link to item Cite

Operative fusion of multilevel cervical spondylotic myelopathy: Impact of patient demographics.

Journal Article J Clin Neurosci · May 2017 Cervical spondylotic myelopathy (CSM) is the most common cause of spinal cord dysfunction in patients older than age 55, with operative management being a widely adopted approach. Previous work has shown that private insurance status, gender and patient ra ... Full text Link to item Cite

Spine trauma

Chapter · April 24, 2017 Full text Cite

Impact of Smoking on 30-day Morbidity and Mortality in Adult Spinal Deformity Surgery.

Journal Article Spine (Phila Pa 1976) · April 1, 2017 STUDY DESIGN: A retrospective cohort study of a prospectively collected surgical database. OBJECTIVE: The aim of this study was to investigate the effect of smoking on 30-day morbidity and mortality in patients undergoing surgery for adult spinal deformity ... Full text Link to item Cite

Does Myelopathy or Alignment Improvement Drive Acute Post-Operative Outcomes in Cervical Deformity Patients?

Conference JOURNAL OF NEUROSURGERY · April 1, 2017 Link to item Cite

Timing of Complications Occurring Within 30 Days After Adult Spinal Deformity Surgery.

Journal Article Spine Deform · March 2017 STUDY DESIGN: Cross-sectional study of a national surgical database. OBJECTIVE: To investigate the timing of complications after adult spinal deformity (ASD) surgery. SUMMARY OF BACKGROUND DATA: There is limited data on the range of days when complications ... Full text Link to item Cite

Impact of Race and Insurance Status on Surgical Approach for Cervical Spondylotic Myelopathy in the United States: A Population-Based Analysis.

Journal Article Spine (Phila Pa 1976) · February 2017 STUDY DESIGN: Retrospective cohort study. OBJECTIVE: The aim of the study was to assess factors potentially impacting the operative approach chosen for cervical spondylotic myelopathy (CSM) patients on a nationwide level. SUMMARY OF BACKGROUND DATA: CSM is ... Full text Link to item Cite

Inpatient versus Outpatient Anterior Cervical Discectomy and Fusion: A Perioperative Complication Analysis of 259,414 Patients From the Healthcare Cost and Utilization Project Databases.

Journal Article Int J Spine Surg · 2017 BACKGROUND: Anterior cervical discectomy and fusion (ACDF) is one of the most common operations utilized to address pathology of the cervical spine. Few reports have attempted to compare complications associated with inpatient versus outpatient ACDF. METHO ... Full text Link to item Cite

Outpatient Anterior Cervical Discectomy and Fusion: An Analysis of Readmissions from the New Jersey State Ambulatory Services Database.

Journal Article Int J Spine Surg · 2017 BACKGROUND: Anterior cervical discectomy and fusion (ACDF) performed as an outpatient has become increasingly common for treating cervical spine pathology. Few reports have attempted to assess readmissions following outpatient ACDF. This study was performe ... Full text Link to item Cite

Cervical Spondylotic Myelopathy A Review of Clinical Diagnosis and Treatment.

Journal Article Bull Hosp Jt Dis (2013) · January 2017 Cervical spondylotic myelopathy (CSM) is a functional disturbance in the spinal cord as a result of degenerative changes within the cervical spinal column. This review discusses the history of CSM and its diagnosis, including clinical presentation, physica ... Link to item Cite

Outpatient anterior cervical discectomy and fusion: A meta-analysis.

Journal Article J Clin Neurosci · December 2016 Anterior cervical discectomy and fusion (ACDF) performed as an outpatient has become increasingly common for treating cervical spine pathology, largely due to its cost savings compared with inpatient ACDF. Nearly all outpatient ACDF patient reports have or ... Full text Link to item Cite

Predictive Model for Cervical Alignment and Malalignment Following Surgical Correction of Adult Spinal Deformity.

Journal Article Spine (Phila Pa 1976) · September 15, 2016 STUDY DESIGN: Retrospective review of prospective multicenter database. OBJECTIVE: Use predictive modeling to identify patient characteristics, radiographic, and surgical variables that predict reaching an outcome threshold of suboptimal cervical alignment ... Full text Link to item Cite

Prolonged length of stay after posterior surgery for cervical spondylotic myelopathy in patients over 65years of age.

Journal Article J Clin Neurosci · September 2016 Prolonged length of stay (PLOS) has been associated with increased hospital resource utilization and worsened patient outcomes in multiple studies. In this study, we defined and identified factors associated with PLOS after posterior surgery for cervical s ... Full text Link to item Cite

Hospital Readmission Within 2 Years Following Adult Thoracolumbar Spinal Deformity Surgery: Prevalence, Predictors, and Effect on Patient-derived Outcome Measures.

Journal Article Spine (Phila Pa 1976) · September 2016 STUDY DESIGN: A retrospective review of prospective multicenter database. OBJECTIVE: The aim of this study was to identify factors influencing readmission, reoperation, and the impact on health-related quality of life outcomes (HRQoLs) in adult spinal defo ... Full text Open Access Link to item Cite

Prospective Multicenter Assessment of Early Complication Rates Associated With Adult Cervical Deformity Surgery in 78 Patients.

Journal Article Neurosurgery · September 2016 BACKGROUND: Few reports have focused on treatment of adult cervical deformity (ACD). OBJECTIVE: To present early complication rates associated with ACD surgery. METHODS: A prospective multicenter database of consecutive operative ACD patients was reviewed ... Full text Open Access Link to item Cite

166 Predictive Modeling of Length of Hospital Stay Following Adult Spinal Deformity Correction: Analysis of 653 Patients With an Accuracy of 75% Within 2 Days

Journal Article Neurosurgery · August 1, 2016 INTRODUCTION: The length of stay (LOS) following adult spinal deformity (ASD) surgery is a critical time period allowing for recovery to levels safe enough to return home or to rehabilitation. Thus, the goal is to minimize it for conserving hospital resour ... Full text Open Access Cite

A comparative analysis of the prevalence and characteristics of cervical malalignment in adults presenting with thoracolumbar spine deformity based on variations in treatment approach over 2 years.

Journal Article Eur Spine J · August 2016 PURPOSE: Characteristics specific to cervical deformity (CD) concomitant with adult thoracolumbar deformity (TLD) remains uncertain, particularly regarding treatment. This study identifies cervical malalignment prevalence following surgical and conservativ ... Full text Open Access Link to item Cite

Reoperation rates in minimally invasive, hybrid and open surgical treatment for adult spinal deformity with minimum 2-year follow-up.

Journal Article Eur Spine J · August 2016 INTRODUCTION: Minimally invasive surgical (MIS) techniques are gaining popularity in the treatment of adult spinal deformity (ASD). The premise is that MIS techniques will lead to equivalent outcomes and a reduction in perioperative complications when comp ... Full text Open Access Link to item Cite

Ratio of lumbar 3-column osteotomy closure: patient-specific deformity characteristics and level of resection impact correction of truncal versus pelvic compensation.

Journal Article Eur Spine J · August 2016 PURPOSE: The resection point of a lumbar three-column osteotomy (3CO) creates separation of the spino-pelvic complex. This study investigates the impact of patients' baseline deformity and level of 3CO resection on the distribution of correction between th ... Full text Link to item Cite

Assessment of Surgical Treatment Strategies for Moderate to Severe Cervical Spinal Deformity Reveals Marked Variation in Approaches, Osteotomies, and Fusion Levels.

Journal Article World Neurosurg · July 2016 OBJECTIVE: Although previous reports suggest that surgery can improve the pain and disability of cervical spinal deformity (CSD), techniques are not standardized. Our objective was to assess for consensus on recommended surgical plans for CSD treatment. ME ... Full text Open Access Link to item Cite

Inpatient morbidity and mortality after adult spinal deformity surgery in teaching versus nonteaching hospitals.

Journal Article J Neurosurg Spine · July 2016 OBJECTIVE The goal of this study was to compare inpatient morbidity and mortality after adult spinal deformity (ASD) surgery in teaching versus nonteaching hospitals in the US. METHODS The Nationwide Inpatient Sample was used to identify surgical patients ... Full text Link to item Cite

Predicting Extended Length of Hospital Stay in an Adult Spinal Deformity Surgical Population.

Journal Article Spine (Phila Pa 1976) · July 1, 2016 STUDY DESIGN: A retrospective review of a prospective multicenter database. OBJECTIVE: The aim of this study was to identify variables associated with extended length of stay (ExtLOS) and this impact on health-related quality of life (HRQoL) scores in adul ... Full text Link to item Cite

Surgical site infections following operative management of cervical spondylotic myelopathy: prevalence, predictors of occurence, and influence on peri-operative outcomes.

Journal Article Eur Spine J · June 2016 PURPOSE: Studies have examined infection rates following spine surgery and their relationship to post-operative complications and increased length of stay. Few studies, however, have investigated predictors of infection, specifically in the setting of oper ... Full text Link to item Cite

Atlantoaxial Rotatory Fixed Dislocation: Report on a Series of 32 Pediatric Cases.

Journal Article Spine (Phila Pa 1976) · June 2016 STUDY DESIGN: Retrospective case series of atlantoaxial rotatory fixed dislocation (AARFD). OBJECTIVE: To describe clinical features and the surgical treatment of AARFD. SUMMARY OF BACKGROUND DATA: The classification and treatment strategy for atlantoaxial ... Full text Link to item Cite

Risk Factors for Reoperation in Patients Treated Surgically for Lumbar Stenosis: A Subanalysis of the 8-year Data From the SPORT Trial.

Journal Article Spine (Phila Pa 1976) · May 2016 STUDY DESIGN: A retrospective subgroup analysis was performed on surgically treated patients from the lumbar spinal stenosis (SpS) arm of the Spine Patient Outcomes Research Trial (SPORT), randomized, and observational cohorts. OBJECTIVE: To identify risk ... Full text Link to item Cite

Predictors of Revision Surgical Procedure Excluding Wound Complications in Adult Spinal Deformity and Impact on Patient-Reported Outcomes and Satisfaction: A Two-Year Follow-up.

Journal Article J Bone Joint Surg Am · April 6, 2016 BACKGROUND: The surgical procedure to treat adult spinal deformity is challenging, with high rates of complications, including revision procedures performed to repair instrumentation failure or unplanned surgical complications. This study quantifies the in ... Full text Open Access Link to item Cite

"Reverse Bohlman" technique for the treatment of high grade spondylolisthesis in an adult population.

Journal Article J Orthop · March 2016 BACKGROUND/AIMS: Surgical techniques for effective high-grade spondylolisthesis (HGS) remain controversial. This study aims to evaluate radiographic/clinical outcomes in HGS patients treated using modified "Reverse Bohlman" (RB) technique. METHODS: Review ... Full text Link to item Cite

Predictors of inpatient morbidity and mortality in adult spinal deformity surgery.

Journal Article Eur Spine J · March 2016 PURPOSE: This nationwide study identifies ASD surgical risk factors for morbidity/mortality. METHODS: NIS discharges from 2001 to 2010 aged 25+ with scoliosis diagnoses, 4+ levels fused, and procedural codes for anterior and/or posterior thoracic and/or lu ... Full text Link to item Cite

Can a Minimal Clinically Important Difference Be Achieved in Elderly Patients with Adult Spinal Deformity Who Undergo Minimally Invasive Spinal Surgery?

Journal Article World Neurosurg · February 2016 BACKGROUND: Older age has been considered a relative contraindication to complex spinal procedures. Minimally invasive surgery (MIS) techniques to treat patients with adult spinal deformity (ASD) have emerged with the potential benefit of decreased approac ... Full text Open Access Link to item Cite

The Impact of Advanced Age on Peri-Operative Outcomes in the Surgical Treatment of Cervical Spondylotic Myelopathy: A Nationwide Study Between 2001 and 2010.

Journal Article Spine (Phila Pa 1976) · February 2016 STUDY DESIGN: Retrospective multicenter database review. OBJECTIVE: The aim of this study was to evaluate national postoperative outcomes and hospital characteristics trends from 2001 to 2010 for advanced age CSM patients. SUMMARY OF BACKGROUND DATA: Recen ... Full text Link to item Cite

The benefit of nonoperative treatment for adult spinal deformity: identifying predictors for reaching a minimal clinically important difference.

Journal Article Spine J · February 2016 BACKGROUND CONTEXT: Adult spinal deformity (ASD) patients may gain minimal clinically important difference (MCID) in one or more of the health-related quality-of-life instruments without surgical intervention. The present study identifies the baseline char ... Full text Link to item Cite

Impact of a Bundled Payment System on Resource Utilization During Spine Surgery.

Journal Article Int J Spine Surg · 2016 BACKGROUND: In a bundled payment system, a single payment covers all costs associated with a single episode of care. Spine surgery may be well suited for bundled payments because of clearly defined episodes of care, but the impact on current practice has n ... Full text Link to item Cite

Association between preoperative cervical sagittal deformity and inferior outcomes at 2-year follow-up in patients with adult thoracolumbar deformity: analysis of 182 patients.

Journal Article J Neurosurg Spine · January 2016 OBJECTIVE: A high prevalence of cervical deformity (CD) has been identified among adult patients with thoracolumbar spinal deformity undergoing surgical treatment. The clinical impact of this is uncertain. This study aimed to quantify the differences in pa ... Full text Open Access Link to item Cite

The effect of July admission on inpatient morbidity and mortality after adult spinal deformity surgery.

Journal Article Int J Spine Surg · 2016 BACKGROUND: Some studies have suggested patients who undergo surgery in July have worse outcomes compared to patients treated during other months. The purpose of this study is to compare inpatient morbidity and mortality among patients who underwent adult ... Full text Link to item Cite

Dedicated Spine Measurement Software Quantifies Key Spino-Pelvic Parameters More Reliably Than Traditional Picture Archiving and Communication Systems Tools.

Journal Article Spine (Phila Pa 1976) · January 2016 STUDY DESIGN: Measurement reliability study of adult spinal deformity (ASD) patient radiographs using intraclass correlation coefficients (ICC) and variance. OBJECTIVE: The aim of the study was to compare picture archiving and communication systems (PACS) ... Full text Link to item Cite

Selective versus nonselective thoracic fusion in Lenke 1C curves: a meta-analysis of baseline characteristics and postoperative outcomes.

Journal Article J Neurosurg Spine · December 2015 OBJECT: Lenke 1C curves are challenging to manage surgically due to the structural thoracic deformity and nonstructural lumbar curve. Selective thoracic fusion (STF) is considered the standard of care because it preserves motion of the lumbar segment, yet ... Full text Link to item Cite

Predictors of morbidity and mortality among patients with cervical spondylotic myelopathy treated surgically.

Journal Article Eur Spine J · December 2015 PURPOSE: The aim of this study is to report and quantify the associated factors for morbidity and mortality following surgical management of cervical spondylotic myelopathy (CSM). METHODS: The Nationwide Inpatient Sample (NIS) database was use to retrospec ... Full text Link to item Cite

Predictors of pain and disability outcomes in one thousand, one hundred and eight patients who underwent lumbar discectomy surgery.

Journal Article Int Orthop · November 2015 BACKGROUND: A key component toward improving surgical outcomes is proper patient selection. Improved selection can occur through exploration of prognostic studies that identify variables which are associated with good or poorer outcomes with a specific int ... Full text Link to item Cite

Primary Versus Revision Surgery in the Setting of Adult Spinal Deformity: A Nationwide Study on 10,912 Patients.

Journal Article Spine (Phila Pa 1976) · November 2015 STUDY DESIGN: Retrospective review of a prospectively collected database. OBJECTIVE: This study compares patient demographics, incidence of comorbidities, procedure-related complications, and mortality following primary versus revision adult spinal deformi ... Full text Link to item Cite

Risk Factors for Reoperation in Patients Treated Surgically for Intervertebral Disc Herniation: A Subanalysis of Eight-Year SPORT Data.

Journal Article J Bone Joint Surg Am · August 19, 2015 BACKGROUND: Lumbar discectomy and laminectomy in patients with intervertebral disc herniation (IDH) is common, with variable reported reoperation rates. Our study examined which baseline characteristics might be risk factors for reoperation and compared ou ... Full text Link to item Cite

Magnitude of preoperative cervical lordotic compensation and C2-T3 angle are correlated to increased risk of postoperative sagittal spinal pelvic malalignment in adult thoracolumbar deformity patients at 2-year follow-up.

Journal Article Spine J · August 1, 2015 BACKGROUND CONTEXT: Cervical deformity (CD) is prevalent among patients with adult spinal deformity (ASD). The effect of baseline cervical alignment on achieving optimal thoracolumbar alignment in ASD surgery is unclear. PURPOSE: This study assesses the re ... Full text Open Access Link to item Cite

Cervical compensatory alignment changes following correction of adult thoracic deformity: a multicenter experience in 57 patients with a 2-year follow-up.

Journal Article J Neurosurg Spine · June 2015 OBJECT Alignment changes in the cervical spine that occur following surgical correction for thoracic deformity remain poorly understood. The purpose of this study was to evaluate such changes in a cohort of adults with thoracic deformity treated surgically ... Full text Open Access Link to item Cite

Preoperative Cervical Hyperlordosis and C2–T3 Angle are Correlated to Increased Risk of Post-Op Sagittal Spinal Pelvic Malalignment in Adult Spinal Deformity Patients at 2-Year Follow-Up

Journal Article Global Spine Journal · May 1, 2015 Full text Open Access Cite

Craniocervical instability in the setting of os odontoideum: assessment of cause, presentation, and surgical outcomes in a series of 279 cases.

Journal Article Neurosurgery · May 2015 BACKGROUND: Our clinical understanding of os odontoideum (OO) remains incomplete. Congenital and traumatic causes have been proposed and advocated. Clinical presentations range from asymptomatic to axial pain to myelopathy or vertebral-basilar ischemia. A ... Full text Link to item Cite

Postoperative cervical deformity in 215 thoracolumbar patients with adult spinal deformity: prevalence, risk factors, and impact on patient-reported outcome and satisfaction at 2-year follow-up.

Journal Article Spine (Phila Pa 1976) · March 1, 2015 STUDY DESIGN: Retrospective review of prospective multicenter database. OBJECTIVE: Quantify the incidence of new onset cervical deformity (CD) after adult spinal deformity surgery of the thoracolumbar spine, identify predictors of development, and determin ... Full text Open Access Link to item Cite

Perioperative Risks Associated with Cervical Spondylotic Myelopathy Based on Surgical Treatment Strategies.

Journal Article Int J Spine Surg · 2015 BACKGROUND: Few studies have provided nationwide estimates of patient characteristics and procedure-related complications, or examined postsurgical outcomes for patients with cervical spondylotic myelopathy (CSM) comparatively with respect to surgical appr ... Full text Link to item Cite

Surgical Treatment Strategies for High-Grade Spondylolisthesis: A Systematic Review.

Journal Article Int J Spine Surg · 2015 BACKGROUND: HGS is a severe deformity most commonly affecting L5-S1 vertebral segment. Treatment available for HGS includes a range of different surgical options: full or partial reduction of translation and/or abnormal alignment and in situ fusion with or ... Full text Link to item Cite

Comparative analysis of patients with cauda equina syndrome versus an unaffected population undergoing spinal surgery.

Journal Article Spine (Phila Pa 1976) · March 15, 2014 STUDY DESIGN: Retrospective analysis. OBJECTIVE: To determine patient demographics, incidence of comorbidities, and procedure-related complications and identify risk factors associated with morbidity and mortality after spinal surgery for cauda equina synd ... Full text Link to item Cite

Effectiveness of postoperative wound drains in one- and two-level cervical spine fusions.

Journal Article Int J Spine Surg · 2014 BACKGROUND: Cervical drains have historically been used to avoid postoperative wound and respiratory complications such as excessive edema, hematoma, infection, re-intubation, delayed extubation, or respiratory distress. Recently, some surgeons have ceased ... Full text Link to item Cite

Feasibility of correction with instrumentation only in congenital scoliosis.

Journal Article Neurosurgery · January 2014 BACKGROUND: Although effective correction of deformity in congenital scoliosis can often be achieved with instrumentation only and without more invasive techniques such as hemivertebrectomy (HV), reports of the feasibility of correction with instrumentatio ... Full text Link to item Cite

Screw-related complications in the subaxial cervical spine with the use of lateral mass versus cervical pedicle screws: a systematic review.

Journal Article J Neurosurg Spine · November 2013 OBJECT: Lateral mass screws (LMS) have been used extensively with a low complication rate in the subaxial spine. Recently, cervical pedicle screws (CPS) have been introduced, and are thought to provide more optimal stabilization of the subaxial spine in ce ... Full text Link to item Cite

Does atlantoaxial dislocation influence the subaxial cervical spine?

Journal Article Eur Spine J · July 2013 INTRODUCTION: Previous studies have reported that the alignments of the occipital-cervical and subaxial spine were closely interrelated in asymptomatic individuals; however, none have focused on a population with atlantoaxial dislocation. MATERIAL AND METH ... Full text Link to item Cite

Combined ossification of the posterior longitudinal ligament at C2-3 and invagination of the posterior axis resulting in myelopathy.

Journal Article Eur Spine J · May 2013 PURPOSE: Spinal stenosis at the C2-3 segment is a rare occurrence, and when it occurs myelopathy infrequently results. Furthermore, only a handful of cases involving congenital abnormalities of the posterior arch of the axis have been described resulting i ... Full text Link to item Cite

The reversibility of swan neck deformity in chronic atlantoaxial dislocations.

Journal Article Spine (Phila Pa 1976) · April 1, 2013 STUDY DESIGN: Prospective case series and radiographical analysis. OBJECTIVE: This study aimed to characterize the changes in subaxial alignment after surgical correction of occipitoaxial kyphosis, establish normal parameters, and report on clinical outcom ... Full text Link to item Cite

Relationship between the alignment of the occipitoaxial and subaxial cervical spine in patients with congenital atlantoxial dislocations.

Journal Article J Spinal Disord Tech · February 2013 STUDY DESIGN: Prospective radiographic analysis. OBJECTIVE: This study aimed to characterize the relationship between the alignment of the occipitoaxial (OA) and the subaxial spine, establish normal parameters, and to determine the influence of upper cervi ... Full text Link to item Cite

Biomechanical evaluation of the X-Stop device for surgical treatment of lumbar spinal stenosis.

Journal Article J Spinal Disord Tech · October 2012 STUDY DESIGN: Controlled experimental study. OBJECTIVE: To evaluate the kinematical effects of X-Stop device on the spinal process at the operated and the adjacent segments before and after X-Stop surgeries during various weight-bearing postures in elderly ... Full text Link to item Cite

Surgical treatment of low-grade isthmic spondylolisthesis with transsacral fibular strut grafts.

Journal Article Neurosurgery · March 2012 BACKGROUND: The ideal surgical treatment for adult low-grade isthmic spondylolisthesis (ALIS) remains unknown. Isolated anterior and posterior procedures are popular but have resulted in equivocal outcomes, whereas combined anterior and posterior procedure ... Full text Link to item Cite

Comparative safety of simultaneous and staged anterior and posterior spinal surgery.

Journal Article Spine (Phila Pa 1976) · February 1, 2012 STUDY DESIGN: Analysis of population-based national hospital discharge data collected for the Nationwide Inpatient Sample. OBJECTIVE: To study perioperative outcomes of circumferential spine surgery performed on either the same or different days of the sam ... Full text Link to item Cite

Lumbar facet joint motion in patients with degenerative disc disease at affected and adjacent levels: an in vivo biomechanical study.

Journal Article Spine (Phila Pa 1976) · May 1, 2011 STUDY DESIGN: Controlled laboratory study. OBJECTIVE: To evaluate the effect of lumbar degenerative disc diseases (DDDs) on motion of the facet joints during functional weight-bearing activities. SUMMARY OF BACKGROUND DATA: It has been suggested that DDD a ... Full text Link to item Cite

How does lumbar degenerative disc disease affect the disc deformation at the cephalic levels in vivo?

Journal Article Spine (Phila Pa 1976) · April 20, 2011 STUDY DESIGN: Case-control study. OBJECTIVE: To evaluate the effect of lumbar degenerative disc disease (DDD) on the disc deformation at the adjacent level and at the level one above the adjacent level during end ranges of lumbar motion. SUMMARY OF BACKGRO ... Full text Link to item Cite

Segmental lumbar rotation in patients with discogenic low back pain during functional weight-bearing activities.

Journal Article J Bone Joint Surg Am · January 5, 2011 BACKGROUND: Little information is available on vertebral motion in patients with discogenic low back pain under physiological conditions. We previously validated a combined dual fluoroscopic and magnetic resonance imaging system to investigate in vivo lumb ... Full text Link to item Cite

Comparative in-hospital morbidity and mortality after revision versus primary thoracic and lumbar spine fusion.

Journal Article Spine J · October 2010 BACKGROUND CONTEXT: Despite increasing utilization of surgical spine fusions, a paucity of literature addressing perioperative complications after revision posterior spinal fusion (RPSF) versus primary posterior spine fusion (PPSF) of the thoracic and lumb ... Full text Link to item Cite

Complications associated with thoracic pedicle screws in spinal deformity.

Journal Article Eur Spine J · September 2010 Thoracic pedicle screws have superior anchoring strength compared with other available fixation techniques. However, these are not universally accepted in many developing countries because of the concerns regarding safety and complications. In addition, th ... Full text Link to item Cite

Pedicle versus laminar screws: what provides more suitable C2 fixation in congenital C2-3 fusion patients?

Journal Article Eur Spine J · August 2010 Patients with Klippel-Feil syndrome (KFS) have congenital fusions of at least 1 cervical motion segment, and often present with compensatory hypermobility or symptomatic stenosis of the cranio-vertebral junction which requires occipitocervical reconstructi ... Full text Link to item Cite

In-vivo motion characteristics of lumbar vertebrae in sagittal and transverse planes.

Journal Article J Biomech · July 20, 2010 Lumbar vertebrae are complicated in structure and function. The purpose of this study was to investigate the in-vivo motion characteristics of different portions of the lumbar vertebrae during functional activities. Motion of L2, L3 and L4 was reproduced u ... Full text Link to item Cite

Endoscopically assisted anterior release and reduction through anterolateral retropharyngeal approach for fixed atlantoaxial dislocation.

Journal Article Spine (Phila Pa 1976) · March 1, 2010 STUDY DESIGN: A prospective study. OBJECTIVE: To evaluate a novel technique involving an endoscopically assisted anterior release and reduction through an anterolateral retropharyngeal approach with minimum follow-up interval of 31 months. SUMMARY OF BACKG ... Full text Link to item Cite

In-vivo lumbar intervertebral disc geometric deformation during functional postures

Conference Proceedings of the ASME Summer Bioengineering Conference 2009, SBC2009 · December 1, 2009 Full text Cite

Adult scoliosis in patients over sixty-five years of age: outcomes of operative versus nonoperative treatment at a minimum two-year follow-up.

Journal Article Spine (Phila Pa 1976) · September 15, 2009 STUDY DESIGN: Retrospective case-control study. OBJECTIVE: The purpose of this study was to compare the self-reported outcomes between operatively and nonoperatively treated patients over the age of 65 with adult scoliosis, using 4 distinct self-assessment ... Full text Link to item Cite

Range of motion and orientation of the lumbar facet joints in vivo.

Journal Article Spine (Phila Pa 1976) · September 1, 2009 STUDY DESIGN: Controlled laboratory study. OBJECTIVE: To measure the range of motion of lumbar facet (zygapophyseal) joints in vivo during various functional weight-bearing positions of the upper body. SUMMARY OF BACKGROUND DATA: Determination of normal in ... Full text Link to item Cite

In vivo range of motion of the lumbar spinous processes.

Journal Article Eur Spine J · September 2009 The study design included an in vivo laboratory study. The objective of the study is to quantify the kinematics of the lumbar spinous processes in asymptomatic patients during un-restricted functional body movements with physiological weight bearing. Limit ... Full text Link to item Cite

Interobserver and intraobserver reliability of the cervicomedullary angle in a normal adult population.

Journal Article Eur Spine J · September 2009 CMA values have been effectively used to evaluate the amount of BI, the brainstem and medulla compression, and the amount of postoperative decompression. However, the reliability and reproducibility of this measurement have yet to be determined. In additio ... Full text Link to item Cite

Segmental in vivo vertebral motion during functional human lumbar spine activities.

Journal Article Eur Spine J · July 2009 Quantitative data on the range of in vivo vertebral motion is critical to enhance our understanding of spinal pathology and to improve the current surgical treatment methods for spinal diseases. Little data have been reported on the range of lumbar vertebr ... Full text Link to item Cite

Measurement of geometric deformation of lumbar intervertebral discs under in-vivo weightbearing condition.

Journal Article J Biomech · April 16, 2009 Quantitative data of spinal intervertebral disc deformation is instrumental for investigation of spinal disc pathology. In this study, we employed a combined dual fluoroscopic imaging system and the MR imaging technique to determine the lumbar disc deforma ... Full text Link to item Cite

Interobserver reliability and intraobserver reproducibility of powers ratio for assessment of atlanto-occipital junction: comparison of plain radiography and computed tomography.

Journal Article Eur Spine J · April 2009 Powers ratio, as assessed on plain radiographs or computed tomography (CT) images, appears to have clinical and prognostic value. To date, the validation of this assessment tool has been limited to a small number of observers at a single site. No study has ... Full text Link to item Cite

Measurement of vertebral kinematics using noninvasive image matching method-validation and application.

Journal Article Spine (Phila Pa 1976) · May 15, 2008 STUDY DESIGN: In vitro and in vivo laboratory study. OBJECTIVE: To validate a dual fluoroscopic image matching technique for measurement of in vivo spine kinematics. SUMMARY OF BACKGROUND DATA: Accurate knowledge of the spinal structural functions is criti ... Full text Link to item Cite

Total hip arthroplasty in the older population

Journal Article Geriatrics and Aging · September 1, 2006 Total hip arthroplasty (THA) is one of the most commonly performed and successful operations in orthopedic surgery in terms of clinical outcome, implant survivorship, and cost-effectiveness. The average age for a patient undergoing a THA is 66 years. As li ... Cite

Utilization of TXA in ASD Patients with Potential Contraindications for TXA does NOT Lead to Increased Thromboembolic Complications: Critical Information for Surgical and Anesthesia Teams

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