Journal ArticleAm J Sports Med · September 2004
BACKGROUND: Hyperconcavity of the vertebral endplates is a previously unreported radiologic phenomenon. PURPOSE: To analyze hyperconcavity of the vertebral endplates with expansion of the disk space in pre-National Football League lineman and to determine ...
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Journal ArticleArthroscopy · 2003
Ehlers-Danlos syndrome (EDS) is a heterogeneous collection of inherited connective tissue disorders characterized by hypermobility of the joints and hyperextensibility and fragility of the skin. For many patients, the hypermobile joints become problematic. ...
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Journal ArticleJ South Orthop Assoc · 2003
There is no consensus regarding surgical treatment for severely dislocated acromioclavicular joints. Although many treatments are suture-based, the suture materials and resulting suture-bone constructs have been subjected to limited systematic evaluation. ...
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Journal ArticleJ Shoulder Elbow Surg · 2003
This study compared shoulder radiographs of patients with a documented rotator cuff tear with those of asymptomatic age-matched controls. Radiographs of 40 subjects with documented rotator cuff tears were evaluated along with similar films of 84 asymptomat ...
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Journal ArticleArthroscopy · September 2002
PURPOSE: The objective of this investigation was to determine the effect of continuous cryotherapy on glenohumeral joint and subacromial space temperatures in the postoperative shoulder. TYPE OF STUDY: Prospective, randomized, and controlled clinical trial ...
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Journal ArticleMed Sci Sports Exerc · April 2002
PURPOSE: Strength athletes often employ the deadlift in their training or rehabilitation regimens. The purpose of this study was to compare muscle activity between sumo and conventional style deadlifts, and between belt and no-belt conditions. METHODS: Six ...
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Journal ArticleAm J Sports Med · 2002
BACKGROUND: Increased external rotation and decreased internal rotation have been noted to occur progressively in the throwing shoulder of baseball pitchers. HYPOTHESIS: Proximal remodeling of the humerus contributes to the rotational asymmetry between sho ...
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Journal ArticleArthroscopy · 2002
PURPOSE: This study evaluates the cosmetic appearance of the biceps muscle after arthroscopic, intra-articular biceps tenotomy versus tenodesis by presenting subjective outcome results in patients with refractive bicipital pain. TYPE OF STUDY: Retrospectiv ...
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Journal ArticleArthroscopy · 2002
The purpose of this technical note is to introduce the ramp test and explain this arthroscopic technique. The ramp test is used to test the integrity of the soft tissue restraint to intra-articular subluxation of the long head of the biceps tendon. Injury ...
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Journal ArticleAnesth Analg · September 2001
Providing intraarticular analgesia with a continuous infusion of local anesthetic via a disposable infusion pump has gained popularity. Despite the prevalence of this technique, data comparing this method of analgesia to conventional regional anesthesia ar ...
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Journal ArticleMed Sci Sports Exerc · August 2001
PURPOSE: Improper lifting techniques may increase injury risks and decrease performance. The aim of this study was to compare and contrast biomechanical parameters between sumo and conventional style deadlifts and between high- and low-skilled lifters who ...
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Journal ArticleOrthop Clin North Am · July 2001
Instability in the athlete presents a unique challenge to the orthopaedic surgeon. A spectrum of both static and dynamic pathophysiology, as well as gross and microscopic histopathology, contribute to this complex clinical continuum. Biomechanical studies ...
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Journal ArticleSkeletal Radiol · April 2001
OBJECTIVE: To determine whether MRI can identify instability of the long head of the biceps tendon (LBT) in the rotator interval. DESIGN AND PATIENTS: A retrospective review was carried out of 19 patients, all arthroscopically examined, nine of whom had su ...
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ConferenceAJR Am J Roentgenol · February 2001
OBJECTIVE: We describe the MR imaging findings of focal articular cartilage lesions of the superior humeral head and the clinical features in seven patients. CONCLUSION: Focal articular cartilage lesions of the superior humeral head are rare lesions that m ...
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Journal ArticleJ Shoulder Elbow Surg · 2001
This prospective, randomized investigation evaluated the efficacy of cryotherapy on subjective responses after both open and arthroscopic procedures on the shoulder. Seventy patients were randomly assigned to one of two study groups: (1) continuous cryothe ...
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Journal ArticleJ Shoulder Elbow Surg · 2001
Several studies have documented an association between the type III acromion and rotator cuff tears. However, controversy exists as to whether the shape of the acromion is an innate anatomic characteristic. The purpose of this study was to evaluate the pre ...
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Journal ArticleAm J Sports Med · 2001
In this investigation, we determined the patterns of valgus laxity and acquired valgus laxity of the ulnar collateral ligament in the elbows of collegiate athletes involved in overhead and nonoverhead sports. Acquired valgus laxity of the elbow is defined ...
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Journal ArticleJ Shoulder Elbow Surg · 2001
The purpose of this study was to delineate, through electromyographic analysis, the function of the long head of the biceps at the shoulder. Ten shoulders were examined with dynamic electromyography. The long head of the biceps was instrumented with thin w ...
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Journal ArticleAnesth Analg · December 2000
Continuous interscalene brachial plexus blockade traditionally requires a hospital stay for local anesthetic infusion, and achieving consistent catheter insertion may be difficult. Incorporating long-acting pain relief from a continuous peripheral nerve bl ...
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ConferenceSkeletal Radiol · December 2000
OBJECTIVE: The objectives of the current study were (1) to quantify the incidence of increased T2 signal in the distal clavicle and (2) to assess the clinical significance of this finding in patients with chronic acromioclavicular (AC) joint pain. DESIGN A ...
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Journal ArticleJ Bone Joint Surg Br · November 2000
Radiographs of the shoulders of 84 asymptomatic individuals aged between 40 and 83 years were evaluated to determine changes in 23 specific areas. Two fellowship-trained orthopaedic radiologists graded each area on a scale of 0 to II (normal 0, mild change ...
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Journal ArticleMed Sci Sports Exerc · July 2000
PURPOSE: Strength athletes often employ the deadlift in their training or rehabilitation regimens. The purpose of this study was to quantify kinematic and kinetic parameters by employing a three-dimensional analysis during sumo and conventional style deadl ...
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Journal ArticleFoot Ankle Int · June 2000
PURPOSE: Longitudinal split tears of the peroneus brevis tendon have been increasingly reported as a source of lateral ankle pain and disability. MR imaging is useful in identifying the appearance of longitudinal split tears of the peroneus brevis tendon t ...
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Journal ArticleJ Orthop Sports Phys Ther · April 2000
STUDY DESIGN: Randomized, single blind experimental design using electromyography to measure shoulder muscle activation in nonimpaired subjects. OBJECTIVES: To compare the muscle activation of rotator cuff and shoulder synergists during rehabilitation exer ...
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Journal ArticleSports Med · April 2000
The purpose of this review is to determine how throwing overweight and underweight baseballs affects baseball throwing velocity and accuracy. Two studies examined how a warm-up with overweight baseballs affected throwing velocity and accuracy of 5 oz regul ...
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Journal ArticleArthroscopy · April 2000
Recently, arthroscopic surgical techniques have been reported for release of glenohumeral capsular contractures in selected patients with frozen-shoulder syndrome. The purpose of the current study was to assess the anatomy and histology of the subscapulari ...
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Journal ArticleOperative Techniques in Sports Medicine · January 1, 2000
Instability in the athlete presents a unique challenge to the orthopaedic surgeon. A spectrum of both static and dynamic pathophysiology, as well as gross and microscopic histopathology, contribute to this complex clinical continuum. Biomechanical studies ...
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Journal ArticleSkeletal Radiol · January 2000
OBJECTIVE: To demonstrate the MR imaging findings of anterolateral impingement (ALI) of the ankle. DESIGN AND PATIENTS: Nine patients with a history of ankle inversion injury and chronic lateral ankle pain were imaged with MR imaging, and the findings corr ...
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Journal ArticleAm J Sports Med · 1999
The present study evaluates the inter- and intraobserver reproducibility of clinical examination of glenohumeral laxity in the unanesthetized shoulder. Forty-three asymptomatic Division I collegiate athletes underwent bilateral shoulder laxity examination ...
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Journal ArticleArthroscopy · 1999
Forty-three patients with a diagnosis of primary or secondary frozen shoulder who had symptoms for an average of 12 months and failed conservative treatment of at least 12 weeks of physical therapy, were treated with an arthrosopic capsular release. On com ...
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Journal ArticleAm J Sports Med · 1999
We evaluated the difficulty, accuracy, and safety of establishing a low anterior 5-o'clock portal for anterior capsulolabral repair in patients positioned in the beach-chair position during shoulder arthroscopy. An initial 5-o'clock portal was created usin ...
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Journal ArticleAnesth Analg · December 1998
UNLABELLED: The onset time and duration of action of ropivacaine during an interscalene block are not known. The potentially improved safety profile of ropivacaine may allow the use of higher concentrations to try and speed onset time. We compared bupivaca ...
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Journal ArticleMed Sci Sports Exerc · April 1998
The glenohumeral articulation maintains a fine balance between mobility and stability. In the throwing athlete, this balance is stressed from the repetitive microtrauma incurred to achieve peak performances. The presentation of shoulder pain in the throwin ...
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Journal ArticleMed Sci Sports Exerc · April 1998
The term "frozen shoulder" has been used to describe an array of clinical conditions. The authors consider a patient as meeting the criteria of primary or secondary frozen shoulder syndrome if he/she has a clinical history of worsening painful shoulder mot ...
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Journal ArticleRadiology · April 1998
Magnetic resonance (MR) imaging findings in three patients with acute onset of neuritic shoulder pain and weakness included high signal intensity in supra- and infraspinatus muscles (n = 2), partial involvement of infraspinatus muscle (n = 1) and of deltoi ...
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Journal ArticleAm J Sports Med · 1998
Nine athletes (seven football offensive linemen, one defensive lineman, and one lacrosse player) were found at arthroscopy to have posterior labral detachment from the glenoid. In our series, this lesion is specific to contact athletes who engage their opp ...
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Journal ArticleClin Sports Med · April 1997
Stress fractures are common overuse injuries attributed to the repetitive trauma associated with vigorous weightbearing activities. A high index of suspicion is necessary to diagnose stress fractures of the femur because the symptoms may be vague. The prec ...
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Journal ArticleClin Orthop Relat Res · February 1997
This study compared 2 methods of indwelling bipolar electrode insertion. One method used a single needle for the insertion of both wire leads, and the second method used 2 needles for the independent insertion of both leads at a specified interdetection di ...
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Journal ArticleRadiol Technol · 1997
The Grashey shoulder position is used to demonstrate damage to the glenohumeral joint caused by osteoarthritis, sclerosis, tumors, fractures, osteophytes and cystic changes. However, it can be difficult to assess loss of articular cartilage using the Grash ...
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Journal ArticleJ Shoulder Elbow Surg · 1997
Recent studies have demonstrated inconsistencies in the use of certain images for classifying proximal humerus fractures. Our purpose was to determine whether three-dimensional computed tomography or the level of expertise of the observers would improve th ...
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Journal ArticleJ Bone Joint Surg Am · December 1996
Arthroscopically assisted repair of the anterior aspect of the labrum with use of a bioabsorbable tack was performed in fifty-two consecutive patients who had chronic anterior instability of the shoulder. The average age of the patients was twenty-eight ye ...
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Journal ArticleJ Orthop Res · July 1996
To accurately compare electromyographic data from different muscles and different subjects, it is necessary to normalize the integrated data obtained from each muscle. The purpose of this study was to identify the manual muscle testing positions that elici ...
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Journal ArticleAm J Sports Med · 1996
To determine the degree of shoulder translation in uninjured athletes, we examined 76 Division I collegiate athletes (44 women and 32 men) for passive range of motion in both shoulders and for knee and elbow hyperextension. Translation was based on a scale ...
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Journal ArticleAm J Sports Med · 1996
The electromyographic activity of eight muscles of the rotator cuff and shoulder girdle (supraspinatus, infraspinatus, subscapularis, pectoralis, latissimus dorsi, and the anterior, middle, and posterior deltoid) was measured from the nondominant shoulders ...
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Journal ArticleAm J Sports Med · 1996
The objective of our study was to elucidate the characteristic pathoanatomy associated with patellar dislocation and report the preliminary results of early surgical repair. Twenty-three patients with documented patellar dislocation had standard radiograph ...
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Journal ArticleSports Med · December 1995
The differential diagnosis of pelvic pain and possible injury in the female athlete is quite broad and must include gastrointestinal and genitourinary aetiologies, as well as musculoskeletal injuries. These considerations reflect the anatomical complexity ...
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Journal ArticleClin Sports Med · October 1995
The mechanisms contributing to glenohumeral stability are complex and varied. The rotator cuff is the dominant contributor to stability through the mid arcs of motion through concavity compression. At the end ranges of motion, the capsular ligamentous syst ...
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Journal ArticleFoot Ankle Int · October 1995
Isolated gout of a great toe sesamoid has not been described previously. We present a case of gout of the medial sesamoid in a young athlete. Because a diagnosis is often elusive in patients with sesamoid pain, it is possible that other cases of gout of a ...
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Journal ArticleArthroscopy · April 1995
Twenty-two patients were treated for symptomatic lesions of the superior glenoid labrum in association with instability of the tendinous insertion of the long head of the biceps brachii. A biodegradable implant was used to fix the labrum to the bony glenoi ...
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Journal ArticleJ Shoulder Elbow Surg · 1995
Multidirectional instability (MDI) of the shoulder is a complex problem that is not yet well understood. Instability in several directions is termed MDI, but the precise definition, classification, cause, and optimal method of treatment remains elusive. Th ...
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Journal ArticleJ South Orthop Assoc · 1995
Passive glenohumeral motion loss can occur in patients with chronic rotator cuff tendinopathy and subacromial impingement. It is essential for the clinician when evaluating patients with rotator cuff symptoms and subacromial impingement to assess for conco ...
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Journal ArticleAm J Sports Med · 1995
We evaluated the effect of two different anterior capsular shift strategies on load-induced multidirectional glenohumeral motion. Nine cadaveric shoulders were tested on a special test apparatus in which three motions were constrained but which allowed sim ...
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Journal ArticleAm J Sports Med · 1995
The purpose of this study was to demonstrate the uniqueness of the injury mechanism for acute complete tears of the anterior cruciate ligament in recreational alpine skiers by using patterns of osseous injury as detected by magnetic resonance imaging. We t ...
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Journal ArticleJ Shoulder Elbow Surg · 1995
The most widely used radiographic classification system for acromial morphology identifies three distinct acromial shapes: type I (flat), type II (curved), and type III (hooked). The purpose of this study was to measure the interobserver and intraobserver ...
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Journal ArticleJ Bone Joint Surg Am · December 1994
The purpose of this study was to determine the effect of sectioning of the anterior part of the inferior glenohumeral ligament (a simulated Bankart lesion) on load-induced multidirectional glenohumeral motion. Nine fresh, intact cadaveric shoulders were te ...
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Journal ArticleAm J Sports Med · 1994
The purpose of this study was to evaluate the sensitivity, specificity, negative and positive predictive values, and accuracy of the shoulder relocation test in 100 patients who underwent shoulder surgery. Based on operative data and examination under anes ...
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Journal ArticleAm J Sports Med · 1993
To determine more precisely the injury mechanism of the peroneal tendon longitudinal tear, we studied 15 cadaveric lower extremities. Our study was motivated by our observation from a retrospective study of athletes treated by one surgeon (FHB) over a 17-y ...
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Journal ArticleAm J Sports Med · 1993
We reviewed our experience with computed tomography and magnetic resonance imaging of acute muscle strain injury. We imaged 50 athletes (average age, 28 years; range, 17 to 42) who had an acute muscle strain involving either the adductor, hamstring, quadri ...
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Journal ArticleAm J Sports Med · 1992
Multiplanar spin-echo magnetic resonance imaging was performed on 54 patients with acute complete anterior cruciate ligament tears. Imaging was done within 45 days of index anterior cruciate ligament injury. Spin-echo T1- and T2-weighted images were used t ...
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Journal ArticleClin Orthop Relat Res · June 1991
The purpose of this study was to assess the utility of tetracycline hydrochloride (HCl) labeling of the femoral head following acute intracapsular fracture of the femoral neck to indirectly assess femoral head viability and vascularity. A standard labeling ...
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Journal ArticleArthroscopy · 1991
A study group composed of 25 shoulders in 24 patients underwent arthroscopic subacromial decompression for advanced impingement syndrome. There were no full thickness rotator cuff tears, biceps tendon ruptures, significant acromioclavicular arthrosis, or e ...
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Journal ArticleAm J Sports Med · 1991
The purpose of this study was to assess the sensitivity of magnetic resonance imaging in determining the presence of articular cartilage injuries of the knee with arthroscopy as the standard for comparison. Forty-nine articular cartilage lesions were docum ...
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Journal ArticleJ Bone Joint Surg Am · December 1990
The effects of exposure of articular cartilage to air and the potential for reversibility of the histological and ultrastructural changes that were produced by this exposure were investigated in the knee joint of the rabbit. After a medial parapatellar art ...
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Journal ArticleAm J Sports Med · 1990
Over the course of a single football season, six players evaluated by the medical staff had burners that displayed a prolonged neurologic recovery. These players were examined and subsequently evaluated with isokinetic testing and electrodiagnostic studies ...
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Journal ArticleJ Bone Joint Surg Am · January 1990
In fifteen patients who had a subcapital fracture of the femoral neck (twelve displaced fractures and three non-displaced fractures), magnetic resonance imaging of the femoral head was done with two-dimensional Fourier transform spin-echo technique within ...
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Journal ArticleClin Orthop Relat Res · September 1988
A cutaneous abscess involving Neisseria gonorrhoeae is extremely rare outside the perineum. Such remote lesions are a result of disseminated gonococcal disease. A 12-year-old girl with arthrogryposis multiplex congenita developed a gonococcal abscess on th ...
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