Scholars@Duke

• Background
• 

  Education, Training, & Certifications

  • Fellow Adult Reconstruction, Orthopaedic Surgery, Mayo Clinic 2020 - 2021
  • Resident Physician, Orthopaedic Surgery, Duke University School of Medicine 2015 - 2020
  • M.D., Ohio State University 2015
• 

  Medical Licensure

  • 2021-00394. North Carolina. 2021
• 

  Leadership & Clinical Positions at Duke

  • Director of Clinical Research, Division of Adult Reconstruction
    
    COORDS Committee
    
    
    
• 

  Academic Positions Outside Duke

  • AJRR Publications Committee, AAOS. 2021 - 2022
• Recognition
• 

  Awards & Honors

  • AAHKS Best Poster Award. AAHKS. 2021
  • Frank Stinchfield Award. Hip Society. 2021
  • Blue Ribbon Article Award. Blue Journal of Orthopaedics . 2019
  • Claude T. Moorman Annual Research Award. Department of Orthopaedics. 2019
  • J. Leonard Goldner Annual Research Presentation Award for Excellence. Department of Orthopaedics. 2019
  • James R. Urbaniak Research Excellence Award. Duke Orthopaedic Journal . 2019
  • Thomas R. Bowen, MD Award. Eastern Orthopaedic Association. 2019
  • Blue Ribbon Article Award. Blue Journal of Orthopaedics . 2018
  • Jon T Mader Award. Musculoskeletal Infection Society. 2018
  • Overall Academic Excellence Award. The Ohio State University College of Medicine. 2015
• Expertise
• 

  Subject Headings

  • Arthritis
  • Arthritis, Gouty
  • Arthritis, Infectious
  • Arthritis, Psoriatic
  • Arthritis, Reactive
  • Arthroplasty
  • Arthroplasty, Replacement
  • Arthroplasty, Replacement, Hip
  • Arthroplasty, Replacement, Knee
  • Dysplasia
  • Hemiarthroplasty
  • Osteoarthritis
  • Osteoarthritis, Hip
  • Osteoarthritis, Knee
  • Rheumatoid arthritis
  • Total hip replacement
  • Total knee replacement
• Research
• 

  Selected Grants

  • A Prospective, Multi-center, Study to Evaluate the Safety and Effectiveness of REAL INTELLIGENCE CORI in unicondylar knee arthroplasty (UKA) and total knee arthroplasty (TKA) procedures awarded by Smith & Nephew, Inc 2022 - 2024
  • Postoperative Morbidity and Mortality for Hip Fracture Patient's with Chronic Liver Disease awarded by Piedmont Orthopedic Foundation 2019 - 2021
• Publications & Artistic Works
• 

  Selected Publications

  • Academic Articles

    • Ryan, Sean P., Christopher N. Warne, Douglas R. Osmon, Aaron J. Tande, Cameron K. Ledford, Meredith Hyun, Daniel J. Berry, and Matthew P. Abdel. “Short Course of Oral Antibiotic Treatment After Two-Stage Exchange Arthroplasty Appears to Decrease Early Reinfection.” The Journal of Arthroplasty 38, no. 5 (May 2023): 909–13. https://doi.org/10.1016/j.arth.2022.12.006.
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    • Wu, Mark, Billy I. Kim, Andrew M. Schwartz, Samuel S. Wellman, Niall H. Cochrane, Michael P. Bolognesi, and Sean P. Ryan. “Does Order of Operation Matter in Patients Who Have Concomitant Hip and Spine Pathology?” J Arthroplasty, April 25, 2023. https://doi.org/10.1016/j.arth.2023.04.038.
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    • Rechenmacher, Albert J., Ayden Case, Mark Wu, Sean P. Ryan, Thorsten M. Seyler, and Michael P. Bolognesi. “Outcome Disparities in Total Knee and Total Hip Arthroplasty among Native American Populations.” J Racial Ethn Health Disparities, April 10, 2023. https://doi.org/10.1007/s40615-023-01590-w.
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    • Cochrane, Niall H., Billy I. Kim, Thorsten M. Seyler, Samuel S. Wellman, Michael P. Bolognesi, and Sean P. Ryan. “The Removal of Total Hip Arthroplasty From the Inpatient-Only List has Improved Patient Selection and Expanded Optimization Efforts.” J Arthroplasty, March 8, 2023. https://doi.org/10.1016/j.arth.2023.03.007.
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    • Cochrane, Niall H., Billy I. Kim, Thorsten M. Seyler, Michael P. Bolognesi, Samuel S. Wellman, and Sean P. Ryan. “Accelerated Discharge After Aseptic Revision Total Hip Arthroplasty Does Not Predict Inferior 30-Day Outcomes.” J Arthroplasty 38, no. 3 (March 2023): 541–47. https://doi.org/10.1016/j.arth.2022.09.010.
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    • Hernandez, Nicholas, Billy Kim, Niall H. Cochrane, Sean P. Ryan, and Thorsten M. Seyler. “Midterm Results of Contemporary Uncemented Total Hip Arthroplasty in Patients 45 Years or Younger.” Orthopedics 46, no. 1 (2023): e45–51. https://doi.org/10.3928/01477447-20221024-04.
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    • Cochrane, Niall H., Billy Kim, Thorsten M. Seyler, Michael P. Bolognesi, Samuel S. Wellman, and Sean P. Ryan. “Accelerated discharge after aseptic revision knee arthroplasty is not associated with early readmission and reoperation.” Bone Joint J 104-B, no. 12 (December 2022): 1323–28. https://doi.org/10.1302/0301-620X.104B12.BJJ-2022-0372.R2.
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    • Hernandez, Nicholas M., Christine J. Wu, Zoe W. Hinton, Sean P. Ryan, Michael P. Bolognesi, and Thorsten M. Seyler. “Primary Total Knee Arthroplasty in Patients Aged 45 Years or Younger: 162 Total Knee Arthroplasties With a Mean Follow-up Duration of 7 Years.” Arthroplast Today 18 (December 2022): 163–67. https://doi.org/10.1016/j.artd.2022.09.018.
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    • Wu, Christine J., Adam C. Brekke, Zoe W. Hinton, Billy I. Kim, Sean P. Ryan, Michael P. Bolognesi, and Thorsten M. Seyler. “Total joint arthroplasty following solid organ transplants: complications and mid-term outcomes.” Int Orthop 46, no. 12 (December 2022): 2735–45. https://doi.org/10.1007/s00264-022-05597-6.
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    • Wu, M., J. O’Donnell, N. Cochrane, S. Ryan, E. Belay, M. Myntti, and T. Seyler. “Effect of commonly used lavage solutions on the polymerization of bone cement.” Revue De Chirurgie Orthopedique Et Traumatologique 108, no. 8 (December 1, 2022): 1040. https://doi.org/10.1016/j.rcot.2022.02.016.
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    • Wu, Mark, Jeffrey O’Donnell, Niall Cochrane, Sean Ryan, Elshaday Belay, Matthew Myntti, and Thorsten Seyler. “Effect of commonly used lavage solutions on the polymerization of bone cement.” Orthop Traumatol Surg Res 108, no. 8 (December 2022): 103243. https://doi.org/10.1016/j.otsr.2022.103243.
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    • Cochrane, Niall, Sean Ryan, Billy Kim, Mark Wu, Jeffrey O’Donnell, and Thorsten Seyler. “Total Hip Arthroplasty in Morbidly Obese: Does a Strict Body Mass Index Cutoff Yield Meaningful Change?” Hip Pelvis 34, no. 3 (September 2022): 161–71. https://doi.org/10.5371/hp.2022.34.3.161.
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    • George, Steven Z., Michael P. Bolognesi, Sean P. Ryan, and Maggie E. Horn. “Sleep disturbance, dyspnea, and anxiety following total joint arthroplasty: an observational study.” J Orthop Surg Res 17, no. 1 (August 19, 2022): 396. https://doi.org/10.1186/s13018-022-03288-x.
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    • Wu, Christine J., Sean P. Ryan, Zoe W. Hinton, Lefko T. Charalambous, Samuel S. Wellman, Michael P. Bolognesi, and Thorsten M. Seyler. “Short-Stay Arthroplasty is Not Associated With Increased Risk of 90-Day Hospital Returns.” J Arthroplasty 37, no. 8S (August 2022): S819–22. https://doi.org/10.1016/j.arth.2022.01.050.
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    • Hinton, Zoe W., Christine J. Wu, Sean P. Ryan, Daniel J. Cunningham, Cynthia L. Green, and Paul F. Lachiewicz. “Current Trends in Revision Hip Arthroplasty: Indications and Types of Components Revised.” J Arthroplasty 37, no. 7S (July 2022): S611-S615.e7. https://doi.org/10.1016/j.arth.2022.03.008.
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    • Ryan, Sean P., Cory G. Couch, Stephanie Q. Duong, Michael J. Taunton, David G. Lewallen, Daniel J. Berry, and Matthew P. Abdel. “Frank Stinchfield Award: Does Bariatric Surgery Prior to Primary Total Hip Arthroplasty Really Improve Outcomes?” J Arthroplasty 37, no. 7S (July 2022): S386–90. https://doi.org/10.1016/j.arth.2022.01.084.
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    • Ryan, Sean P., Cory G. Couch, Stephanie Q. Duong, Michael J. Taunton, David G. Lewallen, Daniel J. Berry, and Matthew P. Abdel. “Does Bariatric Surgery Prior to Primary Total Knee Arthroplasty Improve Outcomes?” J Arthroplasty 37, no. 6S (June 2022): S165–69. https://doi.org/10.1016/j.arth.2022.02.048.
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    • Wu, Mark, Niall H. Cochrane, Billy Kim, Elshaday S. Belay, Jeffrey O’Donnell, Sean P. Ryan, William A. Jiranek, and Thorsten M. Seyler. “Patterns and Predictors of Weight Change Before and After Total Hip Arthroplasty in Class 2 and 3 Obese Patients.” J Arthroplasty 37, no. 5 (May 2022): 880–87. https://doi.org/10.1016/j.arth.2022.01.009.
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    • Dial, Brian L., Anthony A. Catanzano, Valentine Esposito, John Steele, Amanda Fletcher, Sean P. Ryan, John P. Kirkpatrick, et al. “Treatment Outcomes in Spinal Metastatic Disease With Indeterminate Stability.” Global Spine J 12, no. 3 (April 2022): 373–80. https://doi.org/10.1177/2192568220956605.
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    • Kim, Billy I., Niall H. Cochrane, Jeffrey A. O’Donnell, Mark Wu, Samuel S. Wellman, Sean Ryan, and Thorsten M. Seyler. “Preoperative Weight Loss and Postoperative Weight Gain Independently Increase Risk for Revision After Primary Total Knee Arthroplasty.” J Arthroplasty 37, no. 4 (April 2022): 674–82. https://doi.org/10.1016/j.arth.2021.12.003.
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    • O’Donnell, Jeffrey A., Mark Wu, Niall H. Cochrane, Elshaday Belay, Matthew F. Myntti, Garth A. James, Sean P. Ryan, and Thorsten M. Seyler. “Efficacy of Common Antiseptic Solutions Against Clinically Relevant Planktonic Microorganisms.” Orthopedics 45, no. 2 (2022): 122–27. https://doi.org/10.3928/01477447-20211227-05.
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    • Sutak, Alan K., Sean P. Ryan, Cierra S. Hong, Tyler J. Vovos, Samuel S. Wellman, William A. Jiranek, and Thorsten M. Seyler. “The Effect of Medical Education on Patient Satisfaction: An Asset or a Liability?” Orthopedics 45, no. 5 (2022): 276–80. https://doi.org/10.3928/01477447-20220511-06.
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    • Couch, C. G., and S. P. Ryan. “Metaphyseal Fixation for Revision Total Knee Arthroplasty.” Operative Techniques in Orthopaedics 31, no. 4 (December 1, 2021). https://doi.org/10.1016/j.oto.2021.100909.
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    • Cunningham, Daniel J., Sean P. Ryan, Steven Z. George, and Brian D. Lewis. “Opioid legislation and narcotic filling in total hip arthroplasty: descriptive study of time and state-level trends in the United States.” Subst Abuse Treat Prev Policy 16, no. 1 (September 28, 2021): 75. https://doi.org/10.1186/s13011-021-00410-w.
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    • Harding, Margaret M., Sonia E. Xavier, Thorsten M. Seyler, and Sean P. Ryan. “The Effects of Dexamethasone in Diabetic Patients Undergoing Primary Total Joint Arthroplasty.” Orthop Nurs 40, no. 5 (September 2021): 301–4. https://doi.org/10.1097/NOR.0000000000000790.
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    • Salmons, Harold I., Sean P. Ryan, and Robert T. Trousdale. “Intraoperative Fracture of a Dual Modular Delta Ceramic Femoral Head During Total Hip Arthroplasty: A Case Report.” Jbjs Case Connect 11, no. 3 (August 16, 2021). https://doi.org/10.2106/JBJS.CC.21.00215.
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    • Hernandez, Nicholas M., Zoe W. Hinton, Christine J. Wu, Paul F. Lachiewicz, Sean P. Ryan, and Samuel S. Wellman. “Is there a problem with modular dual mobility acetabular components in revision total hip arthroplasty at mid-term follow-up?” Bone Joint J 103-B, no. 7 Supple B (July 2021): 66–72. https://doi.org/10.1302/0301-620X.103B7.BJJ-2020-2015.R1.
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    • Cunningham, Daniel J., Sean P. Ryan, Cierra Hong, Suhail K. Mithani, and Samuel B. Adams. “Incidence and Risk Factors for Flap Coverage After Total Ankle Arthroplasty.” Foot Ankle Int 42, no. 6 (June 2021): 744–49. https://doi.org/10.1177/1071100720982901.
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    • Hernandez, Nicholas M., Zoe W. Hinton, Christine J. Wu, Sean P. Ryan, and Michael P. Bolognesi. “Mid-term results of tibial cones : reasonable survivorship but increased failure in those with significant bone loss and prior infection.” Bone Joint J 103-B, no. 6 Supple A (June 2021): 158–64. https://doi.org/10.1302/0301-620X.103B6.BJJ-2020-1934.R1.
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    • Hinton, Zoe W., Amanda N. Fletcher, Sean P. Ryan, Christine J. Wu, Michael P. Bolognesi, and Thorsten M. Seyler. “Body Mass Index, American Society of Anesthesiologists Score, and Elixhauser Comorbidity Index Predict Cost and Delay of Care During Total Knee Arthroplasty.” J Arthroplasty 36, no. 5 (May 2021): 1621–25. https://doi.org/10.1016/j.arth.2020.12.016.
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    • O’Donnell, Jeffrey A., Mark Wu, Niall H. Cochrane, Elshaday Belay, Matthew F. Myntti, Garth A. James, Sean P. Ryan, and Thorsten M. Seyler. “Efficacy of common antiseptic solutions against clinically relevant microorganisms in biofilm.” Bone Joint J 103-B, no. 5 (May 2021): 908–15. https://doi.org/10.1302/0301-620X.103B5.BJJ-2020-1245.R2.
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    • Steele, John R., Sean P. Ryan, William A. Jiranek, Samuel S. Wellman, Michael P. Bolognesi, and Thorsten M. Seyler. “Cost of Aseptic Revision Total Knee Arthroplasty at a Tertiary Medical Center.” J Arthroplasty 36, no. 5 (May 2021): 1729–33. https://doi.org/10.1016/j.arth.2020.11.028.
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    • Goltz, Daniel E., Sean P. Ryan, David E. Attarian, William A. Jiranek, Michael P. Bolognesi, and Thorsten M. Seyler. “A Preoperative Risk Prediction Tool for Discharge to a Skilled Nursing or Rehabilitation Facility After Total Joint Arthroplasty.” J Arthroplasty 36, no. 4 (April 2021): 1212–19. https://doi.org/10.1016/j.arth.2020.10.038.
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    • Bergen, Michael A., Sean P. Ryan, Cierra S. Hong, Johannes F. Plate, Michael P. Bolognesi, and Thorsten M. Seyler. “Revision Total Joint Arthroplasty: Final Stop Tertiary Referral Center.” Orthopedics 44, no. 4 (2021): e477–81. https://doi.org/10.3928/01477447-20210618-03.
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    • Kildow, Beau J., Sean P. Ryan, Richard Danilkowicz, Alexander L. Lazarides, Colin Penrose, Michael P. Bolognesi, William Jiranek, and Thorsten M. Seyler. “Next-generation sequencing not superior to culture in periprosthetic joint infection diagnosis.” Bone Joint J 103-B, no. 1 (January 2021): 26–31. https://doi.org/10.1302/0301-620X.103B1.BJJ-2020-0017.R3.
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    • Ryan, Sean P., Christine J. Wu, Johannes F. Plate, Michael P. Bolognesi, William A. Jiranek, and Thorsten M. Seyler. “A Case Complexity Modifier Is Warranted for Primary Total Knee Arthroplasty.” J Arthroplasty 36, no. 1 (January 2021): 37–41. https://doi.org/10.1016/j.arth.2020.07.066.
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    • Ryan, Sean P., John R. Steele, Johannes F. Plate, David E. Attarian, Thorsten M. Seyler, Michael P. Bolognesi, and Samuel S. Wellman. “All-Polyethylene Tibia: An Opportunity for Value-Based Care in Bundled Reimbursement Initiatives.” Orthopedics 44, no. 1 (January 1, 2021): e114–18. https://doi.org/10.3928/01477447-20201009-01.
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    • Ryan, Sean P., Samuel B. Adams, Nicholas Allen, Alexander L. Lazarides, Samuel S. Wellman, and Mark J. Gage. “Intraoperative Fire Risk: Evaluating the 3-Minute Wait After Chlorhexidine-Alcohol Antiseptic Scrub.” J Orthop Trauma 35, no. 1 (January 1, 2021): e31–33. https://doi.org/10.1097/BOT.0000000000001885.
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    • Kildow, Beau J., Sean P. Ryan, Richard Danilkowicz, Alexander L. Lazarides, Tyler J. Vovos, Michael P. Bolognesi, William A. Jiranek, and Thorsten M. Seyler. “Commercially Available Polymerase Chain Reaction Has Minimal Utility in the Diagnosis of Periprosthetic Joint Infection.” Orthopedics 43, no. 6 (November 1, 2020): 333–38. https://doi.org/10.3928/01477447-20200923-01.
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    • Plate, Johannes F., Sean P. Ryan, Michael A. Bergen, Cierra S. Hong, Michael A. Mont, Michael P. Bolognesi, and Thorsten M. Seyler. “Patient Risk Profile for Unplanned 90-Day Emergency Department Visits Differs Between Total Hip and Total Knee Arthroplasty.” Orthopedics 43, no. 5 (September 1, 2020): 295–302. https://doi.org/10.3928/01477447-20200818-02.
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    • Ryan, Sean P., Jorge A. Padilla, Ran Schwarzkopf, Mark J. Gage, Michael P. Bolognesi, and Thorsten M. Seyler. “Arthroplasty Surgeons Do Not Improve Acute Outcomes for Patients With Hip Fracture Relative to Other Subspecialists.” Orthopedics 43, no. 5 (September 1, 2020): e442–46. https://doi.org/10.3928/01477447-20200619-11.
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    • Padilla, Jorge A., Jonathan A. Gabor, Sean P. Ryan, William J. Long, Thorsten M. Seyler, and Ran M. Schwarzkopf. “Total Hip Arthroplasty for Femoral Neck Fracture: The Economic Implications of Orthopedic Subspecialty Training.” J Arthroplasty 35, no. 6S (June 2020): S101–6. https://doi.org/10.1016/j.arth.2020.01.047.
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    • Hong, Cierra S., Cary Politzer, Sean P. Ryan, Samuel S. Wellman, William A. Jiranek, Michael P. Bolognesi, and Thorsten M. Seyler. “Impact of Patent Foramen Ovale on Total Knee Arthroplasty Cerebrovascular Accident Perioperative Management.” Orthopedics 43, no. 3 (May 1, 2020): e151–58. https://doi.org/10.3928/01477447-20200213-06.
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    • Black, Collin S., Sean P. Ryan, Daniel E. Goltz, Amanda N. Fletcher, Samuel S. Wellman, Michael P. Bolognesi, and Thorsten M. Seyler. “Response to Letter to the Editor on "The Role of Malnutrition in Ninety-Day Outcomes After Total Joint Arthroplasty".” J Arthroplasty 35, no. 3 (March 2020): 901–2. https://doi.org/10.1016/j.arth.2019.11.022.
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    • Hong, Cierra S., Collin S. Black, Sean P. Ryan, and Thorsten M. Seyler. “Extended Oral Antibiotics and Infection Prophylaxis after a Primary or Revision Total Knee Arthroplasty.” J Knee Surg 33, no. 2 (February 2020): 111–18. https://doi.org/10.1055/s-0039-3400755.
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    • Hernandez, Nicholas M., Sean P. Ryan, Christine J. Wu, Zoe W. Hinton, Samuel S. Wellman, Michael P. Bolognesi, and Thorsten M. Seyler. “Same-day Bilateral Total Knee Arthroplasty Did Not Increase 90-day Hospital Returns.” J Orthop Surg (Hong Kong) 28, no. 2 (2020): 2309499020918170. https://doi.org/10.1177/2309499020918170.
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    • Belay, Elshaday S., Colin T. Penrose, Sean P. Ryan, Michael A. Bergen, Michael P. Bolognesi, and Thorsten M. Seyler. “Perioperative Selective Serotonin Reuptake Inhibitor Use Is Associated With an Increased Risk of Transfusion in Total Hip and Knee Arthroplasty.” J Arthroplasty 34, no. 12 (December 2019): 2898–2902. https://doi.org/10.1016/j.arth.2019.04.057.
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    • Ryan, Sean P., Thomas J. Hopkins, Samuel S. Wellman, William A. Jiranek, Michael P. Bolognesi, and Thorsten M. Seyler. “Undersedation During Total Hip Arthroplasty Reduction Results in Worse Patient Outcomes.” J Arthroplasty 34, no. 12 (December 2019): 3061–64. https://doi.org/10.1016/j.arth.2019.07.020.
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    • Black, Collin S., Daniel E. Goltz, Sean P. Ryan, Amanda N. Fletcher, Samuel S. Wellman, Michael P. Bolognesi, and Thorsten M. Seyler. “The Role of Malnutrition in Ninety-Day Outcomes After Total Joint Arthroplasty.” J Arthroplasty 34, no. 11 (November 2019): 2594–2600. https://doi.org/10.1016/j.arth.2019.05.060.
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    • Bradley, Kendall E., Sean P. Ryan, Colin T. Penrose, Stuart A. Grant, Samuel S. Wellman, David E. Attarian, Cynthia L. Green, Thomas Risoli, and Michael P. Bolognesi. “Tranexamic acid or epsilon-aminocaproic acid in total joint arthroplasty? A randomized controlled trial.” Bone Joint J 101-B, no. 9 (September 2019): 1093–99. https://doi.org/10.1302/0301-620X.101B9.BJJ-2018-1096.R1.
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    • Goltz, Daniel E., Sean P. Ryan, Claire B. Howell, Michael P. Bolognesi, Thorsten M. Seyler, and Samuel B. Adams. “Patients at Risk for Exceeding CJR Cost Targets After Total Ankle Arthroplasty.” Foot Ankle Int 40, no. 9 (September 2019): 1025–31. https://doi.org/10.1177/1071100719853494.
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    • Ryan, Sean P., Johannes F. Plate, Collin S. Black, Claire B. Howell, William A. Jiranek, Michael P. Bolognesi, and Thorsten M. Seyler. “Value-Based Care Has Not Resulted in Biased Patient Selection: Analysis of a Single Center's Experience in the Care for Joint Replacement Bundle.” J Arthroplasty 34, no. 9 (September 2019): 1872–75. https://doi.org/10.1016/j.arth.2019.04.052.
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    • Plate, Johannes F., Sean P. Ryan, Collin S. Black, Claire B. Howell, William A. Jiranek, Michael P. Bolognesi, and Thorsten M. Seyler. “No Changes in Patient Selection and Value-Based Metrics for Total Hip Arthroplasty After Comprehensive Care for Joint Replacement Bundle Implementation at a Single Center.” J Arthroplasty 34, no. 8 (August 2019): 1581–84. https://doi.org/10.1016/j.arth.2019.05.016.
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    • Plate, Johannes F., Sean P. Ryan, Daniel E. Goltz, Claire B. Howell, Michael P. Bolognesi, and Thorsten M. Seyler. “Response to Letter to the Editor on "Medicaid Insurance Correlates With Increased Resource Utilization Following Total Hip Arthroplasty".” J Arthroplasty 34, no. 8 (August 2019): 1857–58. https://doi.org/10.1016/j.arth.2019.04.006.
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    • Vovos, Tyler J., Alexander L. Lazarides, Sean P. Ryan, Beau J. Kildow, Samuel S. Wellman, and Thorsten M. Seyler. “Prior Hip Arthroscopy Increases Risk for Perioperative Total Hip Arthroplasty Complications: A Matched-Controlled Study.” J Arthroplasty 34, no. 8 (August 2019): 1707–10. https://doi.org/10.1016/j.arth.2019.03.066.
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    • Bergen, Michael A., Sean P. Ryan, Cierra S. Hong, Michael P. Bolognesi, and Thorsten M. Seyler. “Conversion Total Knee Arthroplasty: A Distinct Surgical Procedure With Increased Resource Utilization.” J Arthroplasty 34, no. 7S (July 2019): S114–20. https://doi.org/10.1016/j.arth.2019.01.070.
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    • Howell, Elizabeth P., Beau J. Kildow, Vasili Karas, Cynthia L. Green, Daniel J. Cunningham, Sean P. Ryan, Michael P. Bolognesi, and Thorsten M. Seyler. “Clinical Impact of Routine Complete Blood Counts Following Total Knee Arthroplasty.” J Arthroplasty 34, no. 7S (July 2019): S168–72. https://doi.org/10.1016/j.arth.2019.03.016.
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    • Ryan, Sean P., Beau J. Kildow, Timothy L. Tan, Javad Parvizi, Michael P. Bolognesi, Thorsten M. Seyler, and Thorsten M. American Association of Hip and Knee Surgeons Research Committee. “Is There a Difference in Infection Risk Between Single and Multiple Doses of Prophylactic Antibiotics? A Meta-analysis.” Clin Orthop Relat Res 477, no. 7 (July 2019): 1577–90. https://doi.org/10.1097/CORR.0000000000000619.
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    • Ryan, Sean P., Claire B. Howell, Samuel S. Wellman, David E. Attarian, Michael P. Bolognesi, William A. Jiranek, Solomon Aronson, and Thorsten M. Seyler. “Preoperative Optimization Checklists Within the Comprehensive Care for Joint Replacement Bundle Have Not Decreased Hospital Returns for Total Knee Arthroplasty.” J Arthroplasty 34, no. 7S (July 2019): S108–13. https://doi.org/10.1016/j.arth.2018.12.010.
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    • Ryan, Sean P., Johannes F. Plate, Daniel E. Goltz, David E. Attarian, Samuel S. Wellman, Thorsten M. Seyler, and William A. Jiranek. “Should Medical Severity-Diagnosis Related Group Classification Be Utilized for Reimbursement? An Analysis of Elixhauser Comorbidities and Cost of Care.” J Arthroplasty 34, no. 7 (July 2019): 1312–16. https://doi.org/10.1016/j.arth.2019.02.045.
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    • Goltz, Daniel E., Sean P. Ryan, Claire B. Howell, David Attarian, Michael P. Bolognesi, and Thorsten M. Seyler. “A Weighted Index of Elixhauser Comorbidities for Predicting 90-day Readmission After Total Joint Arthroplasty.” J Arthroplasty 34, no. 5 (May 2019): 857–64. https://doi.org/10.1016/j.arth.2019.01.044.
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    • Vovos, Tyler J., Sean P. Ryan, Cierra S. Hong, Claire B. Howell, Thomas J. Risoli, David E. Attarian, and Thorsten M. Seyler. “Predicting Inpatient Dissatisfaction Following Total Joint Arthroplasty: An Analysis of 3,593 Hospital Consumer Assessment of Healthcare Providers and Systems Survey Responses.” J Arthroplasty 34, no. 5 (May 2019): 824–33. https://doi.org/10.1016/j.arth.2019.01.008.
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    • Goltz, Daniel E., Sean P. Ryan, Thomas J. Hopkins, Claire B. Howell, David E. Attarian, Michael P. Bolognesi, and Thorsten M. Seyler. “A Novel Risk Calculator Predicts 90-Day Readmission Following Total Joint Arthroplasty.” J Bone Joint Surg Am 101, no. 6 (March 20, 2019): 547–56. https://doi.org/10.2106/JBJS.18.00843.
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    • Tan, Timothy L., Noam Shohat, Alexander J. Rondon, Carol Foltz, Karan Goswami, Sean P. Ryan, Thorsten M. Seyler, and Javad Parvizi. “Perioperative Antibiotic Prophylaxis in Total Joint Arthroplasty: A Single Dose Is as Effective as Multiple Doses.” J Bone Joint Surg Am 101, no. 5 (March 6, 2019): 429–37. https://doi.org/10.2106/JBJS.18.00336.
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    • Ryan, Sean P., Daniel E. Goltz, Claire B. Howell, William A. Jiranek, David E. Attarian, Michael P. Bolognesi, and Thorsten M. Seyler. “Predicting Costs Exceeding Bundled Payment Targets for Total Joint Arthroplasty.” J Arthroplasty 34, no. 3 (March 2019): 412–17. https://doi.org/10.1016/j.arth.2018.11.012.
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    • Ryan, Sean P., Mitchell R. Klement, Cynthia L. Green, Daniel J. Blizzard, Samuel S. Wellman, and Thorsten M. Seyler. “Preoperative Hemoglobin Predicts Postoperative Transfusion Despite Antifibrinolytics During Total Knee Arthroplasty.” Orthopedics 42, no. 2 (March 1, 2019): 103–9. https://doi.org/10.3928/01477447-20190225-05.
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    • Plate, Johannes F., Sean P. Ryan, Daniel E. Goltz, Claire B. Howell, Michael P. Bolognesi, and Thorsten M. Seyler. “Medicaid Insurance Correlates With Increased Resource Utilization Following Total Hip Arthroplasty.” J Arthroplasty 34, no. 2 (February 2019): 255–59. https://doi.org/10.1016/j.arth.2018.10.011.
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    • Plate, Johannes F., Sean P. Ryan, Michael A. Bergen, Cierra S. Hong, David E. Attarian, and Thorsten M. Seyler. “Utilization of an Electronic Patient Portal Following Total Joint Arthroplasty Does Not Decrease Readmissions.” J Arthroplasty 34, no. 2 (February 2019): 211–14. https://doi.org/10.1016/j.arth.2018.11.002.
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    • Ryan, S. P., M. DiLallo, M. R. Klement, A. J. Luzzi, A. F. Chen, and T. M. Seyler. “Transfemoral amputation following total knee arthroplasty: mortality and functional outcomes.” Bone Joint J 101-B, no. 2 (February 2019): 221–26. https://doi.org/10.1302/0301-620X.101B2.BJJ-2018-0784.R1.
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    • Ryan, Sean P., Tyler J. Vovos, Cierra S. Hong, Michael A. Bergen, Peter M. Formby, Michael P. Bolognesi, and Thorsten M. Seyler. “Treatment of Prosthetic Joint Infection: Established Patient Relationships May Impact Medical Decision-Making.” J Arthroplasty 34, no. 2 (February 2019): 352–58. https://doi.org/10.1016/j.arth.2018.09.091.
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    • Formby, Peter, Cierra S. Hong, Sean Ryan, Samuel Wellman, and Michael Bolognesi. “Incidence of Periprosthetic Femur Fractures Utilizing the Posterior Approach with a Single Wedge Tapered Stem.” J Surg Orthop Adv 28, no. 4 (2019): 277–80.
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    • Hong, Cierra S., Sean P. Ryan, Jonathan A. Gabor, Michael A. Bergen, Ran Schwarzkopf, and Thorsten M. Seyler. “Predicting Success of Two-Stage Exchange for Prosthetic Joint Infection Using C-Reactive Protein/Albumin Ratio.” Adv Orthop 2019 (2019): 6521941. https://doi.org/10.1155/2019/6521941.
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    • Ryan, Sean P., Benjamin Wooster, William Jiranek, Samuel Wellman, Michael Bolognesi, and Thorsten Seyler. “Outcomes of Conversion Total Hip Arthroplasty From Free Vascularized Fibular Grafting.” J Arthroplasty 34, no. 1 (January 2019): 88–92. https://doi.org/10.1016/j.arth.2018.09.041.
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    • Ryan, Sean, Marcus Dilallo, Kevin McCoy, Cindy Green, and Thorsten Seyler. “Diabetes and Total Joint Arthroplasty: Infection Risk May Not Be Predictable by Markers of Glycemic Control.” J Surg Orthop Adv 28, no. 2 (2019): 127–31.
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    • Ryan, Sean, N. Larson, R. Nash, Anthony Catanzano, Brian Dial, B. Harpole, A. Pugely, and Sergio Mendoza. “Anterior vs. Posterior Lumbar Interbody Fusion: Does Cage Geometry Matter More Than Surgical Approach?” Duke Orthopaedic Journal 9, no. 1 (2019): 15–25.
    • Ryan, Sean P., Daniel E. Goltz, Claire B. Howell, David E. Attarian, Michael P. Bolognesi, and Thorsten M. Seyler. “Skilled Nursing Facilities After Total Knee Arthroplasty: The Time for Selective Partnerships Is Now!.” J Arthroplasty 33, no. 12 (December 2018): 3612–16. https://doi.org/10.1016/j.arth.2018.08.012.
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    • Ryan, Sean P., Cary Politzer, Cynthia Green, Samuel Wellman, Michael Bolognesi, and Thorsten Seyler. “Albumin Versus American Society of Anesthesiologists Score: Which Is More Predictive of Complications Following Total Joint Arthroplasty?” Orthopedics 41, no. 6 (November 1, 2018): 354–62. https://doi.org/10.3928/01477447-20181010-05.
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    • Ryan, Sean, Cary Politzer, Amanda Fletcher, Michael Bolognesi, and Thorsten Seyler. “Preoperative Hypoalbuminemia Predicts Poor Short-term Outcomes for Hip Fracture Surgery.” Orthopedics 41, no. 6 (November 1, 2018): e789–96. https://doi.org/10.3928/01477447-20180912-03.
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    • Ryan, Sean P., Marcus DiLallo, David E. Attarian, William A. Jiranek, and Thorsten M. Seyler. “Conversion vs Primary Total Hip Arthroplasty: Increased Cost of Care and Perioperative Complications.” J Arthroplasty 33, no. 8 (August 2018): 2405–11. https://doi.org/10.1016/j.arth.2018.03.006.
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    • Ryan, Sean, Julia Visgauss, David Kerr, Joshua Helmkamp, Nicholas Said, Emily Vinson, Patrick O’Donnell, et al. “The Value of MRI in Distinguishing Subtypes of Lipomatous Extremity Tumors Needs Reassessment in the Era of MDM2 and CDK4 Testing.” Sarcoma 2018 (2018): 1901896. https://doi.org/10.1155/2018/1901896.
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    • Ryan, Sean, William Eward, Brian Brigman, and Robert Zura. “Chronic Osteomyelitis of the Distal Femur Treated with Resection and Delayed Endoprosthetic Reconstruction: A Report of Three Cases.” Case Rep Orthop 2017 (2017): 5141032. https://doi.org/10.1155/2017/5141032.
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    • Ryan, S. P., J. L. Mayerson, M. K. Crist, and T. J. Scharschmidt. “Inferior vena cava filter and aspirin in thromboprophylaxis during resection of pelvic malignancies.” Current Orthopaedic Practice 26, no. 3 (December 1, 2015): 314–17. https://doi.org/10.1097/BCO.0000000000000220.
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  • Conference Papers

    • Catanzano, A. A., S. P. Ryan, A. L. Lazarides, B. E. Brigman, and W. C. Eward. “New Techniques for Diagnosis and Treatment of Musculoskeletal Tumors: Methods of Intraoperative Margin Detection.” In Techniques in Orthopaedics, 33:148–57, 2018. https://doi.org/10.1097/BTO.0000000000000290.
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• Teaching & Mentoring
• 

  Teaching Activities

  • AO Reconstruction North America Course - Principles of Total Hip and Knee Arthroplasty: Faculty
• Scholarly, Clinical, & Service Activities
• 

  Presentations & Appearances

  • Cochrane NH, Ryan SP, Kim BI, Wu M, O’Donnell J, Wellman SS, Seyler TM. Total Hip Arthroplasty in Morbidly Obese: Does a Strict BMI Cutoff Yield Meaningful Change? Podium Presentation. (AAOS). 2022  2022
  • Ryan SP, Couch CG, Taunton MJ, Lewallen DG, Berry DJ, Abdel MP. Does Bariatric Surgery Prior to Primary Total Hip Arthroplasty Improve Outcomes? Specialty Day Podium. Hip Society Stinchfield Award. (AAOS). 2022  2022
  • Ryan SP, Warne CN, Osmon DR, Ledford CK, Berry DJ, Abdel MP. Extended Oral Antibiotics After Two-Stage Exchange Arthroplasty Decreases Short-Term Reinfection. Poster Presentation. (AAOS). 2022  2022
  • Ryan SP, Couch CG, Taunton MJ, Lewallen DG, Berry DJ, Abdel MP. Does Bariatric Surgery Prior to Primaary Total Knee Arthroplasty Improve Outcomes? Poster presentation. Top 30 Poster. (AAHKS). 2021  2021
  • Ryan SP, Couch CG, Taunton MJ, Lewallen DG, Berry DJ, Abdel MP. Does Bariatric Surgery Prior to Primaary Total Knee Arthroplasty Improve Outcomes? Poster presentation. Top 30 Poster. (CCJR). 2021  2021
  • Ryan SP, Couch CG, Taunton MJ, Lewallen DG, Berry DJ, Abdel MP. Does Bariatric Surgery Prior to Primary Total Knee Arthroplasty Improve Outcomes? Poster presentation. (AAOS). 2021  2021
  • Ryan SP, Couch CG, Taunton MJ, Lewallen DG, Berry DJ, Abdel MP. Does Bariatric Surgery Prior to Total Hip Arthroplasty Really Improve Outcomes? Poster presentation. (AAHKS). 2021  2021
  • Ryan SP, Warne CN, Osmon DR, Ledford CK, Berry DJ, Abdel MP. Extended Oral Antibiotics After Two-Stage Exchange Arthroplasty Decreases Short-Term Reinfection. Poster Presentation. (AAHKS). 2021  2021
  • Ryan SP, Warne CN, Osmon DR, Ledford CK, Berry DJ, Abdel MP. Extended Oral Antibiotics After Two-Stage Exchange Arthroplasty Decreases Short-Term Reinfection. Poster Presentation. (CCJR). 2021  2021
  • Ryan TG, Milaadore N, Ryan JT, Ryan SP, Miladore JN. The Influence of Limb Position on Venous Flow Following Total Knee Arthroplasty. Poster presentation. (AAHKS). 2021  2021
  • Warne CN, Ryan SP, Yu E, Osmon DR, Berry DJ, Abdel MP. Cutibacterium acnes Periprosthetic Joint Infections: Presentation and Treatment Considerations. Poster presentation. (AAHKS). 2021  2021
  • Wu CJ, Brekke AC, Hinton ZW, Kim BI, Ryan SP, Bolognesi MP, Seyler TM. Total Joint Arthroplasty Following Solid Organ Transplants: Complications and Mid-term Outcomes. Poster presentation. (AAHKS). 2021  2021
  • Wu CJ, Ryan SP, Hinton ZW, Charalambous LT, Wellman SS, Bolognesi MP, Seyler TM. Short Stay Arthroplasty Is Not Associated with Increased 90-Day Complications. Poster presentation. Best Poster Award. (AAHKS). 2021  2021
  • Hernandez NM, Hinton ZW, Wu CJ, Ryan SP, Bolognesi MP. Tibial Cones in Revision Total Knee Arthroplasty: Mean Clinical Follow-up Greater Than Five Years. Poster presentation. American Association of Hip and Knee Surgeons (AAHKS). 2020  2020
  • Hernandez NM, Wu CJ, Hinton ZW, Lachiewicz PF, Ryan SP, Wellman SS. Is There a Problem with Modular Dual Mobility Components in Revision THA at Mid-term Follow-up? Podium presentation. American Association of Hip and Knee Surgeons (AAHKS). 2020  2020
  • Hinton Z, Hernandez N, Wu CJ, Ryan SP, Wellman SS, Lachiewicz PF, Bolognesi MP, Seyler TM. MDM Acetabular Components in Revision Total Hip Arthroplasty: An Update. Video Presentation. Southern Orthopaedic Association. 2020  2020
  • Hinton Z, Hernandez N, Wu CJ, Ryan SP, Wellman SS, Lachiewicz PF, Bolognesi MP, Seyler TM. Outcomes of Tibial Cones with Short Stems in Revision TKA. Video Presentation. Southern Orthopaedic Association. 2020  2020
  • Hinton Z, Ryan SP, Wu CJ, Hernandez N, Howell C, Bolognesi MP, Seyler TM. BMI, ASA, and Elixhauser as Cost Predictors throughout Phases of Care. Video Presentation . Southern Orthopaedic Association. 2020  2020
  • Hinton Z, Ryan SP, Wu CJ, Howell C, Hernandez N, Wellman SS, Bolognesi MP, Seyler TM. BMI and ASA Score Predict Delays in Total Hip Arthroplasty. Video Presentation. Southern Orthopaedic Association. 2020  2020
  • Hinton ZW, Ryan SP, Wu CJ, Bolognesi MP, Seyler TM. BMI, ASA Score, and Elixhauser Comorbidity Index as Cost Predictors Throughout Phases of Care. Poster presentation. American Association of Hip and Knee Surgeons (AAHKS). 2020  2020
  • Ryan SP, Wu CJ, Bolognesi MP, Jiranek WA, Wellman SS, Seyler TM. A Case Complexity Modifier Is Warranted For Primary Total Knee Arthroplasty. Poster presentation. American Association of Hip and Knee Surgeons (AAHKS). 2020  2020
  • Steele JR, Ryan SP, Plate JF, Attarian DE, Seyler TM, Bolognesi MP, Wellman SS. All-polyethylene Tibia: An Opportunity for Value Based Care in Bundled Reimbursement Initiatives. Video Presentation. Southern Orthopaedic Association. 2020  2020
  • Wu CJ, Ryan SP, Hinton ZW, Wellman SS, Bolognesi MP, Seyler TM. Short Stay Arthroplasty Is Not Associated with Increased 90-Day Complications. Video Presentation . Southern Orthopaedic Association. 2020  2020
  • Wu CJ, Ryan SP, Plate FJ, Hinton Z, Howell C, Bolognesi MP, Jiranek WA, Seyler TM. Case Complexity Modifier Is Warranted For Primary Total Knee Arthroplasty. Video Presentation. Southern Orthopaedic Association. 2020  2020
  • Alman BA, Ryan SP. Is Surgery Needed for Desmoid Tumors (Aggressive Fibromatosis)? Results of Surgery to Improve Function. Poster Presentation. American Academy of Orthopaedic Surgeons. 2019  2019
  • Belay ES, Penrose C, Ryan SP, Wellman SS, Bolognesi MP, Seyler TM. Increased Risk of Transfusion in Total Hip and Knee Arthroplasty With Use of SSRI. Podium Presentation. 2019  2019
  • Bergen MA, Ryan SP, Hong CS, Bolognesi MP, Seyler TM. Conversion Total Knee Arthroplasty: A Distinct Surgical Procedure with Increased Resource Utilization and Risk. Poster Presentation. American Academy of Orthopaedic Surgeons. 2019  2019
  • Black CS, Goltz DE, Ryan SP, Fletcher AN, Wellman SS, Bolognesi MP, Attarian DE, Jiranek WA, Seyler TM. At What Cutoff Value Does Albumin Best Predict Poor TJA Outcomes? Podium Presentation. Eastern Orthopaedic Association. 2019  2019
  • Black CS, Goltz DE, Ryan SP, Fletcher AN, Wellman SS, Bolognesi MP, Attarian DE, Jiranek WA, Seyler TM. Protein Power: The Role of Malnutrition in 90-day Outcomes after total Joint Arthroplasty. Podium Presentation. Southern Orthopaedic Association. 2019  2019
  • Bradley K, Ryan SP, Penrose C, Grant S, Wellman SS, Attarian DE, Bolognesi MP. Tranexamic Acid vs. Aminocaproic Acid in Total Knee Arthroplasty: A Randomized Controlled Trial. Podium Presentation. American Academy of Orthopaedic Surgeons. 2019  2019
  • Bradley K, Ryan SP, Penrose C, Grant S, Wellman SS, Attarian DE, Bolognesi MP. Tranexamic Acid vs. Epsilon-Aminocaproic Acid in Total Hip Arthroplasty: Effectiveness, Safety, and Cost Analysis. Poster Presentation. American Academy of Orthopaedic Surgeons. 2019  2019
  • Goltz DE, Ryan SP, Howell C, Easley M, Seyler TM, Adams SB. Patients at Risk for Exceeding Comprehensive Care for Joint Replacement Cost Targets After Total Ankle Arthroplasty. Podium Presentation. American Academy of Orthopaedic Surgeons. 2019  2019
  • Goltz DE, Ryan SP, Howell CB, Attarian DE, Bolognesi MP, Seyler TM. A Comprehensive Tool Predicts Discharge Location After Total Joint Arthroplasty. Podium Presentation. Eastern Orthopaedic Association. 2019  2019
  • Goltz DE, Ryan SP, Howell CB, Easley ME, Seyler TM, Adams SB. Total Ankle Arthroplasty and the CJR Model: Patients At Risk for Exceeding Cost Targets. Podium Presentation and recipient of Thomas R. Bowen, MD Award. Eastern Orthopaedic Association. 2019  2019
  • Goltz DE, Ryan SP, Howell CB, Jiranek WA, Attarian DE, Bolognesi MP, Seyler TM. A Predictive Model for Patient Discharge to Post-Acute Care After Total Joint Arthroplasty. Poster Presentation. Travel Award Winner-Presented by Goltz DE. Park City Hip and Knee. 2019  2019
  • Hong CS, Penrose CT, Ryan SP, Wellman SS, Bolognesi MP, Seyler TM. Sequential Total Joint Arthroplasties: Are We Learning? Podium Presentation. 2019  2019
  • Kildow BJ, Danilkowicz R, Ryan SP, Lazarides AL, Jiranek WA, Bolognesi MP, Seyler TM. Polymerase Chain Reaction Multiplex Provides Minimal Utility in Periprosthetic Joint Infection (PJI) Diagnosis. Podium Presentation. American Association of Hip and Knee Surgeons (AAHKS). 2019  2019
  • Kildow BJ, Vovos TJ, Lazarides A, Ryan SP, Seyler TM. Prior Hip Arthroscopy Increases Risk for Total Hip Arthroplasty Complications: A Matched-Controlled Study. Podium Presentation. American Academy of Orthopaedic Surgeons. 2019  2019
  • Padilla JA, Long WJ, Gabor JA, Ryan SP, Seyler TM, Schwarzkopf R. Total Hip Arthroplasty for Femoral Neck Fracture: The Economic Implications of Orthopaedic Subspecialty Training. Poster presentation. American Association of Hip and Knee Surgeons (AAHKS). 2019  2019
  • Ryan SP, Bergen MA, Hong CS, Formby PM, Bolognesi MP, Seyler TM. 90-day Emergency Department Visits Following Total Joint Arthroplasty: Risk Factors and Causes for Return. Podium Presentation. American Academy of Orthopaedic Surgeons. 2019  2019
  • Ryan SP, DiLallo M, Klement MR, Luzzi AJ, Chen AF, Seyler TM. Above Knee Amputation Following Total Knee Arthroplasty Results In Worse Than Expected Functional Outcomes. Poster Presentation. American Academy of Orthopaedic Surgeons. 2019  2019
  • Ryan SP, Goltz DE, Howell C, Attarian DE, Bolognesi MP, Seyler TM. Predicting Costs Exceeding Bundled Payment Targets for Total Knee Arthroplasty. Poster Presentation. American Academy of Orthopaedic Surgeons. 2019  2019
  • Ryan SP, Goltz DE, Howell C, Jiranek WA, Bolognesi MP, Wellman SS, Attarian DE, Seyler TM. Predicting 90-day Readmission After Total Joint Arthroplasty. Podium Presentation. Piedmont Orthopedic Society. 2019  2019
  • Ryan SP, Goltz DE, Howell CB, Attarian DE, Bolognesi MP, Seyler TM. Skilled Nursing Facilities: The Time For Selective Partnerships is Now! Poster Presentation. American Academy of Orthopaedic Surgeons. 2019  2019
  • Ryan SP, Goltz DE, Howell CB, Wellman SS, Bolognesi MP, Seyler TM. Simultaneous Bilateral total Knee Arthroplasty Does Not Increase 90-Day Hospital Returns. Poster Presentation. American Academy of Orthopaedic Surgeons. 2019  2019
  • Ryan SP, Goltz, DE, Bolognesi MP, Attarian DE, Wellman SS, Seyler TM. Elixhauser Comorbidities Can Predict Medical Severity-Diagnosis Related Group Classification in Total Joint Arthroplasty. Podium Presentation. American Academy of Orthopaedic Surgeons. 2019  2019
  • Ryan SP, Hong CS, Bergen MA, Goltz DE, Bolognesi MP, Seyler TM. Antibiotic Resistance Increases During Treatment of Prosthetic Joint Infection. Poster Presentation. American Academy of Orthopaedic Surgeons. 2019  2019
  • Ryan SP, Hopkins T, Wellman SS, Jiranek WA, Bolognesi MP, Seyler TM. Undersedation During Total Hip Arthroplasty Reduction Results in Worse Patient Outcomes. Podium Presentation. Southern Orthopaedic Association. 2019  2019
  • Ryan SP, Hopkins T, Wellman SS, Jiranek WA, Bolognesi MP, Seyler TM. Undersedation During Total Hip Arthroplasty Reduction Results in Worse Patient Outcomes. Poster Presentation. Eastern Orthopaedic Association. 2019  2019
  • Ryan SP, Howell CB, Bergen MA, Hong CS, Bolognesi MP, Seyler TM. Post-operative Arthroplasty Outcomes are Unchanged By Secure Messaging. Poster Presentation. American Academy of Orthopaedic Surgeons. 2019  2019
  • Ryan SP, Kildow BJ, Tan T, Bolognesi MP, Parvizi J, Seyler TM. Single vs Multiple Doses of Prophylactic Antibiotics in Orthopaedic Surgery: A Meta-Analysis. Poster Presentation and Podium Presentation at MSIS Specialty Day. American Academy of Orthopaedic Surgeons. 2019  2019
  • Ryan SP, Plate JF, Black C, Howell C, Jiranek WA, Bolognesi MP, Seyler TM. Value-Based Care Has Not Resulted in Biased Patient Selection: Analysis of A Single Center’s Experience in the CJR Bundle. Podium Presentation. Eastern Orthopaedic Association. 2019  2019
  • Ryan SP, Politzer CS, Hong CS, Bergen MA, Bolognesi MP, Seyler TM. Patent Foramen Ovale Is Independently Associated With Cerebrovascular Accident After Total Knee Arthroplasty. Podium Presentation. Presented by Hong, CS. American Academy of Orthopaedic Surgeons. 2019  2019
  • Ryan SP, Politzer CS, Jiranek WA, Wellman SS, Bolognesi MP, Seyler TM. Albumin Outperforms ASA Score for Predicting Several Postoperative Complications Following Total Joint Arthroplasty. Podium Presentation. American Academy of Orthopaedic Surgeons. 2019  2019
  • Ryan SP, Puviindran V, Nadesan P, Kwak Y, Alman BA. Combination Chemotherapy for Aggressive Fibromatosis: Preliminary Results From Beta-Catenin inhibitor, Dexamethasone, and Focal Adhesion Kinase Inhibitor. Podium Presentation. American Academy of Orthopaedic Surgeons. 2019  2019
  • Ryan SP, Steele JR, Plate JF, Attarian DE, Seyler TM, Bolognesi MP, Wellman SS. All-polyethylene tibia: An Opportunity for Value Based Care in Bundled Reimbursement Initiatives. Poster Presentation. Travel Award Winner-Presented by Steele JR. Park City Hip and Knee. 2019  2019
  • Ryan SP, Wellman SS, Jiranek WA, Attarian DE, Bolognesi MP, Seyler TM. The Impact of Medical Education on Patient Satisfaction: An Asset or A Liability? Poster Presentation. American Academy of Orthopaedic Surgeons. 2019  2019
  • Tan T. Shohat N, Rondon A, Goswami K, Ryan SP, Seyler TM, Parvizi J. Perioperative Antibiotic Prophylaxis in Total Joint Arthroplasty: A Single Dose is as Effective as Multiple Doses. Podium Presentation. American Academy of Orthopaedic Surgeons. 2019  2019
  • Vovos TJ, Hong CS, Ryan SP, Howell C, Risoli T, Attarian DE, Seyler TM. Predicting Patient Dissatisfaction Following Total Joint Arthroplasty: A Review of 3,593 HCAHPS Survey Responses. Poster Presentation. American Academy of Orthopaedic Surgeons. 2019  2019
  • Bergen MA, Ryan SP, Hong CS, Bolognesi MP, Seyler TM. Conversion Total Knee Arthroplasty: A Distinct Surgical Procedure with Increased Resource Utilization and Risk. Poster Presentation. American Association of Hip and Knee Surgeons (AAHKS). 2018  2018
  • Bergen MA, Ryan SP, Hong CS, Bolognesi MP, Seyler TM. Revision Total Joint Arthroplasty: Final Stop Tertiary Referral Center. Poster Presentation. American Association of Hip and Knee Surgeons (AAHKS). 2018  2018
  • Bergen MA, Ryan SP, Politzer C, Green CL, Hong CS, Bolognesi MP, Seyler TM. Albumin vs. ASA Stratifies Preoperative Risks in Total Knee Arthroplasty. Podium Presentation. Southern Orthopaedic Association. 2018  2018
  • Catanzano AA, Dial B, Lazarides A, Ryan S, Esposito V, Garza S, Erickson M, Mendoza-Lattes S. Metastatic Spine Disease in Patients without Definitive Operative Indications. Podium Presentation. Musculoskeletal Tumor Society. 2018  2018
  • DiLallo M, Ryan SP, Jiranek WA, Attarian DE, Seyler TM. Conversion vs. Primary Total Hip Arthroplasty: Increased Cost of Care and Peri-operative Complications. Poster Presentation. American Academy of Orthopaedic Surgeons. 2018  2018
  • Goltz DE, Ryan SP, Howell C, Attarian DE, Bolognesi MP, Jiranek WA, Seyler TM. Malnutrition Status and 90-day Outcomes Following Total Joint Arthroplasty. Poster Presentation. 2018  2018
  • Goltz DE, Ryan SP, Howell C, Attarian DE, Bolognesi MP, Seyler TM. Predicting Risk of Patient Costs Exceeding CJR Targets for Total Hip Arthroplasty. Poster Presentation. American Association of Hip and Knee Surgeons (AAHKS). 2018  2018
  • Goltz DE, Ryan SP, Howell C, Attarian DE, Bolognesi MP, Wellman SS, Seyler TM. Candidates for Outpatient Total Knee Arthroplasty: Factors Associated With Short Length of Stay. Poster Presentation. American Association of Hip and Knee Surgeons (AAHKS). 2018  2018
  • Hong CS, Politzer C, Ryan SP, Bergen MA, Bolognesi MP, Seyler TM. Patent Foramen Ovale Increases Complications in Total Joint Arthroplasty. Poster Presentation. Southern Orthopaedic Association. 2018  2018
  • Hong CS, Ryan SP, Bergen MA, Goltz DE, Bolognesi MP, Seyler TM. Antibiotic Resistance Increases During Treatment of Prosthetic Joint Infection. Podium Presentation. Musculoskeletal Infection Society. 2018  2018
  • Kildow BJ, Howell E, Karas V, Ryan SP, Bolognesi MP, Seyler TM. When Should Complete Blood Count Tests Be Ordered Following Primary Total Knee Arthroplasty. Podium Presentation. 2018  2018
  • Kildow BJ, Ryan SP, Vovos TJ, Lazarides A, Bolognesi MP, Seyler TM. Next Generation Sequencing is more Sensitive than Polymerase Chain Reaction Multiplex in the Diagnosis of Periprosthetic Joint Infection. Poster Presentation. Top 25. Musculoskeletal Infection Society. 2018  2018
  • Ryan SP presenting on behalf of Kleeman L, Goltz DE, Mammarappallil J, Seyler TM, Wellman SS, Attarian DE, Bolognesi MP. The Role of Early and Late Revision in Metal-on Metal Total Hip Arthroplasty. Podium Presentation. Southern Orthopaedic Association. 2018  2018
  • Ryan SP, Bergen MA, Hong CS, Formby PM, Bolognesi MP, Seyler TM. 90-day Emergency Department Visits Following Total Joint Arthroplasty: Risk Factors and Causes for Return. Poster Presentation. American Association of Hip and Knee Surgeons (AAHKS). 2018  2018
  • Ryan SP, DiLallo M, Klement MR, Luzzi AJ, Chen AF, Seyler TM. Above Knee Amputation Following Total Knee Arthroplasty Results In Worse Than Expected Functional Outcomes. Poster Presentation. American Association of Hip and Knee Surgeons (AAHKS). 2018  2018
  • Ryan SP, DiLallo M, Klement MR, Luzzi AJ, Chen AF, Seyler TM. Above Knee Amputation Following Total Knee Arthroplasty Results In Worse Than Expected Functional Outcomes. Poster Presentation. Top 25. Musculoskeletal Infection Society. 2018  2018
  • Ryan SP, DiLallo M, McCoy K, Seyler TM. Diabetes and Total Joint Arthroplasty: Infection Risk May Not Be Predictable by Markers of Glycemic Control. Poster presentation. American Academy of Orthopaedic Surgeons. 2018  2018
  • Ryan SP, Goltz DE, Howell C, Attarian DE, Bolognesi MP, Seyler TM. Predicting Costs Exceeding Bundled Payment Targets for Total Knee Arthroplasty. Poster Presentation. American Association of Hip and Knee Surgeons (AAHKS). 2018  2018
  • Ryan SP, Goltz DE, Howell C, Attarian DE, Bolognesi MP, Wellman SS, Jiranek WA, Seyler TM. Predicting 90-day ED Visits After Total Joint Arthroplasty: A Novel Risk Calculator. Poster Presentation. American Association of Hip and Knee Surgeons (AAHKS). 2018  2018
  • Ryan SP, Goltz DE, Howell C, Attarian DE, Jiranek WA, Seyler TM. Arthroplasty Surgeons May Decrease Cost of Care for Hip Fracture Patients. Poster Presentation. American Association of Hip and Knee Surgeons (AAHKS). 2018  2018
  • Ryan SP, Goltz DE, Wellman SS, Jiranek WA, Bolognesi MP, Seyler TM. Medicaid Status Correlates With Increased Resource Utilization Following Total Hip Arthroplasty. Poster Presentation. American Association of Hip and Knee Surgeons (AAHKS). 2018  2018
  • Ryan SP, Howell C, Bergen MA, Hong CS, Bolognesi MP, Seyler TM. Does Secure Messaging Decrease Post-operative ED visits and Readmission? Poster Presentation. Southern Orthopaedic Association. 2018  2018
  • Ryan SP, Howell C, Wellman SS, Attarian DE, Bolognesi MP, Jiranek WA, Seyler TM. Pre-operative Optimization Checklists Within the CJR Bundle Have Not Decreased Hospital Returns. Podium Presentation. American Association of Hip and Knee Surgeons (AAHKS). 2018  2018
  • Ryan SP, Kildow BJ, Tan TL, Parvizi J, AHHKS Research Committee, Bolognesi MP, Seyler TM. Single vs. Multiple Doses of Prophylactic Antibiotics in Orthopaedic Surgery: A Meta-Analysis. Podium Presentation. Musculoskeletal Infection Society. 2018  2018
  • Ryan SP, Politzer C, DiLallo M, Bolognesi MP, Seyler TM. The Role of Hepatitis C Viral Load and Total Joint Arthroplasty Complication Rates. Podium Presentation. American Academy of Orthopaedic Surgeons. 2018  2018
  • Ryan SP, Politzer C, Fletcher AN, Bolognesi MP, Seyler TM. Pre-operative Hypoalbuminemia Predicts Poor Short-term Outcomes for Hip Fracture Surgery. Podium presentation. American Academy of Orthopaedic Surgeons. 2018  2018
  • Ryan SP, Politzer C, Jiranek WA, Wellman SS, Bolognesi MP, Seyler TM. Albumin Outperforms ASA Score For Predicting Several Postoperative Complications. Poster Presentation. American Association of Hip and Knee Surgeons (AAHKS). 2018  2018
  • Ryan SP, Vovos TJ, Hong CS, Bergen MA, Formby PM, Bolognesi MP, Seyler TM. Treatment of Prosthetic Joint Infection: Established Patient Relationships May Impact Medical Decision Making. Podium Presentation. Eastern Orthopaedic Association. 2018  2018
  • Ryan SP, Vovos TJ, Hong CS, Bergen MA, Formby PM, Bolognesi MP, Seyler TM. Treatment of Prosthetic Joint Infection: Established Patient Relationships May Impact Medical Decision Making. Poster Presentation. Top 25. Musculoskeletal Infection Society. 2018  2018
  • Tan TL, Shohat N, Rondon A, Foltz C, Goswami K, Ryan SP, Seyler TM, Parvizi J. Perioperative Antibiotic Prophylaxis in Total Joint Arthroplasty: A Single-dose is as Effective as Multiple-doses. Podium Presentation. American Association of Hip and Knee Surgeons (AAHKS). 2018  2018
  • Tan TL, Shohat N, Rondon AJ, Foltz C, Goswami K, Ryan SP, Seyler TM, Parvizi J. Perioperative Antibiotic Prophylaxis in Total Joint Arthroplasty: A Single-dose is as Effective as Multiple-doses. Podium Presentation. Musculoskeletal Infection Society. 2018  2018
  • Vovos TJ, Ryan SP, Hong CS, Howell C, Risoli T, Attarian DE, Seyler TM. The HCAHPS Survey: Is Predicting Patient Dissatisfaction Possible? Poster Presentation. American Association of Hip and Knee Surgeons (AAHKS). 2018  2018
  • Vovos TJ, Ryan SP, Hong CS, Howell C, Risoli T, Attarian DE, Seyler TM. The HCAHPS Survey: Is Predicting Patient Dissatisfaction Possible? Poster Presentation. Eastern Orthopaedic Association. 2018  2018
  • Ryan SP, DiLallo M, McCoy K, Seyler TM. Diabetes and Total Joint Arthroplasty: Infection Risk May Not Be Predictable by Markers of Glycemic Control. Poster presentation. Eastern Orthopaedic Association. 2017  2017
  • Ryan SP, Dillalo M, McCoy K, Seyler TM. Diabetes and Total Joint Arthroplasty: Infection Risk May Not Be Predictable by Markers of Glycemic Control. Podium presentation. Musculoskeletal Infection Society. 2017  2017
  • Ryan SP, Puviindran V, Nadesan P, Kwak Y, Alman BA. Combination Chemotherapy for Aggressive Fibromatosis: Preliminary Results From Beta-Catenin inhibitor, Dexamethasone, and Focal Adhesion Kinase Inhibitor. Poster presentation. Connective Tissue Oncology Society (CTOS). 2017  2017
  • Ryan SP, Visgauss JD, Kerr DL, Helmkamp J, Said N, Vinson EN, Li X, Jung S, Eward WC, Brigman BE. Using MRI to Distinguish Lipoma vs. Liposarcoma in the Era of MDM2 FISH: Can Experienced Observers Tell the Difference? Poster presentation. Connective Tissue Oncology Society (CTOS). 2017  2017
  • Ryan SP, Visgauss JD, Kerr DL, Helmkamp J, Said N, Vinson EN, Li X, Jung S, Eward WC, Brigman BE. Using MRI to Distinguish Lipoma vs. Liposarcoma in the Era of MDM2 FISH: Can Experienced Observers Tell the Difference? Poster presentation. Musculoskeletal Tumor Society. 2017  2017
• 

  Service to the Profession

  • AJRR Publication Committee. 2021  2021
  • AJRR Young Physician Committee. AAOS. 2021  2021
• 

  Service to Duke

  • Duke. Comanagement. 2021  2021
• 

  Clinical Activities

  • Adult Reconstruction: Total Hip and Knee Primary and Revision Arthroplasty, and Periacetabular Osteotomies

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