Gregory James, MD

James M. Gregory, MD

Contact
713-486-1700
713-467-6682 fax

Biography

James M. Gregory, MD, is a board-certified, fellowship-trained shoulder and elbow surgeon and professor in the Department of Orthopedic Surgery at McGovern Medical School at UTHealth Houston (external link). He specializes in diagnosing and treating the full spectrum of shoulder and elbow conditions in patients of all ages — from young athletes to older adults. 

Clinical Interests 

Dr. Gregory cares for patients with persistent pain, sports injuries and complex orthopedic conditions. His clinical interests include: 

  • Shoulder instability and dislocation
  • Rotator cuff tears and rotator cuff repair 
  • Shoulder arthritis and shoulder replacement, including total shoulder replacement and reverse shoulder replacement (shoulder arthroplasty) 
  • Biceps and triceps tendon injuries 
  • Frozen shoulder (adhesive capsulitis) 
  • Elbow injuries in throwing and overhead athletes, including injuries that may require UCL reconstruction (Tommy John surgery) 

He cares for young athletes recovering from sports injuries to older adults managing arthritis or considering shoulder replacement surgery. In particular, Dr. Gregory understands the unique demands placed on throwing and overhead athletes. These athletes rely on coordinated shoulder and elbow movement to perform at their best. Therefore, he develops treatment plans that address each athlete’s injury, performance goals and safe return to activity. 

Approach to Care 

Treatment begins with a careful evaluation of the patient’s symptoms, condition and personal goals. When appropriate, Dr. Gregory uses nonoperative treatments to reduce pain and improve movement. If surgery offers the best path forward, he has extensive experience with complex arthroscopic and open surgical techniques. This broad expertise allows him to personalize care for each patient. 

Research Interests 

In addition to providing clinical care, Dr. Gregory maintains an active interest in clinical research. His research interests focus on shoulder and elbow care, treatment approaches, recovery and patient outcomes. Through this work, he contributes to the continued study of orthopedic care and applies current medical knowledge to his clinical practice. 

As an orthopedic surgeon and faculty member, Dr. Gregory combines specialized patient care with research and academic medicine. Whether a patient is managing ongoing pain, recovering from an injury or considering surgery, he works to identify an effective treatment plan that supports long-term function. 

Schedule an Appointment 

Dr. Gregory sees patients at our orthopedic clinics in Memorial Villages and the Texas Medical Center. If you would like to schedule a consultation, you can call the office at 713-486-7500 or request an appointment online. (external link) 

Education

Undergraduate Degree
Duke University, Durham, North Carolina
Medical School
University of Pennsylvania, Philadelphia, Pennsylvania
Internship
General Surgery Internship, Rush University Medical Center, Chicago, Illinois
Residency
Orthopaedic Surgery Residency, Rush University Medical Center, Chicago, Illinois
Fellowship
Shoulder and Elbow Surgery Fellowship, Washington University, Saint Louis, Missouri

Areas of Interest

Clinical Interests

Shoulder and Elbow Surgery

Dr. Gregory specializes in the nonoperative and surgical treatment of shoulder and elbow conditions. His clinical interests include:

Shoulder

  • AC joint separation
  • Frozen shoulder (adhesive capsulitis)
  • Labral tears
  • Proximal humerus fractures
  • Rotator cuff repair
  • Shoulder arthroscopy
  • Shoulder instability
  • Shoulder stiffness
  • Tendon transfers
  • Throwing and overhead athlete care
  • Total shoulder replacement (total shoulder arthroplasty)
  • Reverse shoulder replacement (reverse shoulder arthroplasty)

Elbow

  • Biceps tendon rupture
  • Cubital tunnel syndrome (ulnar nerve compression)
  • Elbow arthroscopy
  • Elbow fractures
  • Elbow instability
  • Elbow replacement (elbow arthroplasty)
  • Elbow stiffness
  • Golfer’s elbow
  • Sports-related elbow injuries
  • Tennis elbow
  • Tommy John surgery (ulnar collateral ligament reconstruction)

Publications

Visit the PubMed profile page

PUBLICATIONS:

 Abstracts

  • Gregory JM, Sarkar K, Miller F. Developing Methodology to Assess the Possible Role of Microchimerism in Autoimmune Disease. Poster presentation at NIH Summer Research Poster Day, Bethesda, MD. 2003.
  • Sherman SL, Mather R, Lin EC, Dishkin J, Gregory JM, Harwood D, Cole BJ, Romeo AA, Verma NN. Biomechanical Comparison of Transosseous, Suture Anchor, and Pec Button Repair for Pectoralis Major Rupture. ePoster presentation, European Society for Surgery of the Shoulder and the Elbow (SECEC/ESSSE) Annual Meeting, Lyon, France. September 14-17, 2011
  • Sherman SL, Mather R, Lin E, Gregory JM, Dishkin J, Harwood DP, Romeo AA, Verma N. Biomechanical Analysis of the Pectoralis Major and Comparison of Techniques for Tendo-osseous Repair. Poster presentation, American Shoulder and Elbow Surgeons (ASES) Closed Meeting, October 12-15, 2011
  • *Sherman SL, Mather R, Lin E, Gregory JM, Dishkin J, Harwood DP, Romeo AA, Verma N. Biomechanical Analysis of the Pectoralis Major and Comparison of Techniques for Tendo-osseous Repair. American Academy of Orthopaedic Surgeons (AAOS) Annual Meeting, San Francisco, CA. February 7-11, 2012.
  • Sherman SL, Mather R, Lin E, Gregory JM, Dishkin J, Harwood DP, Romeo AA, Verma N. Biomechanical Analysis of the Pectoralis Major and Comparison of Techniques for Tendo-osseous Repair. ePoster presentation, Arthroscopy Association of North America (AANA) Annual Meeting, May 17-19, 2012.
  • Gregory JM, Harwood DP, Gochanour E, Sherman SL, Romeo AA. Clinical Outcomes of Revison Proximal Biceps Tenodesis. Rush Orthopaedics Thesis Day June 15, 2012.
  • Gregory JM, Harwood DP, Sherman SL, Romeo AA. Biceps Tenodesis in Young Overhead Athletes. Rush Orthopaedics Thesis Day June 15, 2012.
  • Sherman SL, Mather R, Lin E, Gregory JM, Dishkin J, Harwood DP, Romeo AA, Verma N. Biomechanical Analysis of the Pectoralis Major and Comparison of Techniques for Tendo-osseous Repair. Poster presentation, AOSSM Annual Meeting Sept 12-15, 2012.
  • Sherman SL, Mather R, Lin E, Gregory JM, Dishkin J, Harwood DP, Romeo AA, Verma N. Biomechanical Analysis of the Pectoralis Major and Comparison of Techniques for Tendo-osseous Repair. ePoster presentation, Congress of Arthroscopy and Sports Medicine (CASM) Annual Meeting Nov 8-11, 2012.
  • Gregory JM, Klosterman E, Thomas JM, Hammond J, Shewman EF, Wang VM, Verma N, Romeo AA. Suture Technique Influences the Biomechanical Integrity of Pectoralis Major Repairs. Rush Orthopaedics Thesis Day June 21, 2013.
  • Sardesai N, Gregory JM, Sorkin A. Periprosthetic Complications after Treatment of Trochanteric Hip Fractures with a Short Intramedullary Nail. Rush Orthopaedics Thesis Day June 21, 2013.
  • Gregory JM, Klosterman E, Thomas JM, Hammond J, Shewman EF, Wang VM, Verma N, Romeo AA. Biomechanical Comparison of Suture Techniques in Pectoralis Major Repair. ePoster presentation, American Shoulder and Elbow Surgeons (ASES) Closed Meeting, October 12-15, 2013.
  • *Gregory JM, Klosterman E, Thomas JM, Hammond J, Shewman EF, Wang VM, Verma N, Romeo AA. Suture Technique Influences the Biomechanical Integrity of Pectoralis Major Repairs. American Academy of Orthopaedic Surgeons (AAOS) Annual Meeting, New Orleans, LA. March 14, 2014.
  • *Sardesai N, Gregory JM, Sorkin A. Periprosthetic Complications after Treatment of Trochanteric Hip Fractures with a Short Intramedullary Nail. Mid-America Orthopaedic Association Annual Meeting, San Antonio, TX. April 24, 2014.
  • Woodson J, Isamaily S, Fullick R, Noble P, Gregory JM. Eccentric Reaming to Correct Posterior Glenoid Erosion Removes Subchondral Bone. Poster presentation. Mid-American Orthopaedic Association (MAOA) Annual Meeting, April 19-23, 2017.
  • *Harris S, Gregory JM. Management of a Patient with Lateral Elbow Pain Secondary to Acute Adverse Neural Irritation. American Physical Therapy Assocation (APTA) Combined Sections Meeting (CSM), New Orleans, LA. February 21-24, 2018.
  • Wayne CD, Wetzig AM, Bailey L, Warth RJ, Gregory JM. Quantification of Patient-Level Costs in Outpatient Total Shoulder Arthroplasty. UTRGV School of Medicine Research Symposium – _Health Disparities 2018: Closing the Gap. McAllen, TX. September 15, 2018.
  • Matre PR, Kozemchak A, Pickrell A, Thomson A, Warth RJ, Gregory JM, Huard J. Isolation and Characterization of Bursa-Derived Mesenchymal Stem Cells for Tendon Repair. Orthopaedic Research Society (ORS) Annual Meeting, Austin, TX. February 2-5, 2019.
  • Warth RJ, Kerl CG, Hall M, Moody D, Bach JP, Zandiyeh P, Tashman S, Gregory JM. Reliability Of UTE-T2* MRI Mapping of the Supraspinatus Tendon. Orthopaedic Research Society (ORS) Annual Meeting, Austin, TX. February 2-5, 2019.
  • *Warth RJ, Matre PR, Kozemchak A, Supak DN, Huard J, Harner CD, Gregory JM. The Subacromial Bursa is a Viable Source of Autologous Mesenchymal Stem Cells for Rotator Cuff Repair. American Orthopaedic Society for Sports Medicine (AOSSM) Annual Meeting, Boston, MA. July 11-14, 2019.
  • Willenbring T, DeVos MD, Warth RJ, Gregory JM. Do Clinical Practice Guidelines Change Practice Patterns? An Examination of Acromioplasty with Arthroscopic Rotator Cuff Repair. American Shoulder and Elbow Surgeons (ASES) Annual Meeting. October 2-3, 2020.
  • Willenbring TJ, Warth RJ, Gregory JM. Do Clinical Practice Guidelines Change Practice Patterns? An Examination of Acromioplasty with Arthroscopic Rotator Cuff Repair. McGovern Medical School Department of Orthopaedic Surgery Research Day. June 11, 2021.
  • Willenbring TJ, DeVos MJ, Warth RJ, Gregory JM. Is Outpatient Shoulder Arthroplasty Safe for Older Adults? A Comparison of Readmissions and Complications in Inpatient and Outpatient Settings. McGovern Medical School Department of Orthopaedic Surgery Research Day. June 11, 2021.
  • Willenbring TJ, Epner EC, Warth RJ, Gregory JM. Recent Trends in Ulnar Collateral Ligament Repair and Reconstruction. McGovern Medical School Department of Orthopaedic Surgery Research Day. June 11, 2021.
  • *Willenbring TJ, DeVos MJ, Kozemchak AM, Warth RJ, Gregory JM. Is Outpatient Shoulder Arthroplasty Safe in Patients Over 65 Years of Age? A Comparison of Readmissions and Complications in Inpatient and Outpatient Settings. American Academy of Orthopaedic Surgeons (AAOS) Annual Meeting, San Diego, CA. August 31, 2021.
  • *Wang G, Fiedler AK, Warth RJ, Bailey L, Shupe PG, Gregory JM. Reliability of Video-Guided Telemedicine Shoulder Examinations: A Comparison of Examination Findings Between Virtual and Physical Modalities. American Academy of Orthopaedic Surgeons (AAOS) Annual Meeting, Chicago, IL. March 25, 2022.
  • Wang G, Fiedler AK, Warth RJ, Bailey L, Shupe PG, Gregory JM. Reliability of Video-Guided Telemedicine Shoulder Examinations. American Orthopaedic Society for Sports Medicine (AOSSM) Annual Meeting, Colorado Springs, CO. July 14-17, 2022.
  • Willenbring T, Epner E, Warth RJ, Gregory JM. Increasing Rates of UCL Repair Outpace Reconstruction in Isolated Injuries: Review of a Texas Surgical Database. American Shoulder and Elbow Surgeons (ASES) Annual Meeting. October 6-9, 2022.
  • Feinstein S, Svetgoff R, Harmon J, Siahaan J, Ngo D, Arambula Z, Walsh D, Nembhard O, Flores S, Fullick R, Shupe P, Gregory B, Gregory JM. The Effect of Subacromial Epinephrine Injection on Visualization during Shoulder Arthroscopy. Texas Chapter of American College of Sports Medicine (TACSM) Annual Meeting, Waco, TX. Feb 23-24, 2023.
  • Gregory JM, Siahaan J, Urvoy M. Pre-operative Metaphyseal Cancellous Bone Density is Associated with Intra-operative Conversion to Stemmed Total Shoulder Arthroplasty. American Academy of Orthopaedic Surgeons (AAOS) Annual Meeting, Las Vegas, NV. March 7-11, 2023.
  • Gregory JM, Ybarra C, Liao Z, Kumaravel M, Patel S, Warth RJ. Clinical Outcomes of Rotator Cuff Repair with Subacromial Bursa Re-Implantation: A Retrospective Cohort Study. American Academy of Orthopaedic Surgeons (AAOS) Annual Meeting, Las Vegas, NV. March 7-11, 2023.
  • Feinstein S, Svetgoff R, Harmon J, Siahaan J, Ngo D, Arambula Z, Walsh D, Nembhard O, Flores S, Fullick R, Shupe P, Gregory B, Gregory JM. The Effect of Subacromial Epinephrine Injection on Visualization during Shoulder Arthroscopy. American Orthopaedic Society for Sports Medicine (AOSSM) Annual Meeting, Washington, DC. July 13-15, 2023.
  • *Zandiyeh P, Gregory JM. Kinematic Abnormalities in the Shoulder Girdle after Conservative or Surgical Treatment of the High-grade Acromioclavicular Joint Disruption. American Orthopaedic Society for Sports Medicine (AOSSM) Annual Meeting, Washington, DC. July 13-15, 2023.
  • Harmon J, Siahaan J, Ngo D, Arambula Z, Svetgoff R, Walsh D, Nembhard O, Fullick R, Flores S, Gregory B, Shupe P, Gregory JM, Feinstein S. Poster 163: The Effect of Subacromial Epinephrine Injection on Visualization during Shoulder Arthroscopy. Orthop J Sports Med. 2023 Jul; 11(7 suppl3): 2325967123S00149.
  • *Feinstein S, Svetgoff R, Harmon J, Siahaan J, Ngo D, Arambula Z, Walsh D, Nembhard O, Flores S, Fullick R, Shupe P, Gregory B, Gregory JM. The Effect of Subacromial Epinephrine Injection on Visualization during Shoulder Arthroscopy. Western Orthopaedic Association (WOA) Annual Meeting, Boise, ID. August 5, 2023.
  • Figueroa A, Siahaan J, Harmon J, Zandiyeh P, Brooks WC, Gregory JM. Early Postoperative MRI Comparison of UTE T2* Values and Muscle Volume following Rotator Cuff Repair with and without Autologous Subacromial Bursal Tissue Augmentation. American Academy of Orthopaedic Surgeons (AAOS) Annual Meeting, Las Vegas, NV. February 12-16, 2024.
  • Figueroa A, Bugajski T, Gregory JM, Zandiyeh P. Evaluating Implant Positioning Accuracy in Reverse Shoulder Arthroplasty Using 3D Templating and Dynamic Biplane Video Radiography. Orthopedic Research Society (ORS) Annual Meeting. Phoenix, AZ. February 7-11, 2025
  • *Figueroa A, Bugajski T, Gregory JM, Zandiyeh P. Does Pre-operative Planning Software Predict the Post-operative Ranges of Motion in the Glenohumeral Joint after Reverse Shoulder Arthroplasty: A Biplanar Video Radiography Study. Orthopedic Research Society (ORS) Annual Meeting. Phoenix, AZ. February 7-11, 2025.
  • *Figueroa A, Bugajski T, Gregory JM, Zandiyeh P. Pre-operative Planning Software D_o_e_s_n_’t_ _Predict Post-operative Glenohumeral Ranges of Motion after Reverse Shoulder Arthroplasty: A Biplanar Video Radiography Study. International Society of Arthroscopy, Knee Surgery, and Orthopaedic Sports Medicine (ISAKOS) 15th Biennial Congress. Munich, Germany. June 8-11, 2025
  • *Figueroa A, Bugajski T, Gregory JM, Zandiyeh P. Evaluating Implant Positioning Accuracy in Reverse Shoulder Arthroplasty Using 3D Templating and Dynamic Biplane Video Radiography. International Society of Arthroscopy, Knee Surgery, and Orthopaedic Sports Medicine (ISAKOS)15th Biennial Congress. Munich, Germany. June 8-11, 2025.
  • Fields KE, Siahaan J, Gregory JM. Two-Component Revision Improves Outcomes For Unstable Shoulder Arthroplasty: A Nationwide Database Study. International Society of Arthroscopy, Knee Surgery, and Orthopaedic Sports Medicine (ISAKOS) 15th Biennial Congress. Munich, Germany. June 8-11, 2025
  • Lane M, Siahaan J, Gregory JM. Do Pre-Operative Ct Scans Decrease Risk Of Revision Surgery In Total Shoulder Arthroplasty? A Matched Cohort Analysis Of A National Claims Database. International Society of Arthroscopy, Knee Surgery, and Orthopaedic Sports Medicine (ISAKOS) 15th Biennial Congress. Munich, Germany. June 8-11, 2025
  • Lane M, Siahaan J, Gregory JM. Increased Time Between Acromioclavicular Joint Separation Injury and Surgical Intervention is Associated with Inferior Clinical Outcomes. American Orthopaedic Society for Sports Medicine (AOSSM) Annual Meeting, Nashville, TN. July 10-12, 2025.
  • Gregory JM, Mays M, Harmon J, Zandiyeh P. Impact of Subacromial Bursa Augmentation on Self-Reported and MRI Outcomes in Arthroscopic Rotator Cuff Repair: A Prospective, Blinded, Randomized Clinical Trial. American Orthopaedic Society for Sports Medicine (AOSSM) Annual Meeting, Nashville, TN. July 10-12, 2025.
  • Myers NL, Xing C, Lane MB, Feik ML, Taylor J, Gregory JM. Psychological barriers are present in patients reporting with orthopedic related elbow pain. American Society of Shoulder and Elbow Therapists (ASSET) Annual Meeting, San Diego, CA. October 15-18, 2025.
  • Figueroa A, Bugajski T, Gregory JM, Zandiyeh P. Does Pre-operative Impingement-Free Range of Motion Reflect Post-operative Glenohumeral Motion after Reverse Shoulder Arthroplasty? American Shoulder Elbow Surgeons (ASES) Annual Meeting, San Diego, CA. October 15-18, 2025.
  • Feik ML, Smith AZ, Chen K, Gehring, Z, Myers, NL, Gregory JM. The Forgotten Shoulder Score: Developing a Better Outcome Score for Shoulder Arthroplasty. American Shoulder Elbow Surgeons (ASES) Annual Meeting, San Diego, CA. October 15-18, 2025.
  • Lane M, Siahaan J, Gregory JM. Increased Time Between Acromioclavicular Joint Separation Injury and Surgical Intervention is Associated with Inferior Clinical Outcomes. American Shoulder Elbow Surgeons (ASES) Annual Meeting, San Diego, CA. October 15-18, 2025.
  • *Lee E, Konrath J, Kumaravel M, Gregory JM, Zandiyeh P. Mono- and bi-exponential UTE-T2* longitudinal comparison of rotator cuff repairs augmented with or without autologous subacromial bursa tissue. American Shoulder Elbow Surgeons (ASES) Annual Meeting, San Diego, CA. October 15-18, 2025.
  • *Gregory JM, Smith AZ, Zandiyeh P. Impact of Subacromial Bursa Augmentation on Self-Reported and MRI Outcomes in Arthroscopic Rotator Cuff Repair: A Prospective, Blinded, Randomized Clinical Trial. American Shoulder Elbow Surgeons (ASES) Specialty Day, New Orleans, LA. March 6, 2026.
  • *Konrath J, Wheaton S, Figueroa L, Gregory JM, Zandiyeh P. Coracoclavicular Functional Distance During Shoulder Elevation Movements In Reconstructed Acromioclavicular Joints Versus Non-Operative Treatment. Orthopaedic Research Society (ORS) Annual Meeting, Charlotte, NC. March 27-31, 2026.
  • Konrath J, Wheaton S, Figueroa L, Gregory JM, Zandiyeh P. Muscle Activation Patterns During Shoulder Elevation Following Acromioclavicular Joint Disruption, Surgical Versus Non-Operative Treatment. Orthopaedic Research Society (ORS) Annual Meeting, Charlotte, NC. March 27-31, 2026.
  • Konrath J, Wheaton S, Figueroa L, Gregory JM, Zandiyeh P. An Investigation of The Subacromial Space During Shoulder Elevation Following Surgical Reconstruction Of The Acromioclavicular Joint. Orthopaedic Research Society (ORS) Annual Meeting, Charlotte, NC. March 27-31, 2026.
  • Konrath J, Wheaton S, Figueroa L, Gregory JM, Zandiyeh P. In Vivo Measurement of Coracoclavicular Functional Distance During Shoulder Elevation Following Acromioclavicular Joint Reconstruction. American Orthopaedic Society for Sports Medicine (AOSSM) Annual Meeting, Seattle, WA. July 8-11, 2026.
  • Roylance JS, Brewer MW, Copling SA, Smith MR, Gehring ZA, Guffey T, Kennedy SM, Conway JE, Gregory JM, Myers NL. Clinical Predictors of Baseline PROMIS Categorization in a Shoulder and Elbow Patient Population. American Orthopaedic Society for Sports Medicine (AOSSM) Annual Meeting, Seattle, WA. July 8-11, 2026.
  • Nembhard O, Gregory JM, Berkman E. Safety and Effectiveness of Placental Connective Tissue Matrix Allograft Versus Corticosteroid Injection in Adhesive Capsulitis: A Double-Blinded Prospective Randomized Study. American Orthopaedic Society for Sports Medicine (AOSSM) Annual Meeting, Seattle, WA. July 8-11, 2026.
  • Nembhard O, Gregory JM, Berkman E. Safety and Effectiveness of Placental Connective Tissue Matrix Allograft Versus Corticosteroid Injection in Adhesive Capsulitis: A Double-Blinded Prospective Randomized Study. 16th International Congress on Shoulder and Elbow Surgery (ICSES) Meeting. Vancouver, CA. September 22-25, 2026.
  • Mixed-Reality Visualization in Revision Reverse Shoulder Arthroplasty: A Retrospective Comparative Study. 16th International Congress on Shoulder and Elbow Surgery (ICSES) Meeting. Vancouver, CA. September 22-25, 2026.
  • Implications of Scapulothoracic Rhythm on Templated Impingement Free Range of Motion After Reverse Shoulder Arthroplasty. 16th International Congress on Shoulder and Elbow Surgery (ICSES) Meeting. Vancouver, CA. September 22-25, 2026.
  • Peluso R. Gregory JM. Revision for Instability Following Reverse Total Shoulder Arthroplasty: Development of an Algorithmic Approach to Revision Surgery. 16th International Congress on Shoulder and Elbow Surgery (ICSES) Meeting. Vancouver, CA. September 22-25, 2026.

Refereed Original Articles in Journals

  • Gregory JM, Arkader A, Bokhari A, Dormans JP. Case report: unicameral bone cysts in a young patient with acquired generalized lipodystrophy. Clin Orthop Relat Res. 2010 May;468(5):1440-6.
  • Ellman MB, Gregory JM, Bhatia S, Hsu A, Ghodadra N, Provencher MT, Romeo AA. An evidence-based review of the etiology, classification, diagnosis, and treatment of rotator cuff tears. Minerva Ortop Traumatol 2011; 62:89-108.
  • Gregory JM, Harwood DP, Sherman SL, Romeo AA. Surgical Repair of a Subacute Latissimus Dorsi Tendon Rupture. Techniques in Shoulder & Elbow Surgery. 2011 Dec;12(4):77-79.
  • Gregory JM, Harwood DP, Gochanour E, Sherman SL, Romeo AA. Clinical outcomes of revison biceps tenodesis. Int J Shoulder Surg. 2012 Apr;6(2):45-50.
  • Gregory JM, Sherman SL, Mather R, Bach BR. Patella Stress Fracture after Transosseous Extensor Mechanism Repair – _A Case Series. Am J Sports Med. 2012 Jul; 40(7): 1668-72.
  • Sherman SL, Mather R, Lin E, Gregory JM, Dishkin J, Harwood DP, Romeo AA, Verma N. Biomechanical Analysis of the Pectoralis Major and Comparison of Techniques for Tendo-osseous Repair. Am J Sports Med. 2012 Aug; 40(8): 1887-94.
  • Gregory JM, Hsu JE, Galatz LM. Periprosthetic Humeral Fractures in Shoulder Arthroplasty. Semin Arthro. 2014 March; 25: 59-63.
  • Hsu JE, Gregory JM, Galatz LM. Rotator Cuff Repair: Update on Biologic Strategies. Techniques in Shoulder & Elbow Surgery. 2014 Dec; 15(4):115-16.
  • Gregory JM, Klosterman E, Thomas JM, Hammond J, Shewman EF, Wang VM, Verma N, Romeo AA. Suture Technique Influences the Biomechanical Integrity of Pectoralis Major Repairs. Orthopedics. 2015 Sep 1; 38(9):e746-52.
  • Aleem AW, Gregory JM, Yamaguchi K, Galatz LM. Transverse Ulna Osteotomy for Revision Total Elbow Arthroplasty: Surgical Technique and Outcomes. Techniques in Shoulder & Elbow Surgery. 2016 June; 17(2):67-71.
  • Chalmers PN, Romeo AA, Nicholson GP, Boileau P, Keener JD, Gregory JM, Salazar DH, Tashjian RZ. Humeral Bone Loss in Revision Total Shoulder Arthroplasty: the Proximal Humeral Arthroplasty Revision Osseous inSufficiency (PHAROS) Classification System. Clin Orthop Relat Res. 2019 Feb; 477(2):432-441.
  • Gregory JM, Wetzig AM, Wayne CD, Bailey L, Warth RJ. Quantification of Patient-Level Costs in Outpatient Shoulder Arthroplasty. J Shoulder Elbow Surg. 2019 Jun;28(6):1066-1073.
  • Gregory JM, Wayne CD, Miller AJ, Kozemchak AM, Bailey L, Warth RJ. A Geographic Analysis of Total Shoulder Arthroplasty in the State of Texas. J Am Acad of Orthop Surg. 2020 Aug
  • Kerl CG, Chassay CM, Gregory JM. Arthroscopic-assisted Fixation of a Nonunited Coronoid Stress Fracture in a Competitive Gymnast. JBJS Case Connect. 2020 July-Sept;10(3).
  • Pancholi N, Gregory JM. Biologic Augmentation of Arthroscopic Rotator Cuff Repair Using Minced Subacromial Bursa. Arthrosc Tech. 2020 Oct; 9(10):e1519-e1524.
  • Mease SJ, Kraeutler MJ, Gonzales-Luna DC, Gregory JM, Gardner MJ, Choo AM. Current Controversies in the Treatment of Geriatric Proximal Humerus Fractures. J Bone Joint Surg Am. 2021 Feb 18.
  • Willenbring TJ, DeVos MJ, Kozemchak AM, Warth RJ, Gregory JM. Is Outpatient Shoulder Arthroplasty Safe in Patients Over 65 Years of Age? A Comparison of Readmissions and Complications in Inpatient and Outpatient Settings. J Shoulder Elbow Surg. 2021 Mar 19.
  • Willenbring TJ, DeVos MJ, Warth RJ, Gregory JM. Trends in Acromioplasty Utilization During Arthroscopic Rotator Cuff Repair: An Epidemiological Study of 139,586 Patients. J Am Acad of Orthop Surg Glob Res Rev. 2022 Apr 1.
  • Gosselin MM, Denney BS, Gregory JM. Treatment of Acromioclavicular Joint Instability with a Tunnel-Free Reconstruction Technique. Arthrosc Tech. 2022 May.
  • Wang G, Fiedler AK, Warth RJ, Bailey L, Shupe PG, Gregory JM. Reliability and Accuracy of Telemedicine-Based Shoulder Examinations. J Shoulder Elbow Surg. 2022 May 10.
  • Feinstein SD, Gregory JM. Arthroscopic Stabilization of Posterior Shoulder Instability Without Glenoid Bone Loss. Video Journal of Sports Medicine. 2022 Nov-Dec; 2(6).
  • Willenbring T, Epner E, Warth RJ, Gregory JM. Increasing rates of ulnar collateral ligament repair outpace reconstruction in isolated injuries: review of a Texas surgical database. JSES Int. 2023 Jan;7(1):192-197.
  • Gregory JM, Siahaan J, Urvoy M. Pre-operative Metaphyseal Cancellous Bone Density is Associated with Intra-operative Conversion to Stemmed Total Shoulder Arthroplasty. JSES Rev Rep Tech. 2023 Feb.
  • Tauberg B, Su J, Warth RJ, Gregory JM. Use of Intraoperative PRP During Rotator Cuff Repair is Correlated with Increased Patient-Level Charges Across Multiple Categories. J Shoulder Elbow Surg. 2023 Apr.
  • Gregory JM, Ybarra C, Liao Z, Kumaravel M, Patel S, Warth RJ. Clinical Outcomes of Rotator Cuff Repair with Subacromial Bursa Reimplantation: A Retrospective Cohort Study. JSES Int. 2023 June.
  • Olsen BA, Rollins JW, Ngo DH, Gregory JM. Tunnel-Free Acromioclavicular Joint Reconstruction is Associated with Improved Initial Reduction and Higher Patient Satisfaction. JSES Rev Rep Tech. 2023 Sept 4.
  • Klifto CS, Cheung EV, Holcomb JO, Frankle MA, Duralde XA, MacDonald PB, Ricchetti ET, Aibinder WR, Amini MH, Barnes LF, Byram IR, Chalmers PN, Chuinard CR, Friedman A, Gilotra M, Gregory JM, Grogan BF, Horneff JG, Kassam H, Kazanjian JE, Kilcoyne KG, Kowalsky MS, Li X, Liu JN, Muh SJ, Munoz J, Patterson B, Phipatanakul WP, Ward AM, Waterman BR, Woodmass JM, Wright M. Are Leaders Born to Lead, or Are They Made? J Shoulder Elbow Surg. 2023 Sep 28:S1058-2746(23)00698-5.
  • Zandiyeh P, Figueroa L, Lee EY, Gregory JM. Using Dynamic Stereo X-ray Imaging for In Vivo Acromioclavicular Joint Kinematics Assessment: A Preliminary Investigation. Orthop J Sports Med. 2024 Apr.
  • Feinstein S, Svetgoff RA, Harmon J, Siahaan J, Ngo D, Fullick RK, Flores SE, Shupe PG, Gregory BP, Gregory JM. The Effect of Preoperative Subacromial Epinephrine Injection on Visualization during Shoulder Arthroscopy: A Randomized Controlled Trial. Orthop J Sports Med. 2024 Mar.
  • Kim H, Leary E, Baker C, Barnes L, Creighton R, Cuomo F, DiPaola M, Foad A, Gregory JM, Grogan B, Kaar S, Kohan E, Krishnan S, Lo E, Moor J. Analyzing Practice Pattern in Treating Partial-Thickness Rotator Cuff Tears: A Dual Perspective from National Database and ASES PARCIAL Research Group. JSES International. 2024 Aug 26.
  • Chen K, Xing C, Gregory JM. Early Diagnosis and Revision Repair of Lesser Tuberosity Osteotomy Failure after Anatomic Total Shoulder Arthroplasty. Seminars in Arthroplasty: JSES. 2024 Sept.
  • Barnes L, Shi L, Walters T, Abrams G, ASES AC Joint Study Group. Acromioclavicular Joint Injuries: Multi-Center Expert Consensus Study using the Delphi Method. J Shoulder Elbow Surg. 2025 Jan.
  • Xing C, Lane MB, Feik ML, Taylor J, Gregory JM, Myers NL. Psychological Profiles of Patients Reporting with Musculoskeletal Shoulder or Elbow Pain. JSES Int. 2025 Apr.
  • Osadebey E, Pill S, Abrams G, Gregory JM. Acromioclavicular Separations: Complications and How to Avoid Them. J Am Acad Orthop Surg. 2025 July.
  • Konrath J, Wheaton S, Figueroa L, Gregory JM, Zandiyeh P. Preliminary In Vivo Evaluation of Coracoclavicular Ligament Mechanics during Shoulder Elevation Following Acromioclavicular Joint Reconstruction. Orthop J Sports Med. 2025 Nov.
  • Gregory JM, Smith AZ, Zandiyeh P. Impact of Subacromial Bursa Augmentation on Self-Reported and MRI Outcomes in Arthroscopic Rotator Cuff Repair: A Prospective, Blinded, Randomized Clinical Trial. Am J Sports Med. 2025 Dec.
  • Xing C, Myers NL, Gregory JM. Mixed Reality Guidance Improves Accuracy of Guide Pin Placement During Shoulder Arthroplasty. Seminars in Arthroplasty: JSES. 2026 Feb.
  • Lane M, Siahaan J, Gregory JM. Surgical Timing After Acromioclavicular Joint Separation: Association with Clinical Outcomes. Orthop J Sports Med. 2026 Mar.
  • Brewer MW, Copling SA, Roylance JS, Smith MR, Gehring Z, Guffey T, Kennedy SM, Conway JE, Gregory JM, Myers NL. Clinical Predictors of Baseline PROMIS Categorization in a Shoulder and Elbow Patient Population. Orthop J Sports Med. 2026 Mar.
  • Konrath J, Wheaton S, Figueroa L, Gregory JM, Zandiyeh P. In-vivo Assessment of the Subacromial Space During Shoulder Elevation Following Acromioclavicular Joint Reconstruction. Journal of Biomechanics. 2026 April 18.
  • Feik ML, Smith AZ, Chen KK, Gehring ZA, Myers NL, Gregory JM. The Reliability of the Forgotten Joint Score for Shoulder Arthroplasty. J Shoulder Elbow Arthroplasty. 2026 July.
  • Nembhard O, Pogoda J, Helm JM, Gregory JM, Waters J, Sambasivan A, Meeks E, Shupe P, Berkman E. Safety and Effectiveness of Placental Connective Tissue Matrix Allograft Versus Corticosteroid Injection in Adhesive Capsulitis: A Double-Blinded Prospective Randomized Study. JBJS Open Access. 2026 July.
  • Smith MD, Ahmadi SK, Gregory JM. Augmentation of Arthroscopic Rotator Cuff Repair Using Enthesis Interpositional Allograft and Minced Autologous Subacromial Bursa. Arthrosc Tech 2026 July.

Invited Articles

  • Gregory JM. Commentary on Canal Sparing Total Shoulder Arthroplasty. Orthopedics Today. May 21, 2019.
  • Gregory JM. Shoulder Dislocation. AAOS OrthoInfo. December 2023.
  • Gregory JM. Elbow Dislocation. AAOS OrthoInfo. December 2023.
  • Gregory JM. Shoulder Arthroscopy. AAOS OrthoInfo. December 2023.
  • Gregory JM. Periprosthetic Humeral Fractures. JBJS Clinical Summaries. December 2023.
  • Gregory JM. Infection in Total Shoulder Arthroplasty. JBJS Clinical Summaries. January 2024.

 

Book Chapters

  • Gregory JM, Ellman MB, Chalmers PN, Ghodadra NS, Romeo AA. Anterior Shoulder Instability – _Arthroscopic Repair in Disorders of the Shoulder: Sports Injuries, Lippincott Williams & Wilkins, 2013; 150-64.
  • Gregory JM, Nho S. Adhesive Capsulitis in Levine, B. (Ed.), Acing the Boards. Slack Inc., 2015
  • Gregory JM, Nho S. Total Shoulder Arthroplasty in Levine, B. (Ed.), Acing the Boards. Slack Inc., 2015
  • Gregory JM, Nho S. Rotator Cuff Repair in Levine, B. (Ed.), Acing the Boards. Slack Inc., 2015
  • Gregory BP, Gregory JM. Current Concepts in Tendinopathy and Acute Muscle Injury in Orthopedic Knowledge Update (OKU): Sports Medicine 6. American Academy of Orthopedic Surgeons (AAOS). 2020.
  • Kappa J, Gregory JM. Rotator Cuff Arthropathy: Basic Science, Mechanical, and Biologic Causes. AAOS Resident Curriculum. 2020
  • Tauberg B, Gregory JM. Rotator Cuff Disease: Basic Science of Tendon Tears, Repair, and Healing. AAOS Resident Curriculum. 2020
  • Gregory JM. Rotator Cuff Disease: Basic Science of Tendon Tears, Repair, and Healing. AAOS Resident Orthopaedic Curriculum Knowledge (ROCK). 2026