The Difficulty of Treating Glenohumeral Arthritis after Instability Surgery

    Hemiarthroplasty and total shoulder arthroplasty (TSA) provide improved function and pain control in patients who develop glenohumeral arthritis following instability surgery, but the improvements may only be temporary, according to a study from Mayo Clinic, Rochester, Minnesota, presented at the recent annual meeting of the Mid-America Orthopaedic Association.

    The study followed 63 patients who underwent treatment for glenohumeral arthritis after instability surgery between January 1,1976, and December 31, 2003. Patients were followed for a mean of 12 years (range, 5 to 33 years). The study authors found:

    • High revision rates – 43% for hemiarthroplasty and 34% for TSA, with all revisions in the hemiarthroplasty group for progressive glenoid arthritis and most revision in the TSA group (10 of 15) for painful glenoid wear with instability
    • Unsatisfactory outcomes related to component failure, instability, and pain: 11 excellent, 16 satisfactory, and 34 unsatisfactory
    • Compromised implant survivorship: 73% at 10 years and 49% at 20 years, with no difference between hemiarthroplasty and TSA

    Lead author Peter L. Kok, MD, sat down with ICJR to discuss the results of the study. Click the image above to hear his comments.

    Producer and Director: Michael Bugera; Post Production: Charles Maynard


    Kok PL, Parry JA, Schoch BS, Schleck CD, Cofield RH, Sperling JW. Shoulder Arthroplasty for Arthritis after Instability Surgery: A 10-Year Follow-Up Study (Paper 153). Presented at the Mid-America Orthopaedic Association Annual Meeting, April 22-25, 2015, Hilton Head Island, South Carolina.