Justin W. Arner, MD, Bryant P. Elrick, MSc, Philip-C. Nolte, MD, MA, Daniel B. Haber, MD, Marilee P. Horan, MPH, Peter J. Millett, MD, MSc
Few long-term outcome studies exist evaluating glenohumeral osteoarthritis (GHOA) treatment with arthroscopic management.
To determine outcomes, risk factors for failure, and survivorship for the comprehensive arthroscopic management (CAM) procedure for the treatment of GHOA at minimum 10-year follow-up.
Case series; Level of evidence, 3.
The CAM procedure was performed on a consecutive series of patients with advanced GHOA who opted for joint preservation surgery and otherwise met criteria for total shoulder arthroplasty. At minimum 10-year follow-up, postoperative outcome measures included change in the American Shoulder and Elbow Surgeons, Single Assessment Numeric Evaluation, 12-Item Short Form Health Survey (SF-12) Physical Component Summary, and visual analog scale for pain, along with the QuickDASH (shortened version of Disabilities of the Arm, Shoulder and Hand) and satisfaction score. Kaplan-Meier survivorship analysis was performed, with failure defined as progression to arthroplasty.
In total, 38 CAM procedures were performed with 10-year minimum follow-up (range, 10-14 years) with a mean patient age of 53 years (range, 27-68 years) at the time of surgery. Survivorship was 75.3% at 5 years and 63.2% at minimum 10 years. Those who progressed to arthroplasty did so at a mean 4.7 years (range, 0.8-9.6 years). For those who did not undergo arthroplasty, American Shoulder and Elbow Surgeons scores significantly improved postoperatively at 5 years (63.3 to 89.6; P < .001) and 10 years (63.3 to 80.6; P = .007). CAM failure was associated with severe preoperative humeral head incongruity in 93.8% of failures as compared with 50.0% of patients who did not go on to arthroplasty (P = .008). Median satisfaction was 7.5 out of 10.
Significant improvements in patient-reported outcomes were sustained at minimum 10-year follow-up in young patients with GHOA who underwent a CAM procedure. The survivorship rate at minimum 10-year follow-up was 63.2%. Humeral head flattening and severe joint incongruity were risk factors for CAM failure. The CAM procedure is an effective joint-preserving treatment for GHOA in appropriately selected patients, with sustained positive outcomes at 10 years.
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For access to the complete study: Survivorship and Patient-Reported Outcomes After Comprehensive Arthroscopic Management of Glenohumeral Osteoarthritis: Minimum 10-Year Follow-up