Outcomes of anatomic shoulder arthroplasty in primary osteoarthritis in type B glenoids.

摘要: Background Primary glenohumeral osteoarthritis with posterior wear of the glenoid and subluxation humerus (Walch type B) presents a challenge to treating surgeon. Our hypothesis was that glenoids biconcavity (B2) would be associated worse outcomes (functional scores complications) than B1 glenoids. Materials methods We retrospectively analyzed prospectively collected data on 112 anatomic total shoulder arthroplasties (104 patients) B Preoperative computed tomography identified 64 48 B2 (50 37 available for follow-up). Results A significant difference between noted in average retroversion (11° vs. 16°; P  Conclusions Although biconcave commonly have more severe humerus, we were unable find clinical or radiographic outcome patients treated arthroplasty at intermediate-term follow-up. Continued follow-up these cohorts will necessary assess any future divergence outcome.