Reversed Shoulder Arthroplasty. Survival Rate at 10 Years

Introduction: the outcomes of arthroplasty are generally disappointing when a major compromise exists in the rotator cuff. In these cases, Grammont-type reverse shoulder arthroplasty (RSA) can be used and satisfactory outcomes have been reported. The goal of this study was to evaluate the outcomes of RSA after more than 10 years of follow up and to analyze the effects of preoperative etiology on those outcomes. Materials and Methods : it was a retrospective multicentric study about 145 RSA divided in 3 etilogies: group A -cuff tear arthropathy (CTA) and massive cuff tear (MCT), group B-revision of hemi or total shoulder arthroplasty, group C : miscellanous. Survival curves were established with the Kaplan-Meier technique. Clinical outcomes were assessed by Constant score and range of motion. Results: The survival curve to prosthetic removal showed an overall survivorship of 92% at 10 years and 84% at 15 years. At 10 years, segmentation according to etiology showed a 97% survivorship for group A and 88% for group B. Constant score and active anterior elevation have significantly improved. Active external rotation has not improved. The majority of complications take place during the first 3 years.Discussion and Conclusion: Survival rate at ten years is pretty good mainly for group A for which RSA should be reserved primarily.