Reverse Shoulder Arthroplasty Indications, Technique, and Results

The surgical treatment of glenohumeral arthritis with ro-tator cuff deficiency is a difficult challenge. Hemiarthro-plasty, the standard treatment at this time, is associated with satisfactory results in a ‘‘limited goals’ ’ perspective, but often the clinical results are unpredictable. Elevation after hemiarthroplasty approximately 90. Pain relief can be inconsistent and can deteriorate over time. Constrained prostheses, including ball and socket and reverse ball and socket designs, were introduced in the 1970s to improve upon the results of arthroplasty in this challenging population. Unfortunately, clinical results were inconsistent using these designs, and rates of mechanical loosening and revision were high. The only design that survived has been the prosthesis of Pau