Posterior Rotator Cuff–sparing Total Shoulder Arthroplasty: Three Cases

The traditional total shoulder arthroplasty approach uses a subscapularis takedown through tenotomy, peel, or lesser tuberosity osteotomy. Recently, a subscapularis split, rotator interval, and sub-subscapularis approach have been developed to spare the rotator cuff and provide improved functional outcomes for patients. Rotator cuff–sparing total shoulder arthroplasty may improve postoperative pain, rehabilitation, and subscapularis function and strength. Here, the first three patients treated with a rotator cuff–sparing posterior approach that uses the interval between the teres minor and infraspinatus and an in situ osteotomy are described.