Role of Subscapularis Tendon Repair in Reverse Total Shoulder Arthroplasty.

In anatomic total shoulder arthroplasty (TSA), subscapularis repair is essential for shoulder stability and function postoperatively; however, the role of subscapularis repair in reverse TSA remains unclear. Some evidence suggests that subscapularis repair is associated with improved postoperative stability and range of motion, whereas other evidence indicates that repair is unnecessary and has no effect on clinical outcomes. In this review, we will analyze the existing literature addressing subscapularis repair during reverse TSA and discuss the effect of medialized and lateralized prosthesis designs on the utility of tendon repair.