Immobilization group: 6 weeks of sling shoulder immobilization. Immediate range of motion of the elbow, forearm, wrist and hand. At 6 weeks, PROM and stretching of the shoulder allowed under therapist direction. At 12 weeks, AAROM and AROM exercises will be initiated and capsular stretching advanced until full ROM achieved. Strengthening activities of the rotator cuff, deltoid and scapular stabilizers will be permitted at 4 months post surgery.