Shoulder instability arises when the glenoid labrum or capsulolabral complex is torn or stretched or if a patient has excessive hypermobility of the shoulder joint.  A stretched capsulolabral complex increases the risk of a shoulder instability and or dislocation.  A capsular shift surgery is utilized to tighten the joint capsule and restore stability to the shoulder in patients with recurrent instability after a prior stabilization surgery (labral repair) or hypermobility of the shoulder joint.  The procedure is performed arthroscopically or via an open approach.  Using an arthroscopic approach, small incisions are made around the shoulder joint, a camera and specialized tools are inserted into the joint to tighten and repair the injured joint capsule.  The excess tissue of the capsule is folded underneath itself and sutured together to tighten the capsule. The suture is fixed in bone used a special suture anchor.  The suture fixation tightens the capsule tissue and restores stability to the shoulder joint.  Using the open approach, a larger incision is made in the front of the shoulder, the deltoid and pectoralis muscles are moved aside, and the joint capsule is exposed beneath the subscapularis tendon (the front rotator cuff muscle). The capsule is then tightened and secured in place using the same anchors used via and arthroscopic approach. Patients are required to wear a sling after surgery for 6-8 weeks, and rehabilitation to regain motion, strength, and normal function begins immediately. Higher-level strengthening typically begins at three months, provided full motion is achieved without pain, and contact athletics may begin between 4-6 months.