After shoulder dislocation, the shoulder joint needs to be reset first to solve the patient’s pain and inability to move the shoulder joint. If only emergency resetting is done without other treatment, there is a risk of increased shoulder injury, increased shoulder pain symptoms, increasing difficulty in later management, and worse treatment results. Because acute shoulder dislocation is often caused by violence, at this time the glenoid labrum tissue is avulsed from the articular glenoid, but at this time the glenoid labrum tissue is still well preserved or the tear is not large. After repeated shoulder dislocation, there can be an increasingly large scapular glenoid tear, degeneration of the glenoid labrum of the scapular glenoid, in severe cases the glenoid labrum disappears, extensive avulsion of the joint capsule, and damage to the long head tendon of the biceps muscle, i.e., SLAP injury in severe cases there is a bone defect in the articular glenoid, and the humeral head bone The defect is called Hill-Sachs injury. After the bone defect appears in the shoulder joint, it falls off when moving. The operation can be completed by fixing the glenoid labrum with rivets, but instead, bone surgery may be required to repair the defective glenoid, making the operation extremely complicated and damaging. In addition, articular cartilage wear can occur, and when traumatic arthritis occurs, the cartilage wear is irreversible and there is no good way to repair it. Severe traumatic arthritis may require shoulder joint replacement. In elderly people, the rotator cuff ages and degenerates like skin. After dislocation, the rotator cuff is often combined with rotator cuff tears, and if repeated dislocation makes rotator cuff tears gradually aggravate, resulting in difficulties in surgical suturing of the rotator cuff and poor surgical results, and in severe cases, the rotator cuff cannot be sutured and a reverse shoulder joint replacement is required.