Inclusion Criteria:  (1) The subject underwent Cuistow surgery, Bristow surgery, Latarjet surgery or Bankart surgery. (2) The surgeon was chief physician Cui Guoqing. (3) Pushlock anchor (2.9mm) or Gryphon anchor (3.0mm) was used during the operation, and the placement position was the glenoid.  Exclusion Criteria:  (1) Ipsilateral shoulder joint, with a history of surgery. (2) Subjects with postoperative infection. (3) Subjects with incomplete data (no immediate postoperative CT or no postoperative CT films for more than 2 years). (4)Subjects with diabetes. (5)Revision surgery for shoulder dislocation.