抄録
Preoperative stiffness has been one of the poor prognostic factors for rotator cuff repair. The purpose of this study was to evaluate the clinical outcome of arthroscopic rotator cuff repair (ARCR) associated with stiffness of the shoulder joint. 27 patients who underwent ARCR were evaluated at 6 months postoperatively. 11 patients who underwent preoperative manipulation or arthroscopic capsular release under general anesthesia were defined as stiffness group, and the others were considered non-stiffness group. The JOA score and range of motion were assessed. Total JOA score increased significantly in both stiffness group and non-stiffness group. The average total JOA score increased from 60.8 to 87.0 in stiffness group and from 70.6 to 89.6 in non-stiffness group. The average of flexion in stiffness group was 143.6° at 6 months postoperatively, and that in non-stiffness group was 160.3°. There was no significant difference between the 2 groups at 6 months postoperatively. The range of flexion was also increased in both groups, however the stiffness group includes few poor resulting patients. The clinical results of ARCR were satisfactory even if there was preoperative stiffness of the shoulder.