烏口肩峰靱帯を温存した前肩峰形成術の治療成績

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The purpose of this study was to clarify the clinical results of coracoacromial ligament (CAL) preserving anterior acromioplasty for rotator cuff tear. Thirty-two patients (thirty-three shoulders) underwent a rotator cuff repair between April 1997 and March 1999. CAL preserving anterior acromioplasty was performed on twenty-five shoulders (18 males and 6 females), with a mean age of 60.4 years old. They were followed for an average of 32 months postoperatively. All the patients completed a short form-36 (SF-36) health status questionnaire and Hospital for Special Surgery (HSS) scoring system questionnaire pre- and postoperatively. The average preoperative HSS score was 26 points. Postoperatively, the HSS scores improved significantly to an average of 86 points. The postoperative clinical evaluations of these patients were ; 13 excellent, 10 good, and 2 poor. The average preoperative physical component summary score of the SF-36 was 29.5 and the mean mental component score was 40. The average postoperative physical and mental component scores increased significantly to 72.2 and 78.3 points. The Hawkins sign was positive in two patients postoperatively. Patients with rotator cuff tears have been treated with traditional anterior acromioplasty. Recently biomechanical studies have indicated that the CAL contributes to glenohumeral stability. This study indicates that the retained CAL after beveling of the inferior acromion does not always jeopardize the shoulder joint.

烏口肩峰靱帯を温存した前肩峰形成術の治療成績

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