Methods 23 cases o f aiguillette collision injury were treated by improved foreacromioplasty (resea rch group),while another 23 patients were operated on by traditional methods(co ntrol group).

• 方法本组23例肩部撞击症患者为研究组,全部采用改良前肩峰成形术。另23例为对照组,采用传统手术方法。