目的 探讨肩关节镜下手术治疗肩峰下撞击综合征（subacromial impingement syndrome, SIS）的临床疗效观察。方法 对60例SIS患者进行肩关节镜下手术治疗。采用UCLA评分、ASES评分、Constant-Murley评分和VAS评分来评估患者肩关节功能和疼痛情况。结果 对60例患者进行了6~24个月的随访。除1例合并大型肩袖撕裂者二期行阔筋膜游离补片修补术,疼痛缓解及关节功能恢复欠佳外,其余所有患者术后患肢疼痛均得到缓解,关节功能得到基本的恢复。最后一次随访时,肩关节功能评分和疼痛评分均显著优于术前（P<0.01）。结论 肩关节镜下手术治疗SIS可以达到满意的治疗效果,术中需对合并症进行一并治疗,以保障临床效果。

Objective To explore the clinical effect of shoulder arthroscopy on subacromial impingement syndrome （SIS）. Methods A total of 60 patients with SIS were treated with shoulder arthroscopy. UCLA score, ASES score, Constant-Murley score, and VAS score were used to evaluate shoulder function and pain. Results The 60 patients were followed up for 6 to 24 months. Except 1 patient with large rotator cuff tear who underwent repair of fascia lata free patch and suffered poor pain relief and recovery of joint function, the remaining patients were relieved from postoperative pain of the affected limbs and basically returned to normal joint function. At the last follow-up, the scores of shoulder function and pain were significantly better than those before operation （P<0.01）. Conclusion Shoulder arthroscopic surgery for SIS can achieve satisfactory results. Complications should be treated during the operation to ensure the clinical effect.