目的采用多层螺旋CT(MSCT)技 术探究肩关节骨性结构与肩袖损伤的相 关性。方法 选择我院收治的50例单侧肩 袖损伤患者及100例正常成年人作为研究 对象，采用64排螺旋CT进行全部受试人 员肩关节扫描，测定并分析肩关节骨性 结构指标，分别比较正常组及患者组左 右两侧指标参数的差异及组间指标参数 的差异。结果 正常受试者各指标左右 侧比较均无显著性差异(P>0.05)；患者 组患侧肱骨头侧头结节仰角显著大于健 侧及正常组(P<0.05)；患者组患侧肩胛 盂向上倾斜角及扭转角显著大于健侧及 正常组(P<0.05)；患者组患侧头顶肩距 小于健侧及正常组(P<0.05)。结论 采用 MSCT进行肩关节骨性结构指标的测量操 作方法简单，可重复性强；肱骨头头结 节仰角、肩胛盂侧扭转角、倾斜角及头 顶肩峰距等骨性结构指标与肩袖损伤相 关。

Objective To investigate the correlation between shoulder bony structure and rotator cuff tears by using multi-slice spiral CT (MSCT) technique. Methods A total of 50 patients with unilateral rotator cuff tears and 100 normal adults were selected as study subjects. And 64-slice spiral CT was used to scan the shoulder joints of all the subjects. The indicators of shoulder bony structure were measured and analyzed. The left and right parameters were compared within and between groups. Results There were no significant differences between the right and left sides of the normal subjects (P>0.05). The elevation angle of the affected humeral head nodules in patients was significantly larger than that of the uninjured side and that in normal group (P<0.05). The upward inclination angle and torsion angle of affected scapular glenoid were significantly larger than those of the contralateral side and those in normal group (P<0.05). The distance from the top of the head to the shoulder of patients was shorter than that of the uninjured side and that of the normal group (P<0.05). Conclusion MSCT is simple and reproducible for measurement of shoulder bony structure. The elevation angle of humeral head nodules, torsion angle of scapular glenoid, inclination angle and the distance from the top of the head to the shoulder are related to rotator cuff tears.