Seltzer S E, Weissman B N
J Can Assoc Radiol. 1985 Mar;36(1):41-6.
Computed tomographic (CT) scans of the shoulders of 10 normal individuals and six patients with a history of recent or recurrent shoulder dislocation were reviewed. In normal individuals, the surface of the glenoid was smooth and was always within 10 degrees of being perpendicular to the body of the scapula. As scans progressed from cephalad to caudad, the glenoid surface twisted and faced more anteriorly. The center of the humeral head always projected within the central one-third of the glenoid fossa. In the patients with dislocations, CT scans depicted a variety of lesions, including: bony abnormalities of the glenoid surface (fragmentation, fracture, irregularity) in three patients; abnormal glenoid-scapular angles in two; loose bodies in two; subtle subluxation, coracoid fracture, cystic humeral defect, and soft-tissue calcification in one patient each. Scans without intra-articular contrast could not demonstrate capsular or labral abnormalities. CT images are helpful in the pre- and postoperative assessment of some patients with shoulder dislocation.
回顾了10名正常个体和6名有近期或复发性肩关节脱位病史患者的肩部计算机断层扫描（CT）图像。在正常个体中，肩胛盂表面光滑，且始终与肩胛骨体垂直角度在10度以内。随着扫描从头部向尾部推进，肩胛盂表面扭转并更向前方。肱骨头中心始终投影在肩胛盂窝中央三分之一范围内。在脱位患者中，CT扫描显示了多种病变，包括：3例患者肩胛盂表面的骨质异常（碎裂、骨折、不规则）；2例患者肩胛盂与肩胛骨角度异常；2例患者有游离体；1例患者分别有轻微半脱位、喙突骨折、肱骨囊性缺损和软组织钙化。无关节内造影剂的扫描无法显示关节囊或盂唇异常。CT图像有助于一些肩关节脱位患者的术前和术后评估。
