Grasshoff H, Buhtz C, Gellerich I, von Knorre C
Klinik für Orthopädie, Medizinische Akademie Magdeburg.
Rofo. 1991 Dec;155(6):523-6. doi: 10.1055/s-2008-1033310.
CT is able to demonstrate the predisposing factors for recurrent and posttraumatic subluxation of the shoulder. In addition to demonstrating bony changes in the glenoid (Bankart lesion) and in the humeral head (Hill-Sachs lesion), CT can measure the degree of retroversion of the glenoid and torsion of the humerus. Measurements on 17 shoulders with habitual and 24 shoulders with recurrent posttraumatic subluxation showed low values for glenoid retroversion as compared with a control group. Particularly patients with habitual anterior subluxation frequently showed anteversion of the glenoid. Measurements of humeral torsion showed wide scatter amongst all groups, indicating wide biological variability. The results were compared with those published in the literature and the indications and limitations of CT for the investigation of shoulder instability are discussed.
CT能够显示肩关节复发性和创伤后半脱位的诱发因素。除了显示肩胛盂（Bankart损伤）和肱骨头（Hill-Sachs损伤）的骨质改变外，CT还可以测量肩胛盂的后倾程度和肱骨的扭转情况。对17例习惯性肩关节半脱位和24例创伤后复发性肩关节半脱位患者的测量结果显示，与对照组相比，肩胛盂后倾值较低。特别是习惯性前脱位患者，肩胛盂常表现为前倾。肱骨扭转测量结果在所有组中差异较大，表明存在较大的生物学变异性。将结果与文献报道进行比较，并讨论了CT在肩关节不稳检查中的适应证和局限性。
