Cassagnaud X, Maynou C, Petroff E, Dujardin C, Mestdagh H
Service d'Orthopédie A, Hôpital R. Salengro, CHRU de Lille, 59037 Lille cedex, France.
Surg Radiol Anat. 2003 May;25(2):145-51. doi: 10.1007/s00276-003-0101-6. Epub 2003 Apr 11.
An original method of CT measurement of the lateralization of the humeral intertubercular groove is described based on geometric construction following Thales theorem. A study of intra- and interobserver reproducibility was done of this measurement and humeral retroversion on 32 healthy volunteers. The results show good reproducibility of these measurements. The average value of humeral retroversion was lower than the average values found in the literature: 11.71 degrees on average on the dominant side and 7.03 degrees on average on the non-dominant side with a large spread of values. The reasons for these differences are discussed. The average values of lateralization of the intertubercular groove were 114.97 degrees on the dominant side and 121.9 degrees on the non-dominant side. These CT measurements are important to consider in the pathophysiology of chronic anterior instability of the shoulder.
描述了一种基于泰勒斯定理进行几何构建的肱骨结节间沟侧化的CT测量原始方法。对32名健康志愿者进行了该测量及肱骨后倾角的观察者内和观察者间重复性研究。结果显示这些测量具有良好的重复性。肱骨后倾角的平均值低于文献中报道的平均值：优势侧平均为11.71度，非优势侧平均为7.03度，且数值分布范围较大。讨论了这些差异的原因。结节间沟侧化的平均值在优势侧为114.97度，在非优势侧为121.9度。在肩部慢性前向不稳定的病理生理学中，这些CT测量结果具有重要的参考价值。
