Dähnert W, Bernd W
Z Orthop Ihre Grenzgeb. 1986 Jan-Feb;124(1):46-9. doi: 10.1055/s-2008-1044522.
A simple and easy method of CT-measurement of humeral torsion is proposed. This requires a transverse section of the proximal and distal epiphyses. The optimal site of cross-sectioning with reliable construction of the joint axis was determined in ten humeral bones. The variability of the angle was 2 to 3 degrees. Comparing CT-measurements in 50 humeri with anthropometry showed excellent correlation. Varation in humeral torsion on either side was approx. 50 degrees with the same mean value in right and left humeri of our specimens. Deviations in bone positioning within the gantry of up to 15 degrees in two different planes had little effect on the measurements. Habitual dislocation of the shoulder as well as assessment of postfractural malrotation of the humerus might be indications for measurement of humeral torsion.
本文提出了一种简单易行的肱骨扭转CT测量方法。这需要对近端和远端骨骺进行横断面扫描。通过对10具肱骨骨骼进行研究，确定了具有可靠关节轴构建的最佳横截面位置。角度的变异性为2至3度。将50例肱骨的CT测量结果与人体测量学结果进行比较，显示出极好的相关性。我们标本的左右肱骨扭转差异约为50度，平均值相同。在两个不同平面内，机架内骨骼定位偏差高达15度对测量结果影响很小。习惯性肩关节脱位以及肱骨骨折后旋转不良的评估可能是测量肱骨扭转的指征。
