Hernigou P, Duparc F, Filali C
Hôpital Henri Mondor, Créteil, France.
Rev Chir Orthop Reparatrice Appar Mot. 1995;81(5):419-27.
From a theoretical point of view, humeral torsion is described as the angle between the transcondylar plane and the posteromedially facing joint surface of the humeral head. In this study, humeral torsion was also identified as the angle between the anatomical neck of the humerus and at the inferior part the axis of rotation of the elbow and the axis of the forearm.
60 cadaveric humeral shafts were obtained. The axis were defined and measured by CT Scans.
The orientation of the cartilage of the humeral head was determined as a line perpendicular to the limits of the joint area of the humeral head. The axis of the humeral anatomical neck was defined as the plane that contains both the long axis of the humerus and the center of the humeral head. The rotation axis of the elbow was defined as the line passing through the centers of the capitellum and the trochlear sulcus.
The angle between the orientation of the humeral head and the orientation of the transcondylar line averaged 23 degrees. The angle between the humeral neck and the orientation of the transcondylar line averaged 38 degrees. The angle between the humeral neck and a line perpendicular to the axis of the forearm averaged 41 degrees.
It is important to analyse humeral head retroversion by taking into account the axis system and the anatomical planes in shoulder arthroplasty.
从理论角度来看，肱骨扭转被描述为髁间平面与肱骨头后内侧关节面之间的夹角。在本研究中，肱骨扭转也被确定为肱骨解剖颈与肘部旋转轴和前臂轴下部之间的夹角。
获取了60具尸体的肱骨干。通过CT扫描定义并测量轴线。
肱骨头软骨的方向被确定为一条垂直于肱骨头关节区域边界的线。肱骨干解剖颈的轴线被定义为包含肱骨长轴和肱骨头中心的平面。肘部的旋转轴被定义为穿过肱骨小头和滑车沟中心的线。
肱骨头方向与髁间线方向之间的夹角平均为23度。肱骨干与髁间线方向之间的夹角平均为38度。肱骨干与垂直于前臂轴的线之间的夹角平均为41度。
在肩关节置换术中，考虑轴系统和解剖平面来分析肱骨头后倾很重要。
