3-DIMENSIONAL KINEMATICS OF GLENOHUMERAL ELEVATION
3-DIMENSIONAL KINEMATICS OF GLENOHUMERAL ELEVATION
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DOI：
10.1002/jor.1100090117
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发表时间：
1991-01-01
影响因子：
2.8
通讯作者：
MORREY, BF
中科院分区：
文献类型：
--
作者：
AN, KN;BROWNE, AO;MORREY, BF
为了帮助解决长期存在的不确定性的运动学的肩膀，我们研究了三维盂肱关节运动在手臂抬高。 使用磁跟踪系统监测肱骨相对于肩胛骨的三维方向。 然后根据定义的欧拉角进行适当的坐标转换，以计算盂肱关节旋转。 记录了抬高平面和肱骨旋转对臂抬高幅度的影响。 盂肱关节处的最大肱骨提升发生在肩胛平面前方的平面内。 肩胛平面前所有平面的最大提升需要肱骨外旋。 相反，内轴向旋转是必要的，以最大限度地提高后肩胛平面。 量化强制性轴向旋转解释了内外旋转与最大海拔的关系。
To help resolve longstanding uncertainties about kinematics of the shoulder, we studied three-dimensional glenohumeral joint motion during arm elevation. A magnetic tracking system was used to monitor the three-dimensional orientation of the humerus with respect to the scapula. Appropriate coordinate transformations were then performed for the calculation of glenohumeral joint rotation based on the defined Eulerian angle. The effects of the plane of elevation and the humeral rotation on the magnitude of arm elevation were documented. The maximum humeral elevation at the glenohumeral joint took place in a plane anterior to the scapular plane. Maximum elevation in all planes anterior to the scapular plane required external axial rotation of the humerus. Conversely, internal axial rotation was necessary for maximum elevation posterior to the scapular plane. Quantifying the obligatory axial rotation explains the relationship of internal and external rotation with maximum elevation.