Johnson G R, Stuart P R, Mitchell S
Centre for Rehabilitation and Engineering Studies (CREST), University of Newcastle upon Tyne, UK.
Clin Biomech (Bristol). 1993 Sep;8(5):269-73. doi: 10.1016/0268-0033(93)90037-I.
Many disorders of the shoulder complex are accompanied by changes in the pattern of scapular motion which is difficult to measure except radiographically. In order to study the three-dimensional motion of the scapula which accompanies arm movements, a technique has been developed using a three-pointed locater which can be applied over three bony landmarks - the acromial angle, the inferior angle, and the root of the scapular spine. The spatial orientation of the locater relative to the trunk was measured using an electromagnetic movement sensor (isotrak) which has been shown to be clinically reliable. Measurements of scapular plane rotations during abduction showed particularly good agreement with published data; variations in measurements of the out-of-plane angles were attributed to difficulties of contacting the acromion reliably when the deltoid muscle was contracted. It is concluded that the system is suitable for clinical use in the study of shoulder pathology.
肩部复合体的许多病症都伴有肩胛运动模式的改变，这种改变很难通过影像学以外的方法进行测量。为了研究手臂运动时肩胛骨的三维运动，已开发出一种技术，使用一个三点定位器，该定位器可应用于三个骨性标志——肩峰角、下角和肩胛冈根部。使用已被证明在临床上可靠的电磁运动传感器（isotrak）测量定位器相对于躯干的空间方向。外展过程中肩胛骨平面旋转的测量结果与已发表的数据特别吻合；平面外角度测量的差异归因于三角肌收缩时可靠接触肩峰的困难。得出的结论是，该系统适用于肩部病理学研究的临床应用。
