Michaud B, Jackson M, Arndt A, Lundberg A, Begon M
Laboratoire de Simulation et Modélisation du Mouvement, Campus de Laval CP 6128, Succursale Centre-ville Montréal, QC, Canada, H3C 3J7; ScapuloHumeral Investigation Team, SE-171 77, Stockholm, Sweden.
Swedish School of Sport and Health Sciences, GIH, Box 5626, SE-114 86 Stockholm, Sweden; Karolinska Institutet, SE-171 77, Stockholm, Sweden; ScapuloHumeral Investigation Team, SE-171 77, Stockholm, Sweden.
Med Eng Phys. 2016 Mar;38(3):290-6. doi: 10.1016/j.medengphy.2015.12.004. Epub 2016 Jan 7.
To describe shoulder motion the sternoclavicular, acromioclavicular and glenohumeral joint centres must be accurately located. Within the literature various methods to estimate joint centres of rotation location are proposed, with no agreement of the method best suited to the shoulder. The objective of this study was to determine the most reliable non-invasive method for locating joint centre locations of the shoulder complex. Functional methods using pin mounted markers were compared to anatomical methods, functional methods using skin mounted markers, imaging-based methods using CT-scan data, and regression equations. Three participants took part in the study, that involved insertion of intracortical pins into the clavicle, scapula and humerus, a CT-scan of the shoulder, and finally data collection using a motion analysis system. The various methods to estimate joint centre location did not all agree, however suggestions about the most reliable non-invasive methods could be made. For the sternoclavicular joint, the authors suggest the anatomical method using the most ventral landmark on the sternoclavicular joint, as recommended by the International Society of Biomechanics. For the acromioclavicular joint, the authors suggest the anatomical method using the landmark defined as the most dorsal point on the acromioclavicular joint, as proposed by van der Helm. For the glenohumeral joint, the simple regression equation of Rab is recommended.
为了描述肩部运动，必须准确确定胸锁关节、肩锁关节和盂肱关节的中心位置。文献中提出了各种估计关节旋转中心位置的方法，但对于最适合肩部的方法尚无定论。本研究的目的是确定定位肩部复合体关节中心位置最可靠的非侵入性方法。将使用针固定标记的功能方法与解剖方法、使用皮肤固定标记的功能方法、使用CT扫描数据的基于成像的方法以及回归方程进行比较。三名参与者参与了该研究，研究包括将皮质内针插入锁骨、肩胛骨和肱骨，对肩部进行CT扫描，最后使用运动分析系统收集数据。估计关节中心位置的各种方法并不完全一致，不过可以就最可靠的非侵入性方法提出建议。对于胸锁关节，作者建议采用国际生物力学学会推荐的使用胸锁关节最腹侧标志的解剖方法。对于肩锁关节，作者建议采用范德·赫尔姆提出的使用定义为肩锁关节最背侧点的标志的解剖方法。对于盂肱关节，推荐使用Rab的简单回归方程。
