The mechanism of the carpal joint.
The mechanism of the carpal joint.
复制标题
腕关节的机制。
DOI：
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发表时间：
1986
影响因子：
4.2
通讯作者：
J. Kauer
中科院分区：
文献类型：
--
作者：
J. Kauer
腕骨的形态特征及其接触在腕关节的机制中起着非常重要的作用。腕骨近端在手屈曲和偏曲时的移位发生在相互连接的纵向关节链中。以下观察结果支持了这一概念：桡腕水平近端腕关节面曲率的差异表明腕中水平也发生了同步运动；近端腕骨的位置是由它们相对于远端腕骨和桡骨的位置决定的；腕骨近端向腕骨远端移位除了导致背掌旋转外，还导致横平面的转向运动（因此，掌侧屈曲的手的近端腕骨掌侧旋转的位置与桡侧偏的手不同，背侧屈曲的手的近端腕骨的位置与尺侧偏的手的位置不同）；三条关节链，桡骨、中央和尺骨，不能单独发挥作用，因为纵向的连接是通过关节链之间的相互接触和韧带的相互连接与横向连接联系在一起的。
The morphologic features of the carpal bones and their contacts play a highly significant role in the mechanism of the wrist joint. Displacements of the proximal carpal bones in both flexion and deviation of the hand take place in longitudinal articulation chains that are linked one to another. This concept is supported by the following observations: differences in curvature between the facets of the proximal carpals at the radiocarpal level suggest that simultaneous movements occur at the midcarpal level; the position of the proximal carpal bones is determined by their position with respect to both the distal carpal bones and the radius; displacements of the proximal carpal bones to the distal carpals result in swerving motions in the transverse plane in addition to dorsopalmar rotation (as a result, the volar rotated position of a proximal carpal in the volar flexed hand will differ from its position in the radial deviated hand and the positions of the proximal carpals in the dorsiflexed hand will differ from these in the ulnar deviated hand); and the three articulation chains, radial, central, and ulnar, cannot function on their own, since the linkage in the longitudinal direction is associated to a transverse linkage by the mutual joint contacts between the chains and by ligamentous interconnections.