The three-dimensional rotational behaviors of the carpal bones.
The three-dimensional rotational behaviors of the carpal bones.
复制标题
腕骨的三维旋转行为。
DOI：
10.1097/00003086-198207000-00047
复制
发表时间：
1982
影响因子：
4.2
通讯作者：
A. Flatt
中科院分区：
文献类型：
--
作者：
R. Berger;R. Crowninshield;A. Flatt
十具新鲜尸体前臂腕骨的旋转行为进行了测定，使用三维声波数字化仪，作为手被动移动通过平面约束运动。将前臂方向从旋后改变为旋前导致近端和远端腕排骨的伸展幅度增加，以及远端腕排骨的屈曲幅度减少。每个腕骨螺钉位移轴（SDA）和第三掌骨SDA之间的夹角为相应的运动间隔显着大于零，无论前臂方向。在第三掌骨桡尺偏位时，腕近侧排骨的夹角明显大于腕远侧排骨的夹角。腕骨旋转幅度相对于第三掌骨的规定旋转幅度显著衰减，除了第三掌骨伸展期间的梯形。旋转衰减在近端腕骨排中最大，并且在第三掌骨屈伸运动和尺骨偏斜期间最明显。这项调查的证据有利于腕关节运动的腕骨行概念，而不是腕骨列模型。
The rotational behaviors of the carpal bones of ten fresh cadaver forearms were determined using a three-dimensional sonic digitizer, as the hands were passively moved through planar constrained motions. Changing forearm orientation from supination to pronation results in an increase in the magnitudes of extension of the proximal and distal carpal row bones and a reduction in the magnitudes of flexion of the distal carpal row bones. The included angles between each carpal bone screw displacement axis (SDA) and third metacarpal SDA for corresponding intervals of motion are significantly greater than zero, regardless of forearm orientation. The included angles of the proximal carpal row bones are significantly greater than those of the distal carpal row bones during third metacarpal radial-ulnar deviation. The carpal bone rotation magnitudes are significantly attenuated relative to the prescribed rotation magnitudes of the third metacarpal, with the exception of the trapezoid during third metacarpal extension. The rotational attenuation is greatest in the proximal carpal row bones and is most pronounced during third metacarpal flexion-extension motion and ulnar deviation. Evidence from this investigation favors a carpal row concept of wrist motion, as opposed to a carpal column model.