Movement of the distal carpal row during narrowing and widening of the carpal arch width.
Movement of the distal carpal row during narrowing and widening of the carpal arch width.
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腕弓宽度变窄和变宽期间远端腕骨行的运动。
DOI：
10.1115/1.4007634
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发表时间：
2012
期刊：
影响因子：
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通讯作者：
Li,Zong-Ming
中科院分区：
文献类型：
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作者：
Gabra,JosephN;Domalain,Mathieu;Li,Zong-Ming
腕弓宽度（CAW）的变化与腕关节运动、腕管松解或治疗性腕管手法相关。本研究调查了远端腕关节的角旋转作为CAW调整。在7具尸体标本中，CAW被缩小和加宽2和4 mm，同时通过基于标记的运动捕捉系统跟踪骨位置。CAW变窄时关节以旋前为主，变宽时关节以旋后为主。钩骨-头状骨（H-C）、头状骨-小多角骨（C-Td）和肱骨-髁（Td-Tm）关节绕旋前轴的运动范围分别为8.1 ± 2.3度、5.3 ± 1.3度和5.5 ± 3.5度。关节角旋转之间的差异在围绕旋前轴和尺偏轴的ΔCAW =-4 mm处发现。在旋前轴上，H-C关节的旋转角大于C-Td和Td-Tm关节。关节、旋转轴和ΔCAW因素之间的统计交互作用表明了复杂的关节运动模式。骨骼的复杂三维运动可以归因于几个解剖学约束，例如骨骼排列、韧带附着和关节一致性。这项研究的结果提供了深入了解腕管适应机制的结构组件的生物力学改变。
Change in carpal arch width (CAW) is associated with wrist movement, carpal tunnel release, or therapeutic tunnel manipulation. This study investigated the angular rotations of the distal carpal joints as the CAW was adjusted. The CAW was narrowed and widened by 2 and 4 mm in seven cadaveric specimens while the bone positions were tracked by a marker-based motion capture system. The joints mainly pronated during CAW narrowing and supinated during widening. Ranges of motion about the pronation axis for the hamate-capitate (H-C), capitate-trapezoid (C-Td), and trapezoid-trapezium (Td-Tm) joints were 8.1 ± 2.3 deg, 5.3 ± 1.3 deg, and 5.5 ± 3.5 deg, respectively. Differences between the angular rotations of the joints were found at ΔCAW = −4 mm about the pronation and ulnar-deviation axes. For the pronation axis, angular rotations of the H-C joint were larger than that of the C-Td and Td-Tm joints. Statistical interactions among the factors of joint, rotation axis, and ΔCAW indicated complex joint motion patterns. The complex three-dimensional motion of the bones can be attributed to several anatomical constraints such as bone arrangement, ligament attachments, and articular congruence. The results of this study provide insight into the mechanisms of carpal tunnel adaptations in response to biomechanical alterations of the structural components.