EFFECT OF TRIANGULAR LIGAMENT TEARS ON DISTAL RADIOULNAR JOINT INSTABILITY AND EVALUATION OF THREE CLINICAL TESTS: A BIOMECHANICAL STUDY
EFFECT OF TRIANGULAR LIGAMENT TEARS ON DISTAL RADIOULNAR JOINT INSTABILITY AND EVALUATION OF THREE CLINICAL TESTS: A BIOMECHANICAL STUDY
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DOI：
10.1177/1753193408098482
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发表时间：
2009-04-01
影响因子：
1.8
通讯作者：
Yamashita, T.
中科院分区：
文献类型：
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作者：
Moriya, T.;Aoki, M.;Yamashita, T.
采用11具新鲜/冷冻身体标本，通过运动分析测量腕关节被动运动时远端放射尺关节(DRUJ)的不稳定性，并进行3项临床试验(尺腕应力试验、钢琴琴键试验和DRUJ拉铃试验)。从掌侧入路松解三角韧带以模拟DRUJ的不稳定。在不同程度的前臂旋转下测量桡骨远端相对于尺骨头部的位移。腕关节被动运动时，尺凹和尺骨茎突底部周围的三角韧带松动导致不同程度的DRUJ不稳定。在三角韧带完全松解后，只有DRUJ包扎试验在评估远端尺放射骨关节不稳定方面有统计学意义的准确性。
Using 11 fresh/frozen cadaver specimens, instability of the distal radioulnar joint (DRUJ) during passive wrist motion was measured by motion analysis and three clinical tests (ulno-carpal stress test, piano-key test, and DRUJ ballottement test) were performed. Release of the triangular ligament from the palmar approach was performed to simulate instability of the DRUJ. Displacement of the distal radius against the ulnar head was measured at various degrees of forearm rotation. Release of the triangular ligament at the ulnar fovea and around the base of the ulnar styloid process caused various degrees of DRUJ instability during passive wrist motion. After complete triangular ligament release, only the DRUJ ballottement test demonstrated a statistically significant degree of accuracy in the evaluation of distal radioulnar joint instability.