Brinkhorst Michelle, Streekstra Geert, van Rosmalen Joost, Strackee Simon, Hovius Steven
Department of Plastic, Reconstructive and Hand Surgery, University Medical Center Rotterdam, Rotterdam, The Netherlands.
Department of Biomedical Engineering and Physics, Amsterdam UMC, University of Amsterdam, The Netherlands.
J Hand Surg Eur Vol. 2020 Nov;45(9):974-980. doi: 10.1177/1753193420943400. Epub 2020 Aug 3.
This in vivo study investigated the effect of axial load on lunate and scaphoid kinematics during flexion-extension and radial-ulnar deviation of the uninjured wrist using four-dimensional computed tomography. We found that applying axial load to the wrist results in a more flexed, radially deviated and pronated position of the lunate and scaphoid during flexion-extension of the wrist compared with when no load is applied. A larger pronation and supination range of the lunate and scaphoid was seen when the wrist was flexed and extended under axial load, whereas a larger flexion and extension range of the lunate and scaphoid occurred during radial-ulnar deviation of the wrist when axial load was applied.
这项体内研究使用四维计算机断层扫描，调查了在未受伤手腕屈伸和桡尺偏斜过程中轴向负荷对月骨和舟骨运动学的影响。我们发现，与不施加负荷时相比，对手腕施加轴向负荷会导致在手腕屈伸过程中月骨和舟骨处于更屈曲、桡偏和旋前的位置。当手腕在轴向负荷下屈伸时，月骨和舟骨的旋前和旋后范围更大，而当施加轴向负荷时，在手腕桡尺偏斜过程中月骨和舟骨的屈伸范围更大。
