本文選題：腕關(guān)節(jié)　切入點(diǎn)：生物力學(xué)　出處：《北京大學(xué)學(xué)報(bào)(醫(yī)學(xué)版)》2017年03期 　論文類型：期刊論文

【摘要】：目的:明確掌、背側(cè)深層橈尺韌帶對(duì)橈尺遠(yuǎn)側(cè)關(guān)節(jié)的穩(wěn)定作用。方法:將14具新鮮冰凍上肢標(biāo)本隨機(jī)分為2組,解剖顯露橈尺遠(yuǎn)側(cè)韌帶,分別標(biāo)記掌、背側(cè)深層韌帶,解剖游離出旋前圓肌及旋后肌,在橈骨Lister結(jié)節(jié)處垂直骨面置一枚克氏針,前臂中立位時(shí)在尺骨遠(yuǎn)端同一水平位置平行置一枚克氏針作為標(biāo)記點(diǎn),用自制的夾具將標(biāo)本固定于生物力學(xué)儀器上,使肘關(guān)節(jié)屈曲90°,固定尺骨,使橈骨可圍繞尺骨自由旋轉(zhuǎn)。于旋前圓肌加載50 N的力模擬前臂主動(dòng)旋前,于旋后肌加載60 N的力模擬主動(dòng)旋后,分別切斷掌、背側(cè)深層橈尺韌帶,測(cè)量橈骨相對(duì)于尺骨的位移。結(jié)果:切斷掌側(cè)深層韌帶后,前臂旋前時(shí)橈骨相對(duì)于尺骨的位移明顯改變(t=5.591,P=0.001),旋后時(shí)無(wú)明顯改變(t=0.433,P=0.680)。切斷背側(cè)深層韌帶后,前臂旋前時(shí)橈骨相對(duì)于尺骨的位移無(wú)明顯改變(t=1.000,P=0.356),旋后時(shí)明顯改變(t=-6.225,P=0.001)。結(jié)論:單獨(dú)切斷掌側(cè)深層橈尺韌帶會(huì)造成橈尺遠(yuǎn)側(cè)關(guān)節(jié)旋前時(shí)不穩(wěn)定,單獨(dú)切斷背側(cè)深層橈尺韌帶會(huì)造成橈尺遠(yuǎn)側(cè)關(guān)節(jié)旋后時(shí)不穩(wěn)定。
[Abstract]:Objective: to determine the stabilizing effect of deep radial ulnar ligament on distal radioulnar joint. Methods: fourteen fresh frozen upper limb specimens were randomly divided into two groups, the distal radial ulnar ligament was dissected and the palmar and deep dorsal ligaments were labeled respectively. A Kirschner's needle was placed on the vertical surface of the radial Lister's tubercle, and a Kirschner's needle was placed in the neutral position of the forearm at the same horizontal position of the distal ulna. The specimen was fixed on a biomechanical instrument with a self-made fixture. The elbow joint was buckled by 90 擄, the ulna was fixed, and the radius was rotated freely around the ulna. The displacement of radius relative to ulna was measured by transecting palmar and deep radial ulnar ligament respectively after 60 N load of supination muscle. Results: after cutting deep metacarpal ligament, The displacement of the radius relative to the ulna was significantly changed during the forearm pronation, and no significant change was observed during the rotation. After the deep dorsal ligament was cut off, the deep dorsal ligament was cut off. The displacement of the radius to the ulna during forearm pronation has no obvious change, and the displacement of the radius to the ulna is not significantly changed during pronation. Conclusion: cutting off the deep radial ulnar ligament alone may cause instability in the pronation of the distal radioulnar joint. Transection of the deep radial ulnar ligament alone may cause instability in the pronation of the distal radioulnar joint.
【作者單位】： 北京積水潭醫(yī)院手外科;
【分類號(hào)】：R318.01
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本文編號(hào)：1590308