解放军医药杂志Issue(11)：48-51,4.DOI:10.3969/j.issn.2095-140X.2014.11.012
桡骨远端不稳定性骨折两种固定方式的生物力学对比试验研究
Experimental Study on the Biomechanical Comparison between Two Fixation Methods in Treatment of Unstable Distal Radius Fractures
刘跃辉 1龙宁 1吴辉 1向勇 1李伟1
作者信息
- 1. 637000 四川 南充，南充市中心医院骨科
- 折叠
摘要
Abstract
Objective To observe the biomechanical stability of wrist buttress plate fixation and extra-articular arthrodesis combined with stand fixation in treatment of unstable distal radius fractures. Methods The models of AO C3 type of unstable distal radius fractures were prepared by using forearm samples without soft tissues from 10 cadavers, and were randomly divided into wrist buttress plate fixation group (group A, n=5) and wrist extra-articular arthrodesis com-bined with stand fixation group (group B, n=5). Group A was treated with wrist buttress plate fixation, while group B was treated with wrist extra-articular arthrodesis combined with stand fixation, and biomechanics tests of axial and bending pressure were performed in the two groups. The radial displacement of axial load and radial variation of bending load in the two groups were observed. Results In the axial compression test, axial compression strength in group A was signifi-cantly stronger than that in group B (P<0. 05, P<0. 01); in the three point bending test, little radial variation and good stability were found in group A compared with those in group B, and differences were statistically significant ( P<0. 01) . Conclusion The wrist buttress plate fixation in treatment of unstable distal radius fractures may achieve better anti-compressive and anti-flexural abilities than those by using extra-articular arthrodesis combined with stand fixation.关键词
桡骨远端骨折/外固定支架/支撑钢板/对比研究/生物力学Key words
Distal Radius fracture/External fixation stand/Buttress plate/Comparative study/Biomechanics分类
医药卫生引用本文复制引用
刘跃辉,龙宁,吴辉,向勇,李伟..桡骨远端不稳定性骨折两种固定方式的生物力学对比试验研究[J].解放军医药杂志,2014,(11):48-51,4.
