Haraguchi Ⅱ型后踝骨折两种内固定方式的生物力学研究

发布时间：2018-05-08 07:57

本文选题：后踝骨折 + 内固定　；参考：《中国矫形外科杂志》2017年12期

【摘要】：[目的]研究Haraguchi Ⅱ型后踝骨折两种内固定方式的生物力学特征,寻找最佳内固定方法,为临床应用提供基础理论依据。[方法]通过20具踝关节人工骨制作Haraguchi Ⅱ型后踝骨折模型,分别采用后踝空心钉+内踝空心钉(A组10具)和后踝重建钢板固定+内踝空心钉(B组10具)固定,进行生物力学实验应力分析。比较各组内固定方式的优劣性。[结果]应力强度、刚度、抗扭转力学性能、接触力学等一系列生物力学性能显示:B组与A组呈显著性差异(P0.05),B组明显优于A组,而B组强刚度和应力水平均接近于正常组。[结论]Haraguchi Ⅱ型后踝骨折采用后踝重建钢板具有优越的生物力学性能,比后踝空心钉内固定方式更好,是一种比较理想的术式,对临床具有指导意义。
[Abstract]:[Objective] to study the biomechanical characteristics of two internal fixation methods for Haraguchi type II posterior malleolus fracture, find the best internal fixation method and provide basic theoretical basis for clinical application. [method] Haraguchi II posterior ankle fracture model was made by 20 ankle joint artificial bones. The posterior malleolus nnail + inner malleolus hollow nail (group A 10) and posterior malleolus weight were used respectively. Steel plate fixation + internal malleolus hollow nail (group B 10) fixed, biomechanical experimental stress analysis. Compare the advantages and disadvantages of the internal fixation methods in each group. [results] a series of biomechanical properties such as stress intensity, stiffness, torsion resistance and contact mechanics showed significant difference between group B and A group (P0.05), B group was obviously better than group A, and strong stiffness of B group. And the stress level is close to the normal group. [conclusion]Haraguchi II posterior ankle fracture plate with posterior ankle reconstruction plate has superior biomechanical properties and is better than posterior malleolus hollow nail fixation. It is an ideal operative method and is of guiding significance to clinical practice.

【作者单位】：泰山医学院;上海市第六人民医院金山分院;
【基金】：上海市科学技术委员会科研计划项目课题(编号:14411972600) 上海市卫生和计划生育委员会研究课题(编号:2013-319)
【分类号】：R318.01;R683

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