拇外翻术后行“裹帘法”外固定对截骨端稳定性的影响

发布时间：2018-05-20 22:40

本文选题：拇外翻 + 生物力学　；参考：《中华中医药杂志》2017年05期

【摘要】：目的:分析"裹帘法"外固定方式对截骨端造成的应力环境,证实微创截骨手法整复术后行"裹帘法"外固定的可靠性。方法:在新鲜尸体标本上模拟微创第1跖骨截骨术,并行"裹帘法"外固定,在力学测试平台上测量截骨端相对位移变化情况、截骨端及趾蹼间应力数据。结果:"裹帘法"外固定下截骨端位移(0.27±0.03)mm,对截骨端愈合不会产生不利影响;"裹帘法"外固定下截骨端压力(21.03±1.93)N,趾蹼间受夹垫压力(4.89±0.42)N。结论:微创截骨手法整复术后截骨端存在微动,对截骨端愈合不会产生不利影响,截骨端愈合方式符合软骨内成骨。
[Abstract]:Objective: to analyze the stress environment at the end of osteotomy caused by the external fixation of "wrapped curtain method", and to confirm the reliability of the external fixation of "wrapped curtain method" after minimally invasive osteotomy. Methods: the first metatarsal osteotomy was simulated on the fresh cadavers. The relative displacement of the osteotomy end and the stress data between the osteotomy ends and the toe webbed were measured on the mechanical test platform. Results: the end displacement of osteotomy was 0.27 卤0.03mm under external fixation, and the end pressure of osteotomy was 21.03 卤1.93nnand the pressure between toe webbed was 4.89 卤0.42n. the end pressure of osteotomy was 21.03 卤1.93nnand the pressure between toe webbed was 4.89 卤0.42n. Conclusion: there is fretting at the end of the osteotomy after minimally invasive manual osteotomy, which will not have adverse effect on the healing of the osteotomy, and the healing mode of the osteotomy is in accordance with the osteogenesis in the cartilage.
【作者单位】：中国中医科学院望京医院;山西省大同市第二人民医院;中国中医科学院广安门医院南区;
【基金】：国家自然科学基金项目(No.81373802,No.81573800) 北京市自然科学基金项目(No.7162205)~~
【分类号】：R658

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