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用外部合金锁板和传统的外部固定框架固定42A2型断裂的有限元分析比较

Shitao Fang¹, Ling Zhang², Yunqi Yang¹

¹Department of Orthopaedic Medicine Center, Brain Hospital of Hunan Provincial (The Second People's Hospital of Hunan Province), Clinical Medical College of Hunan University of Chinese Medicine, Changsha, 410007, China.

Journal of orthopaedic surgery and research

|November 1, 2023

概括

与外部固定支架相比,外部合金锁定板对于AO/OTA 42A2骨折提供了优越的生物机械性能. 这项研究证明了它们的增强稳定性和减少位移,支持临床使用.

科学领域:

骨科生物力学骨科生物力学
创伤外科手术中的有限元分析
生物材料和植入物设计

背景情况:

目前对使用外部固定支架的AO/OTA 42A2型公开骨折的治疗限制.
作为替代品,轻量级,易于操作的外部合金锁板的潜力.
缺少详细的生物力学分析,用于骨骨折中中间侧板和支架固定.

研究的目的:

为了比较外部合金锁板与AO/OTA 42A2骨折的外部固定支架的生物力学性能.
提供有限元分析数据,支持外部合金锁板的临床应用.

主要方法:

使用来自男性志愿者的CT数据构建AO/OTA 42A2骨折模型.
使用有限元分析软件在最大负载下模拟四点曲,轴向压缩和旋转测试.
在锁定板和固定支架技术之间比较应力分布,峰值应力和部位移.

主要成果:

这两种技术都显示了螺丝骨,螺丝板和针骨接口以及靠近骨折部位的应力度.
峰值应力 (26.67-558.77 MPa) 仍然低于合金的性强度.
与外部固定支架相比,外部合金锁定板显示出明显较小的峰位移和优越的结构稳定性.

结论:

外部合金锁板为AO/OTA 42A2断裂提供了出色的轴向压缩,曲和扭转阻力.
这些板材重量轻,易于处理,并且在生物机械上优于传统的外部固定支架.
这些发现支持使用外部合金锁板,以更好地满足治疗这些骨折的临床需求.

关键词:

生物力学生物力学外部固定支架支架外部固定支架外部合金锁定板的使用方法一个有限的元素.骨骨折骨骨折在骨中

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