在使用有限元分析锁定板固定后,狗半径的压力变化
Norihiro Muroi1,2, Sawako Murakami1, Nobuo Kanno1
1Department of Veterinary Surgery, Nippon Veterinary and Life Science University, Musashino-shi, Tokyo, Japan.
概括
锁定板 (LP) 在狗半径中放置可以减少皮层骨的张力压力. 这项有限元分析 (FEA) 研究表明,LP的放置可能会影响植入物下方的骨重塑.
科学领域:
- 兽医整形医学 兽医整形医学
- 生物机械工程 生物机械工程
- 有限元分析 有限元分析
背景情况:
- 锁定板 (LP) 在骨折修复中使用.
- 了解植入物下压力分布对于骨愈合和植入物长寿至关重要.
- 有限元分析 (FEA) 提供了一种模拟生物力学压力的方法.
研究的目的:
- 为了使用FEA评估锁定板 (LP) 下的狗半径的应力变化.
- 为了比较应力分布与不同的LP放置相对于辐射表面.
主要方法:
- 通过计算机断层扫描 (CT) 来扫描八只狗的收获辐射.
- 使用FEA软件分析了Radii的三组:没有板,LP 1mm以上,LP 3mm以上的表面.
- 在板下测量了等效,最大和最小的主应力和最小的主应力.
主要成果:
- 在外元素中,与完整组相比,LP放置显著降低了最大主应力.
- 在固体元素中,LP放置增加了同等应力,但与完整组相比,最大主应力降低了.
- 在LP放置时,观察到板子下面的应力减少.
结论:
- LP安置可以减少半径皮层骨上的张力压力.
- 观察到的压力变化可能与植入物诱导的骨质疏松症和骨形成有关.
- FEA是分析骨科植入物的生物力学影响的宝贵工具.
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