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基于PE-PLIF融合的联合和聚乙的结构设计和生物力学分析

Lei Ma¹, Yutang Xie¹, Kai Zhang²

¹Taiyuan University of Technology School of Biomedical Engineering, Taiyuan, China.

Medical & biological engineering & computing

|October 28, 2024

概括

一个用于腰椎脊柱融合的新型组合,与类子相比,减少了应力屏蔽. 这种新设计增强了融合稳定性,并为未来的临床应用提供了理论指导.

科学领域:

生物医学工程生物医学工程
整形外科手术整形外科手术
材料科学材料科学材料科学

背景情况:

腰部聚变中的金子会导致应力屏蔽,可能导致相邻段变性.
聚乙基 (PEEK) 子缺乏最佳的骨生长和融合稳定性的特性.

研究的目的:

设计和生物机械分析一种用于皮肤内镜后腰部体融合 (PE-PLIF) 的新组合.
用有限元素分析来比较,PEEK和新型组合的性能.

主要方法:

开发一个完整的L4-L5腰椎有限元素 (FE) 模型.
静态和波振动FE分析以评估生物力学性能.
在不同的子材料中比较应力,应变和移动性.

主要成果:

联合子显示,与相比,应变能力增加了9.5%.
与相比,L5端板应力降低了12% (屈曲) 和融合应力降低了17% (振动) 的联合子.
在模型之间没有观察到螺丝应力或移动性的显著差异.

结论:

结合的子有效地减少了应力屏蔽效应,与类子相比.
新设计显示了改进的融合效应,为临床融合开发提供了基础.

关键词:

联合子设计组合有限元素方法有限元素方法.在PE-PLIF投资组合中,简单的和振动简单的和振动.压力屏蔽压力屏蔽

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