使用多尺度负载在椎脊椎中单个和多层次人造磁盘置换 (ADR) 的生物力学分析:有限元素研究
Ram Kumar1, Amit Kumar1, Shabanam Kumari2
1Department of Mechanical Engineering, National Institute of Technology, Patna, Bihar, India.
The International journal of artificial organs
|June 21, 2024
概括
人工磁盘置换 (ADR) 保护椎脊柱运动范围 (ROM) 并防止相邻段变性 (ASD). 生物机械分析证实了ADR.
科学领域:
- 生物力学 生物力学
- 脊柱外科手术 脊柱外科手术
- 生物材料是一种生物材料.
背景情况:
- 宫性退行性磁盘疾病需要保留脊柱功能的治疗.
- 人工磁盘置换 (ADR) 旨在保持运动范围 (ROM) 并防止相邻段变性 (ASD).
- 了解ADR植入物的生物力学性能对于临床成功至关重要.
研究的目的:
- 分析椎椎间盘人工替换 (ADR) 的生物力学.
- 为了评估运动范围 (ROM),应力和应变在单级和双级固定在生理负荷下.
- 评估Prodisc-Implant的耐用性和骨植入物接口性能.
主要方法:
- 单级和双级ADR模型的多尺度生物力学分析.
- 模拟部脊柱的生理运动和负荷.
- 测量运动范围 (ROM),骨/植入物应力和骨-植入物接口应变.
主要成果:
- 在生理负载期间,在单层和双层固定部位观察到ROM的增加.
- 与完整的椎脊柱模型相比,相邻水平的ROM降低.
- 在轴旋转过程中,Prodisc-Implant端板经历了432 MPa的最大Von Mises应力,表明了强大的性能.
结论:
- 人工磁盘替换 (ADR) 在操作的水平上有效地保持了运动范围 (ROM).
- 通过降低邻近水平的ROM,ADR可以减轻相邻段退化 (ASD).
- 在骨植入物接口上,Prodisc-Implant表现出极好的耐用性和生物力学稳定性.
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