板的有限元分析,用于单边条件部骨折固定:一项计算研究
Agalyah Kalyan Kumar1, Pradeep Christopher1, Mohamed Afradh1
1Department of Oral and Maxillofacial Surgery, Dr. MGR Educational and Research Institute (Thai Moogambigai Dental College and Hospital), Chennai, India.
Journal of maxillofacial and oral surgery
|October 7, 2025
概括
兰巴达和阿尔法板块在高负荷下为状部骨折提供了卓越的固定. 对于这些具有挑战性的骨折,尤其是具有显著的功能需求的骨折,不建议使用形和形板.
科学领域:
- 口腔和牙面部外科手术
- 生物医学工程 生物医学工程
- 矯正牙科 矯正牙科是一種矯正牙科.
背景情况:
- 状部骨折由于复杂的生物力学和有限的解剖学访问,因此存在重大治疗挑战.
- 目前的骨质合成器件在有效稳定这些骨折方面表现出差异性.
- 需要对状部骨折的不同固定板设计进行比较分析.
研究的目的:
- 为了比较五种骨合成板 (Miniplate,Lambda,Trapezoidal,Rhomboidal,Alpha) 的生物机械性能,用于单侧状部骨折.
- 用有限元素分析 (FEA) 评估固定稳定性,应力分布和植入物变形.
- 在不同功能的负载下,确定最佳的状部骨折固定板设计.
主要方法:
- 从CT扫描数据创建了一个虚拟下模型,模拟了状部骨折.
- 五种不同的骨合成板设计实际上适应了断裂的部分.
- 用有限元分析 (FEA) 模拟了两个负载条件: 135N (手术后咬伤) 和 500N (紧力).
- 分析的关键参数包括螺丝应力,骨折线位移,骨应力,板应力和植入物刚性.
主要成果:
- 在135N负荷下,所有五个板块都提供了足够的固定,而形板块和形板块的螺丝松动风险较小.
- 在500N负载下,Lambda和Alpha板表现出卓越的性能,有效地分配骨压力并保持刚性.
- 与其他设计相比,Lambda和Alpha板块在更高的功能负载下显示出较低的植入失败率.
结论:
- 兰巴达和阿尔法板被推用于状部骨折固定,因为它们在增加的功能负载下具有卓越的性能.
- 状和状板不太适合状部骨折,特别是在预计有很大的力的情况下.
- FEA为复杂骨折管理提供了不同骨质合成装置的生物力学行为提供了宝贵的见解.
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