随着骨缩短的单边骨骨折后的负荷分布:研究有限元模型的研究
Loreine M L Helmer1,2, Cornelis Klop3, Frank Lobbezoo4
1Department of Oral and Maxillofacial Surgery, Amsterdam Academic Medical Centers and Academic Centre for Dentistry (ACTA), University of Amsterdam and Vrije Universiteit Amsterdam, Amsterdam, The Netherlands. l.m.l.helmer@acta.nl.
Head & face medicine
|July 8, 2023
概括
冠状骨折可以缩短大腿骨,改变关节 (TMJ) 的负荷. 显著缩短超过6mm可能会阻碍身体.
科学领域:
- 生物力学 生物力学
- 矯正牙科 矯正牙科是一種矯正牙科.
- 口腔和牙面部外科手术
背景情况:
- 状骨折通常会导致骨缩短.
- 这种缩短会导致牙缺陷,并改变关节 (TMJ) 的负荷.
- 关节重塑可能发生,以补偿系统失衡.
研究的目的:
- 为了调查骨缩短对关节骨折后TMJ负荷分布的影响.
- 为了量化压裂和非压裂的负载变化.
- 为了确定拉姆斯缩短的门,挑战身体的补偿机制.
主要方法:
- 开发了系统的有限元模型 (FEM).
- 模拟引发了不同程度的右骨骨折,骨缩短 (2-16毫米).
- 在模拟条件下分析了TMJ内的负荷分布.
主要成果:
- 拉姆斯缩短的增加导致破裂的负载减少,对侧的负载增加.
- 在6毫米和8毫米的缩短之间,在破裂的骨中观察到显著的负载减轻 (切断点).
- 这些发现表明,对骨折诱导的不对称性有生物力学反应.
结论:
- 由于关节缩短而导致的关节负荷变化与状骨重塑有关.
- 缩短超过6毫米可能代表一个关键值,表明生理补偿更大的困难.
- 这些发现对了解骨折后TMJ适应和治疗计划有影响.
相关概念视频
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