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相关概念视频

Ankle Joint01:10

Ankle Joint

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The ankle is formed by the talocrural joint (crural = leg). It consists of the articulations between the talus bone of the foot and the distal ends of the tibia and fibula of the leg. The superior aspect of the talus bone is square-shaped and has three areas of articulation. The top of the talus articulates with the inferior tibia. This is the portion of the ankle joint that carries the body weight between the leg and foot. The sides of the talus are firmly held in position by the articulations...
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相关实验视频

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Method and Instrumented Fixture for Femoral Fracture Testing in a Sideways Fall-on-the-Hip Position
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骨折 - - 一个使用有限元分析的病理学研究.

Mongkol Kaewbumrung1, Chayanin Angthong2, Prasit Rajbhandari3

  • 1Faculty of Engineering and Architecture, Rajamangala University of Technology Suvarnabhumi, Phra Nakhon Si Ayutthaya, Thailand.

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骨的部最容易受到轴向力造成的骨折,特别是在15度的角度. 这种有限元分析强调了高风险活动中安全措施的重要性.

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科学领域:

  • 生物力学 生物力学
  • 整形外科的研究研究.
  • 有限元素分析 (FEA)

背景情况:

  • 骨对于人体的负载转移至关重要.
  • 骨折会带来复杂的治疗挑战和潜在的并发症.
  • 了解 talar 生物力学对于预防伤害至关重要.

研究的目的:

  • 通过使用现实世界的数据来模拟骨.
  • 分析生物力学对造成骨折的力量的反应.
  • 为了确定关键区域和引力角度导致塔拉骨折.

主要方法:

  • 创建了一个Talus的3D有限元素分析 (FEA) 模型.
  • 弹性模量值的分配是基于之前的研究.
  • 模拟涉及不同的力方向 (正和负) 和角度 (0°,15°,30°,45°).

主要成果:

  • 塔拉尔部表现出最大的总变形,这表明裂开始的风险很高.
  • 在正面方向增加的力增加了口腔骨折的可能性.
  • 在15°的力角下观察到最大等效应力 (von Mises应力),特别是在后上向前下方向.

结论:

  • 在轴向力模拟下,塔拉尔是最容易发生骨折的区域.
  • 一个15度的力方向显著增加骨折的风险.
  • 建议在涉及轴向力损伤的活动中实施安全措施.