对各种刚性内部固定方式的生物力学评估,用于状关联多重下骨折:有限元分析
Jie Li1,2, Chong-Tao Xu2, Ying Li1
1School of Dentistry, Stomatological Hospital, Tianjin Medical University, No. 12, Qixiangtai Road, Heping District, Tianjin, 300070, China.
Medical & biological engineering & computing
|May 2, 2024
概括
多重下骨折涉及骨底部是很常见的. 这项研究比较了使用有限元分析的固定方法,发现特定的板位 (I+II或I+III) 为复杂骨折提供最佳稳定性.
科学领域:
- 口腔和牙面部外科手术
- 生物机械工程 生物机械工程
- 创伤外科 手术 创伤外科
背景情况:
- 多重下骨折,特别是涉及骨底部的骨折,越来越普遍.
- 对下的直接创伤可能导致间接的骨骨折.
- 对于复杂的底骨折,最优的刚性内固定策略尚不清楚,这影响了手术方法的选择.
研究的目的:
- 为了评估多次下骨骨折的状骨底部不同刚性内部固定 (RIF) 板位的生物力学稳定性.
- 使用有限元素分析 (FEA) 在各种RIF模式下比较应力和位移.
主要方法:
- 用有限元素分析 (FEA) 来模拟在状骨基中的RIF.
- 分析了三个植入位置:后侧区域 (I),前侧区域 (II) 和中间区域 (III).
- 在固定装置和骨中的·米塞斯应力 (SS),以及下位移 (DT),被计算和比较.
主要成果:
- 对于状底和共骨折,I+II模式显示了螺丝/骨头的最小应力和最小的位移.
- 对于状底部和对侧体骨折,I+III模式最大限度地减少了螺丝/骨应力,而I+II则最大限度地减少了板张力和位移.
- 对于状底和对侧角度骨折,I+III模式显示出最少的位移.
结论:
- 无论是I+II还是I+III的固定方式,都能有效地固化状骨基骨折的内部固化,并与交合体,对侧体或角度骨折相结合.
- 在I+II和I+III模式之间的选择可能取决于特定的骨折模式,以优化生物力学结果.
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