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A finite element method for the simulation of levator ani muscle stress under different conditions
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- Author:
- No author available
- Issue:
- 26
- DOI:
- 10.3969/j.issn.1673-8225.2012.26.020
- Key Word:
- 盆底;有限元;肛提肌;盆底功能障碍性疾病;生物力学
Abstract： 背景:构建盆底软组织的有限元模型对其进行有限元分析从而阐述其生物力学发生机制,在盆底肌肉及骨盆的生物力学方面有着独特的优势.目的:建立肛提肌有限元模型,分析多种工况下肛提肌的应力分布,为从力学角度认识女性盆底功能障碍性疾病提供参考.方法:基于MRI影像资料用MIMICS三维重建软件重构肛提肌几何结构,用有限元分析方法仿真计算肛提肌的应力分布.结果与结论:各工况下肛提肌中最大应力出现位置接近,休息状态肛提肌主动收缩压力为零时最小,剧烈张力且肛提肌主动收缩压力最大时肛提肌内的最大应力也最高.说明不同状态下肛提肌的高腹压会对肛提肌产生较大的应力,容易造成肛提肌的组织损伤.
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