Mechanical study of pelvic fracture based on finite element model

WEI Guo-qiang; CHE Li-fang; NIU Xiao-fen; ZHANG Kai; WANG Yi; SHI Guopeng; BAI Ling; WANG Hai-yan; LI Xiao-he; XU Yang-yang

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Mechanical study of pelvic fracture based on finite element model

更新时间：2022-06-24

- Mechanical study of pelvic fracture based on finite element model
- null Issue 10, Pages: 841(2021)
- 作者机构：
  
  1. 长治市人民医院康复医学科,山西,长治,046000
  2. 乌兰察布市第二医院骨科,内蒙古,乌兰察布,012000
  3. 内蒙古医科大学基础医学院解剖教研室,内蒙古,呼和浩特,010110
  4. 内蒙古医科大学数字医学中心,内蒙古,呼和浩特,010110
- 作者简介：
- 基金信息：
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WEI Guo-qiang, CHE Li-fang, NIU Xiao-fen, et al. Mechanical study of pelvic fracture based on finite element model. [J]. null (10):841(2021)
DOI：

WEI Guo-qiang, CHE Li-fang, NIU Xiao-fen, et al. Mechanical study of pelvic fracture based on finite element model. [J]. null (10):841(2021) DOI：

摘要

目的探讨骨盆骨折保守治疗后不同姿势下骨盆应力分布情况，以提供有关骨盆力学特征的新见解。方法利用患者螺旋CT影像资料进行三维重建，建立骨盆有限元模型，在L5上终板施加400 N的力，固定坐骨结节，模拟患者骨盆中立位、前倾位、后倾位不同姿势，观察骨盆应力分布情况。结果骨盆前倾20°位在位置1（耻骨上支与右侧髂骨的骨折断面）、位置3（坐骨支的骨折断面）、位置4（耻骨下支的骨折断面）均明显增大，说明在此体位下对骨盆骨折断端影响最大，其次是骨盆后倾10°位与后倾20°位。应力大小次序：前倾20°位（5.25 MPa）＞后倾20°位（3.63 MPa）＞后倾10°位（3.38 MPa）＞前倾10°位（2.18 MPa）＞中立位（2.15 MPa）。〖HTH〗结论 通过建立有限元模型，对骨折位置进行应力分析，得出不同坐位姿势下力学变化趋势，可为康复训练的动作选择提供临床参考。

Abstract

关键词

骨盆骨折生物力学有限元分析应力

Keywords

pelvic fracturebiomechanicsfinite element analysisstres

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