Three-dimensional finite element simulation and biomechanical analysis of maxillofacial blast injuries and secondary injuries to the skull base

Xuhua ZHOU; Xunzhi ZHU; Rongjian OUYANG; Yong ZENG; Gang ZHANG; Yinghui TAN

doi:10.16016/j.1000-5404.201810154

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Three-dimensional finite element simulation and biomechanical analysis of maxillofacial blast injuries and secondary injuries to the skull base

Basic Medicine | 更新时间：2026-01-09

- Three-dimensional finite element simulation and biomechanical analysis of maxillofacial blast injuries and secondary injuries to the skull base
- Journal of Third Military Medical University Vol. 41, Issue 4, Pages: 308-314(2019)
- 作者机构：
  
  1.400030 重庆，陆军军医大学(第三军医大学)第二附属医院口腔科
  2.663600 云南文山，中国人民解放军31640部队
- 作者简介：
- 基金信息：
  
  the Key Project of the Twelfth Five-Year Plan of PLA(BGZ1500J001)
- DOI：10.16016/j.1000-5404.201810154
  CLC： R319;R642;R782.4
- Received：25 October 2018，
  
  Revised：2018-11-14，
  
  Published：28 February 2019
- 稿件说明：
移动端阅览
Xuhua ZHOU, Xunzhi ZHU, Rongjian OUYANG, et al. Three-dimensional finite element simulation and biomechanical analysis of maxillofacial blast injuries and secondary injuries to the skull base[J]. Journal of Third Military Medical University, 2019, 41(4): 308-314.
DOI：

Xuhua ZHOU, Xunzhi ZHU, Rongjian OUYANG, et al. Three-dimensional finite element simulation and biomechanical analysis of maxillofacial blast injuries and secondary injuries to the skull base[J]. Journal of Third Military Medical University, 2019, 41(4): 308-314. DOI： 10.16016/j.1000-5404.201810154.

摘要

目的

利用有限元法(finite element method

FEM)构建人颌面部三维有限元模型，仿真模拟颌面部不同部位爆炸伤，对颅底部继发性损伤进行生物力学分析。

方法

采集一成年男性头部CT数据，用有限元建模软件建立人颌面骨三维有限元模型；在爆炸当量、距离相同条件下，对颌面部不同部位爆炸伤进行动态仿真模拟；在颅底部选取15个标志点进行生物力学分析。

结果

成功模拟出颌面部3个部位受到相同条件冲击波作用时，颌面骨骨折的动态过程、颅底部应力分布及传导情况；爆炸物距鼻尖前方5 cm时，卵圆孔内侧、垂体窝、斜坡等Von Mises应力较大；爆炸物距右眼眶下缘正前方5 cm时，卵圆孔内侧、垂体窝、斜坡等Von Mises应力较大；爆炸物距右侧颧弓正前方5 cm时，右侧蝶骨大翼、右侧卵圆孔内侧、斜坡等Von Mises应力较大。

结论

利用FEM可以有效地模拟颌面部爆炸伤的致伤过程，颌面部不同部位受到爆炸冲击波时，应力集中区出现的部位不仅与颅底结构有关，也与应力传导途径有关。

Abstract

Objective

To construct a three-dimensional finite element model of human maxillofacial structures to dynamically simulate blast injuries in different maxillofacial regions and analyze the biomechanical characteristics of skull base injuries caused by maxillofacial blast injuries.

Methods

The head CT data were acquired from a normal male adult and a three-dimensional finite element model of the maxillofacial bones was constructed using finite element modeling software. Using the same parameters of blast yield and distance

we dynamically simulated blast injuries in different maxillofacial regions on this model and analyzed the biomechanical data at 15 selected landmarks in the skull base.

Results

We successfully simulated the dynamic process of maxillofacial fractures and stress distribution and conduction in the skull base using the constructed model. In the events of an explosion at precisely 5 cm from the front of the nasal bone tip and one at 5 cm from the front of the edge of the right orbit

the stress values of Von Mises at the medial foramen ovale

hypophyseal fossa

clivus and posterior wall of the foramen magnum were greater than those at the other landmarks; when the explosion occurred at 5 cm from the front of the right zygomatic arch

the right greater wing of the sphenoid bone

right medial foramen ovale

hypophyseal fossa

clivus and posterior wall of the foramen magnum sustained greater stress values of Von Mises.

Conclusion

Finite element modeling is capable of simulating the process of maxillofacial blast injuries. Blast wave impact in different maxillofacial regions results in stress concentration in different areas in relation not only to the structure of skull base but also to the stress conduction pathway.

关键词

Keywords

references

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