组织工程与重建外科杂志

组织工程与重建外科杂志 ›› 2014, Vol. 10 ›› Issue (1): 30-33.doi: 10.3969/j.issn.1673-0364.2014.01.009

• 论著 • 上一篇    下一篇

下颌骨牵张成骨的有限元模拟

陈莹，归来，牛峰，李彪，王亲猛   

  1. 北京市中国医学科学院整形外科医院；北京市北京工业大学机械工程与应用电子技术学院
  • 发布日期:2020-07-23

Biomechanical Evaluation of Mandibular Distraction Osteogenesis by a Finite Element Model

CHEN Ying,GUI Lai,NIU Feng,LI Biao,WANG Qinmeng   

  1. Plastic Surgery Hospital,Chinese Academy of Medical Sciences & Peking Union Medical College;College of Mechanical Engineering and Applied Electronics Technology,Beijing Industrial University
  • Published:2020-07-23

摘要： 目的建立下颌骨牵张成骨的有限元模型,以了解下颌骨牵张成骨形变发生的生物力学基础和形变规律。方法将下颌骨CT数据导入Mimics 10.1,按临床设计的截骨线位置进行模拟截骨,然后将数据输入Magics 9.9中进行模型优化。输入Ansys 12.0建模,并进行下颌骨牵张成骨的模拟。结果牵张成骨的位移变化、应力及软组织改变均可直观有效地模拟。结论有限元分析可以总结手术效果,分析应力分布及软组织阻力方向,提出治疗过程的改进意见。

关键词: 下颌骨, 牵张成骨, 有限元

Abstract: Objective To establish a finite element model of mandibular distraction and to evaluate its biomechanics and deformation. Methods The geometry model was established by Mimics software via reading the data of DICOM format from CT. Bone cutting simulation was performed by Mimics and model optimization was operated by Magics software. The finite element model was established and mandibular distraction simulation was analyzed by Ansys software. Results The dis-placement of mandible, the stress and the soft tissue change were all calculated. Conclusion The finite element analysis can evaluate the operative effect, analyze the stress distribution and the direction of soft tissue resistance, which could guide the preoperative design and improve the clinical outcome.

Key words: Mandible, Distraction osteogenesis, Finite element

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