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。
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.
出处
《组织工程与重建外科杂志》
2014年第1期30-33,共4页
Journal of Tissue Engineering and Reconstructive Surgery
关键词
下颌骨
牵张成骨
有限元
Mandible
Distraction osteogenesis
Finite element
