组织工程与重建外科杂志2013，Vol.9Issue(1)：10-13,4.DOI:10.3969/j.issn.1673-0364.2013.01.003
三维有限元法对单纯颧骨骨折坚强内固定的生物力学研究
Biomechanics of Rigid Internal Fixation in Simple Displaced Fracture of Zygoma by using 3D FEM Simulation
摘要
Abstract
Objective To analyse the stress distribution of simple displaced fracture of zygoma under different rigid internal fixation(RIF) methods by three-dimensional finite element method(3D FEM), so as to provide theoretical basis for the clinical choice of optimal fixation of zygomatic fractures. Methods Using spiral CT scan and related software to develop a 3 -D FEM of zygomatic fracture fixation and using the MSC.Marc software to analyze the model. Results Stress concentration was distributed in the middle of titanium plate when fixing one point of zygomatic ridge. However, when fixing three points (zygomatic ridge, zygomatic-forehead suture and infraorbital margin) of titanium plate, the stress was mainly distributed in the infra orbital rim and zygomatic alveolar crest. The former fracture has a maximum relative displacement of 0.121 mm which is higher than the latter. At the same time, when using the absorbable plate to fix zygomatic ridge at one point, the maximum stress was distributed in the middle of the edge titanium plate and the maximum relative displacement of the fracture is 0.0926 mm. Conclusion Three points fixation is superior to the one point zygomatic ridge, but the latter was the most simple and reliable fixation method in the fixation of zygomatic fractures. Zygomatic ridge one point absorbable plate fixation can obtain the same effect of one point type titanium plate fixation.关键词
颧骨骨折/三维有限元/坚固内固定/可吸收材料Key words
Fracture of zygoma/ Three-dimensional finite element method/ Rigid internal fixation/ Absorbable material分类
医药卫生引用本文复制引用
陈虹瑜,代燕,曲竹丽,赵华强..三维有限元法对单纯颧骨骨折坚强内固定的生物力学研究[J].组织工程与重建外科杂志,2013,9(1):10-13,4.
