重庆医学Issue(29)：4070-4072,4076,4.DOI:10.3969/j.issn.1671-8348.2015.29.014
颅颈交界区畸形寰枢外侧关节生物力学稳定性的有限元分析
Biomechanical of lateral atlantoaxial articulation in craniocervical junction malformation:afinite element analysis
摘要
Abstract
Objective To analyze the biomechanical changes of lateral atlantoaxial articulation by means of three‐dimensional fnite element models of craniocervical junction malformation(CJVM) .Methods CT scan images of 1 patients with CJVM were ob‐tained .The analytical model was constructed by advanced three‐dimension modeling and finite element softwares .A comparison of range of motion difference between the deformity model and normal model ,referring to the experience of clinical observation ,was used to verify the validity of the model .Applying respectively the same loads and boundary conditions on finite element model .The effectiveness was verified by contrastive analysis of the variation in lateral atlantoaxial joint stresses .Results The finite CJVM ele‐ment model with high geometric accuracyand reliable parameter had built .Compared to the results of cadaver test and finite element model based in normal cranio‐cervical junction ,the segment mobility coincides with the actual clinical performance in patients .The stress distribution the lateral junction between atlas and axis of can be reasonably explained the deformation of lateral atlanto‐axial joint structure and its important role in remaining stable between atlantoaxial vertebraeunder different physiological conditions .Con‐clusion The structure of lateral atlantoaxial joint changes in patients of CJVM ,the biomechanical stability for preoperative diagno‐sis and intraoperative treatment operation has a certain value .关键词
颅颈交界区畸形/关节/生物力学/有限元分析Key words
craniocervical junction malformation/joints/biomechanics/finite element analysis分类
医药卫生引用本文复制引用
杨明浩,高文雷,金乾坤,陆声..颅颈交界区畸形寰枢外侧关节生物力学稳定性的有限元分析[J].重庆医学,2015,(29):4070-4072,4076,4.基金项目
国家自然科学基金资助项目（81171428）。 （）
