| 青年颈椎生理曲度变直全节段有限元建模与分析 |
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| 引用本文： | 魏威,廖胜辉,赖震.青年颈椎生理曲度变直全节段有限元建模与分析[J].上海生物医学工程,2011(2):68-73. |
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| 作者姓名： | 魏威 廖胜辉 赖震 |
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| 作者单位： | 杭州市红十字会医院骨科;浙江大学计算机科学与技术学院; |
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| 基金项目： | 浙江省中管局立项项目(2009CB063); 国家自然科学基金(60903136) |
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| 摘 要： | 目的建立青年颈椎生理曲度变直和正常的全节段有限元模型,进行对比与分析。方法采集青年颈椎曲度变直志愿者CT数据,利用生物力学有限元软件构建高质量颈椎全节段模型,然后采用基于离散微分属性的体网格变形技术,将变直模型映射生成曲度正常模型,在相同边界条件进行下进行对比分析。结果在前屈、后伸、侧弯、和旋转工况下,生理曲度变直模型的活动度范围比正常值要小,并且出现再分配。在应力分布方面,C3-C4,C4-C5之间的小关节、钩突关节,和C3-C4之间的椎间盘出现应力集中。结论通过使用新型建模软件和体网格变形技术,能方便构建颈椎生理曲度变直和正常模型,分析结果对青年颈椎病的临床诊治有指导意义。
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| 关 键 词： | 生物力学 有限元方法 颈椎 生理曲度 |
FEM Modeling and Analysis of Straight and Normal Physiological Curvature Cervical Spine in Youth |
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| Wei Wei,Liao Shenghui,Lai Zhen.FEM Modeling and Analysis of Straight and Normal Physiological Curvature Cervical Spine in Youth[J].Shanghai Journal of Biomedical Engineering,2011(2):68-73. |
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| Authors: | Wei Wei Liao Shenghui Lai Zhen |
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| Institution: | Wei Wei1,Liao Shenghui2,Lai Zhen11.Department of Orthopaedic,Red Cross Hospital of Hangzhou(Hangzhou,310003)2.College of Computer Science and Technology,Zhejiang University(Hangzhou,310012) |
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| Abstract: | Objective To establish accurate finite element model of complete cervical spine with straight and normal physiological curvature in youth,then do comparation and analysis.Methods Choose some young patients with straight cervical spine and collect the CT scan data.By using specially designed modeling system,a high quality finite element model of complete cervical spine with straight physiological curvature is generated,which is then mapped to build a normal curvature model by volumetric mesh deformation meth... |
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| Keywords: | biomechanics finite element method cervical spine physiological curvature |
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