| 非创伤性生理曲度变直与颈椎退变关系的生物力学研究 |
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| 引用本文： | 魏威,廖胜辉,韩颖.非创伤性生理曲度变直与颈椎退变关系的生物力学研究[J].中华中医药学刊,2011(11):2474-2477. |
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| 作者姓名： | 魏威 廖胜辉 韩颖 |
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| 作者单位： | 杭州市红十字会医院骨科;上海辉擎信息科技有限公司生物力学有限元分析中心; |
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| 基金项目： | 浙江省中医药管理局资助项目(2009CB063) |
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| 摘 要： | 目的:精确建立生理曲度变直的颈椎全节段有限元模型,并进行验证,分析其与颈椎退变的关系。方法:选取符合颈椎曲度变直纳入标准的颈椎病患者采集其CT数据,采用专门的生物力学有限元建模软件从CT扫描数据构建高质量的颈椎全节段有限元模型,然后采用基于离散微分属性的体网格变形技术,将生理曲度变直的模型映射生成曲度正常的有限元模型,再在相同的边界和加载条件下进行有限元对比分析。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:通过构建高质量的生理曲度变直和曲度正常的颈椎全节段有限元模型进行生物力学对比实验证明颈椎生理曲度变直引起椎间活动度明显减少并且出现再分配,同时下颈椎的小关节、钩突关节、椎间盘应力集中,加速颈椎退变。
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| 关 键 词： | 生物力学 颈椎 生理曲度 退变 |
Biomechanics Investigation on Atraumatic Straight Physiological Curvature Cervical Spine and Cervical Spine Degeneration |
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| WEI Wei,LIAO Sheng-Hui,HAN Ying.Biomechanics Investigation on Atraumatic Straight Physiological Curvature Cervical Spine and Cervical Spine Degeneration[J].Chinese Archives of Traditional Chinese Medicine,2011(11):2474-2477. |
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| Authors: | WEI Wei LIAO Sheng-Hui HAN Ying |
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| Institution: | WEI Wei1,LIAO Sheng-Hui2,HAN Ying1 (1.Department of Orthopaedic in Red Cross Hospital of Hangzhou,Hangzhou 310003,Zhejiang,China,2.Biomechanical finite element analysis center,Shanghai E-feature Information Technology Co.,Ltd,Shanghai 200120,China) |
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| Abstract: | Objective: The goal is to establish accurate finite element model of complete cervical spine with straight physiological curvature,then do verification,and analyse relationship between straight physiological curvature cervical spine and cervical spine degeneration.Methods: Choose patients with straight cervical spine and collect the CT scan data.By using specailly designed modeling system E-feature Biomedical Modeler,a high quality finite element model of complete cervical spine with straight physiological ... |
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| Keywords: | Biomechanics Cervical spine Physiological curvature Degeneration |
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