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全颈椎三维有限元模型建立及验证方法探讨 被引量:9
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作者 卢畅 韩珂 +3 位作者 李晶 王冰 吕国华 杨明 《医学临床研究》 CAS 2008年第3期389-392,共4页
【目的】探索一种快速、准确的全颈椎三维有限元模型建立和验证的方法。【方法】以一尸体颈段脊柱标本为研究对象,对其进行CT扫描以建立一全颈椎三维有限元模型,分别对模型和标本施加相同载荷,比较各椎间运动范围,以验证模型的有效性。... 【目的】探索一种快速、准确的全颈椎三维有限元模型建立和验证的方法。【方法】以一尸体颈段脊柱标本为研究对象,对其进行CT扫描以建立一全颈椎三维有限元模型,分别对模型和标本施加相同载荷,比较各椎间运动范围,以验证模型的有效性。【结果】整个模型共有23612个实体单元,15200个壳/膜单元。利用比较模拟实验和实体标本实验结果的方法对模型的有效性进行了验证。【结论】该模型具有良好的生物逼真度,通过有限元结果与尸体试验结果对比,具有良好的一致性,探索出了一种有效的全颈椎三维有限元模型的建立和验证方法,可应用于活体全颈椎三维有限元模型的建立。 展开更多
关键词 颈椎/生理学 颈椎/放射摄影术 模型 解剖学 生物力学
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Management of neglected cervical spine dislocation: a study of six cases 被引量:6
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作者 Vijay Goni Nirmal Raj Gopinathan +2 位作者 Vibhu Krishnan Rajesh Kumar Avinash Kumar 《Chinese Journal of Traumatology》 CAS CSCD 2013年第4期212-215,共4页
Objective: To report a case ser/es of six neglected cervical spine dislocations without neurological deficit, which were managed operatively. Methods: The study was conducted fromAugust 2010 to December 2011 and ca... Objective: To report a case ser/es of six neglected cervical spine dislocations without neurological deficit, which were managed operatively. Methods: The study was conducted fromAugust 2010 to December 2011 and cases were selected from the out- patient department of Postgraduate Institute of Medical Education and Research, India. The patients were in the age group of 30 to 50 years. All patients were operated via both anterior and posterior approaches. Results: During the immediate postoperative period, five (83.33%) patients had normal neurological status. One (16.67%) patient who had C5-C6 subluxation developed neu- rological deficit with sensory loss below C6 level and motor power of 2/5 in the lower limb and 3/5 in the upper limb below C6 level. Conclusion: There is no role of skull traction in ne- glected distractive flexion injuries to cervical spine delayed for more than 3 weeks. Posterior followed by anterior ap- proach saves much time. If both approaches are to be done in the same sitting, there is no need for instrumentation posteriorly. But if staged procedure is planed, posterior sta- bilization is recommended, as there is a risk of deterioration in neurological status. 展开更多
关键词 Cervical vertebrae NECK Postoperative complications
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