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[1]程毅,涂强,夏虹.军事训练中韧带损伤型上颈椎失稳的三维动力模型建立及有限元分析[J].医学研究与战创伤救治(原医学研究生学报),2022,24(5):449-453.[doi:10.3969/j.issn.1672-271X.2022.05.001]
　CHENG Yi,TU Qiang,XIA Hong.Establishment of three-dimensional dynamic model and finite element analysis of ligament injury type upper cervical instability in military training[J].JOURNAL OF MEDICALRESEARCH —COMBAT TRAUMA CARE,2022,24(5):449-453.[doi:10.3969/j.issn.1672-271X.2022.05.001]
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军事训练中韧带损伤型上颈椎失稳的三维动力模型建立及有限元分析()
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《医学研究与战创伤救治》（原医学研究生学报）[ISSN:1672-271X/CN:32-1713/R]

卷:
第24卷
期数:
2022年5期
页码:
449-453
栏目:
出版日期:
2022-11-02

文章信息/Info

Title:
Establishment of three-dimensional dynamic model and finite element analysis of ligament injury type upper cervical instability in military training
作者:
程毅; 涂强; 夏虹
作者单位：510080广州，南部战区总医院骨科（程毅、涂强、夏虹）
Author(s):
CHENG Yi; TU Qiang; XIA Hong
（Department of Orthopedics,General Hospital of Southern Theater Command, PLA,Guangzhou 510080,Guangdong,China）
关键词:
军事训练; 韧带损伤; 上颈椎失稳; 有限元分析
Keywords:
Military training;  ligament injury;  upper cervical instability;  finite element analysis
分类号:
R648
DOI:
10.3969/j.issn.1672-271X.2022.05.001
文献标志码:
A
摘要:
目的通过有限元分析技术建立韧带损伤型上颈椎的三维动力学模型以明确枕下各韧带的运动学特征，为军事训练中韧带损伤型上颈椎失稳临床新诊断标准的建立提供理论基础。方法根据1名27岁男性志愿者上颈椎CT薄层扫描图像文件导入Mimics10.0三维重建软件重建三维几何模型。使用Freefrom 5.0结构优化软件对几何模型进行处理后录入Ansys 10.0有限元软件, 重建出上颈椎的骨性有限元模型。根据相关数据资料构建各韧带结构。通过三维动力建模对枕下各韧带的生物力学特性进行评估。结果 ①屈曲伸展时,寰枢前韧带、寰枢后韧带、枕寰前韧带、枕寰后韧带和尖韧带的长度变化>25%，而其他韧带的长度变化较小（P<0.05）；在力矩臂方面，寰枢后韧带和枕寰后韧带等韧带的变化幅度较大，枕寰后韧带的力矩臂变化较大(P<0.05)。②轴向旋转时,寰枢前韧带、寰枢后韧带和翼状韧带的轴向旋转相对中立位长度变化最大；与其他韧带相比，寰枢后韧带表现出更大的力矩臂幅度和变化量，在两个运动方向上都有增加的趋势。相比之下，寰枢前韧带组仅在同侧最大旋转时力矩臂显著减少(P<0.05)。横韧带最大同侧轴向旋转时力矩臂显著增加，最大对侧旋转时力矩臂显著减小(P<0.05)。结论通过量化长度和力矩臂大小，提供了上颈椎韧带在屈伸和轴向旋转时的相关生物力学特征，利于提高韧带损伤型上颈椎失稳的认知。
Abstract:
ObjectiveTo establish a three-dimensional dynamic model of the upper cervical spine with ligament injury by finite element analysis technique to clarify the kinematic characteristics of each suboccipital ligament and provide a theoretical basis for the establishment of new clinical diagnostic criteria.MethodsThe biomechanical properties of suboccipital ligaments were evaluated by three-dimensional dynamic modeling.Results①The length of atlanto-pivotal anterior ligament, atlanto-pivotal posterior ligament, occipitoatlantal anterior ligament, occipitoatlantal posterior ligament and apical ligament changed by >25%, while the length of other ligaments changed little（P<0.05）; in terms of moment arm, the change range of ligaments such as atlanto-pivotal posterior ligament and occipitoatlantal posterior ligament was greater, and the moment arm of occipitoatlantal posterior ligament changed greatly（P<0.05）. ②the axial rotation of the atlanto-pivotal anterior ligament, atlanto-pivotal posterior ligament, and alar ligament changed the most from the neutral length; the atlanto-pivotal posterior ligament showed a greater moment arm amplitude and amount of change compared with other ligaments, with a tendency to increase in both directions of motion. In contrast, the atlanto-pivotal anterior ligament group had a significantly reduced moment arm only at maximal rotation on the same side（P<0.05）. The moment arm increased significantly during maximal coaxial rotation of the transverse ligament and decreased significantly during maximal rotation（P<0.05）.ConclusionBy quantifying the length and moment arm, the biomechanical characteristics of upper cervical ligaments in flexion, extension and axial rotation are provided, which is helpful to improve the cognition of upper cervical instability caused by ligament injury.

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备注/Memo

备注/Memo:
基金项目：军队后勤科研项目(CLB20J033) ；广州市科技计划项目（201904010349）
更新日期/Last Update: 2022-11-16