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[1]刘治华,汤清△,陶德岗,等.全颈椎三维有限元模型的建立及旋转牵引疗法研究＊[J].生物医学工程研究,2018,03:362-366.
　LIU Zhihua,TANG Qing,TAO Degang,et al.The establishment of a finite element model of entire cervical vertebra and research of rotational traction therapy[J].Journal of Biomedical Engineering Research,2018,03:362-366.
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全颈椎三维有限元模型的建立及旋转牵引疗法研究＊(PDF)

《生物医学工程研究》[ISSN:1006-6977/CN:61-1281/TN]

期数:
2018年03期
页码:
362-366
栏目:
出版日期:
2018-09-25

文章信息/Info

Title:
The establishment of a finite element model of entire cervical vertebra and research of rotational traction therapy
文章编号:
1672-6278 (2018)03-0362-05
作者:
刘治华; 汤清△; 陶德岗; 张新民; 杨孟俭
郑州大学机械工程学院 河南　郑州 450001
Author(s):
LIU Zhihua; TANG Qing; TAO Degang;  ZHANG Xinmin;  YANG Mengjian
School of Mechanical Engineering, Zhengzhou University, Zhengzhou 450001, Henan Province，China
关键词:
颈椎; 有限元分析; 生物力学; 旋转牵引; 逆向工程
Keywords:
Cervical spine;  Finite element analysis;  Biomechanics;  Rotating traction;  Reverse engineering
分类号:
R318
DOI:
10.19529/j.cnki.1672-6278.2018.03.23
文献标识码:
A
摘要:
建立带颅骨的全颈椎三维有限元模型。探讨在旋转过程中，不同牵引角度对颈椎间盘的影响。采集1位无颈椎病病史成年男性志愿者的颈椎CT数据。应用Mimics17.0、Geomagic Studio13.0、Hypermesh13.0软件生成颈椎间盘及椎体CAD模型，并划分网格。然后导入Ansys Workbench15.0分析软件中，得到带颅骨全颈椎三维有限元模型，并验证该模型的有效性。最后在所建模型上添加载荷及约束，模拟人体头颅旋转角度牵引。同一大小牵引力作用下，在前倾情况下，颈椎间盘Z方向的轴向变形随牵引角度增大而逐渐变小，但在后伸和左右屈曲情况下，各个颈椎间盘的Z轴方向轴向变形会随随牵引角度的增大而逐渐增大。同时上颈椎椎间盘的变形幅度远比下颈椎［1］椎间盘的变形幅度要大。例C2~3在牵引角度为20°时，前伸变形幅度由27.7%减小到6.2%，后伸和左右屈曲的变形幅度分别增大到77.3%、58.3%、54.8%。颈椎间盘在旋转过程中其Z轴方向的轴向变形和最大应变呈现由小变大再变小的规律。本研究所建立的带颅骨全颈椎三维有限元模型，可用来进行颈椎旋转牵引的仿真分析。
Abstract:
To establish a three-dimensional finite element model of the entire cervical spine with skull and to investigate the influence of traction at different angles during the rotation on the cervical intervertebral disc. The cervical CT data of an adult male volunteer without a history of cervical spondylosis were obtained. Mimics17.0, Geomagic Studio13.0 and Hypermesh13.0 software were used to generate the CAD model of cervical intervertebral disc and vertebral body, and the mesh was divided. And then, the model was imported into Ansys Workbench15.0, a three dimensional finite element model was obtained and verified. Finally, after setting the boundary, the rotation of the cervical spine, angle traction was simulated, and the law of rotational traction finally was gotten. Under the same traction, with the increase of traction angle, in the bend forward situation, the deformation in the Z direction of the cervical intervertebral disc became smaller gradually. In the bend back，left and right flexion situation，the deformation in the Z direction of the cervical intervertebral disc became larger gradually. At the same time, the deformation range of the upper cervical disc was much larger than that of the lower cervical intervertebral disc［1］. For example,when the angle of traction was 20 degrees, the deformation amplitude of cervical intervertebral disc C2－3 was reduced from 27.7% to 6.2% in the bend forward situation.In the bend back and left and right flexion situation, the deformation amplitude increased to 77.3%, 58.3% and 54.8%，respectively.The deformation in the Z direction and maximum strain of the cervical intervertebral disc became smaller, larger, smaller, and so on.The three-dimensional finite element model of the whole cervical spine with skull can be used to perform the simulation analysis of cervical rotatory traction.

参考文献/References

备注/Memo

备注/Memo:
(收稿日期：2017-11-11) 河南省产学研合作项目（142107000011）。△通信作者Email：18336330572@163.com
更新日期/Last Update: 2018-09-30