[1]梁　韬　孟春玲　尹一恒　刘广伟　余新光.基于HyperMesh建立颅底陷入合并寰枕融合畸形的三维有限元模型[J].中国临床神经外科杂志,2016,(03):155-157,160.[doi:10.13798/j.issn.1009-153X.2016.03.008]
　LIANG Tao,MENG Chun-ling,YIN Yi-heng,et al.Establishment of a three-dimensional finite element model of basilar invagination and occipitalization of atlas on HyperMesh[J].,2016,(03):155-157,160.[doi:10.13798/j.issn.1009-153X.2016.03.008]
点击复制

基于HyperMesh建立颅底陷入合并寰枕融合畸形的三维有限元模型()
分享到：

《中国临床神经外科杂志》[ISSN:1009-153X/CN:42-1603/TN]

卷:
期数:
2016年03期
页码:
155-157,160
栏目:
论著
出版日期:
2016-03-25

文章信息/Info

Title:
Establishment of a three-dimensional finite element model of basilar invagination and occipitalization of atlas on HyperMesh
文章编号:
1009-153X（2016）03-0155-03
作者:
梁　韬　孟春玲　尹一恒　刘广伟　余新光
100048 北京，北京工商大学材料与机械工程学院（梁　韬、孟春玲、刘广伟）;
100853 北京，解放军总医院神经外科（尹一恒、余新光）
通讯作者：孟春玲，E-mail：284126444@qq.com
Author(s):
LIANG Tao1;  MENG Chun-ling1;  YIN Yi-heng2;  LIU Guang-wei1;  YU Xin-guang2.
1. School of Material and Mechanical Engineering, Beijing Technology and Business University, Beijing 100048, China;
2. Department of Neurosurgery, PLA General Hospital, Beijing 100853, China
关键词:
颅底陷入症; 寰枕融合畸形; 三维有限元模型; HyperMesh
Keywords:
Basilar invagination;  Occipitalization of Atlas;  Finite element analysis;  Model;  Hypermesh
分类号:
R 651.1+9
DOI:
10.13798/j.issn.1009-153X.2016.03.008
文献标志码:
A
摘要:
目的 探讨建立颅底陷入合并寰枕融合畸形的三维有限元模型的方法。方法 采集1例颅底陷入合并寰枕融合畸形患者的颅颈交界区的CT薄层扫描数据，利用Mimics软件对CT数据进行处理，生成三维几何表面模型，并导出点云；采用逆向工程软件Imageware处理点云数据，生成三维曲面；采用四面体与六面体混合分网的思路，利用HyperMesh对曲面模型先分块再分网，最后导出网格模型；将网格模型导入有限元软件Abaqus，进行韧带添加、材料赋值、接触定义、边界约束等，得到寰枕融合畸形三维有限元模型。结果 建立的有限元模型包含474 162个单元和235 524个节点，外观逼真，几何相似性较好，可根据不同实验目的进行加载分析，对复杂载荷条件进行仿真计算。结论 利用HyperMesh等软件的前处理功能建立的颅底陷入合并寰枕融合三维有限元模型，可为颅颈交界区畸形的生物力学研究提供基础，可为上颈椎畸形有限元模型的建立提供参考。
Abstract:
Objective To explore how to establish a three-dimensional finite element model of basilar invagination and occipitalization of atlas. Methods The CT data of craniovertebral junction in a typical patient with basilar invagination and occipitalization of atlas was collected. Mimics software was used to edit CT pictures and generate the three-dimensional geometric model of atlanto-occipital fusion corpus and axis surface. Then point cloud was exported. Reverse engineering software of Imageware was used to process point cloud data and generate three-dimensional curved surface. The surface model was blocked first and then meshed by Hypermesh software. The mesh model was finally exported by the method of mix-meshing in tetrahedrons and hexahedrons. The mesh model was imported into finite element software of Abaqus. Finite element model was established by adding ligaments, assigning material, defining contact and defining boundary. Results The finite element model of basilar invagination and occipitalization of atlas contained 474,162 elements and 235,524 notes with good geometric similarity. Conclusion The three-dimensional finite element model of basilar invagination and occipitalization of atlas provides the basis for the research on craniovertebral junction malformation, and it can be used for reference of establishment of finite element model in upper cervical spine malformation.

参考文献/References:

[1] 刘　策，周定标，余新光，等. 寰枕融合的形态生物力学分 析[J]. 中国临床神经外科杂志，2007，12：1-3.
[2] Yoganandan N, Kumaresan S, Pintar FA. Biomechanics of the cervical spine--Part2: Cervical spine soft tissue res- ponses and biomechanical modeling [J]. Clin Biomech (Bristol, Avon), 2001, 16(1): 1-27.
[3] Srirangam K, Narayan Y, Frank AP. Finite element modeling approaches of human cervical spine facet joint capsule [J]. J Biomech, 1998, 31: 371-376.
[4] Brolin K, Halldin P. Development of a finite element model of the upper cervical spine and a parameter study of liga- ment characteristics [J]. Spine (Phila Pa 1976), 2004, 29(4): 376-385.
[5] 柳　超，田纪伟，王　雷，等. 寰枢椎复合体三维有限元模 型的建立与分析[J]. 中国矫形外科杂志，2013，21（19）： 1970-1976.
[6] 杨　生，孟春玲，王　鹏，等. 枕寰枢复合体有限元模型的 建模研究[J]. 计算机仿真，2011，28（1）：268-272.
[7] Devries Watson NA, Gandhi AA, Fredericks DC, et al. Sheep cervical spine biomechanics: a finite element study [J]. Iowa Orthop J, 2014, 34: 137-143.
[8] 朱忠培，王利民，刘屹林，等. 寰枕融合[J]. 医药论坛杂志， 2012，33（2）：F0003-F0004.
[9] 尹一恒，余新光，王　鹏，等. 寰枕融合下的颅颈交界区有 限元生物力学分析[J]. 中华外科杂志，2015，53（3）：211- 214.
[10] 姜广宗，李学锋，聂　林，等. 利用MIMICS和ABAQUS建 立正常人颈椎的三维有限元模型[J]. 中国矫形外科杂 志，2013，21（11）：1114-1120.
[11] 张　荣. 四面体与六面体网格特征比较[J]. 企业技术开 发，2012，31（23）：101-102.
[12] 何宏伟，王泽恩，赵慧毅，等. 解剖学和影像学观察寰枢关 节及相关结构的对比研究[J]. 中国中医骨伤科杂志， 2010，18（9）：1-3.

相似文献/References:

[1]苏建云 综述　王　鹏　李维新 审校.颅底陷入症的手术方法选择和术后并发症防治[J].中国临床神经外科杂志,2015,(02):125.[doi:10.13798/j.issn.1009-153X.2015.02.023]

备注/Memo

备注/Memo:
基金项目：国家自然科学基金（81301274）；中国博士后基金（2014M552653）
更新日期/Last Update: 2016-06-30