中国组织工程研究 ›› 2021, Vol. 25 ›› Issue (35): 5632-5637.doi: 10.12307/2021.292

• 组织构建实验造模 experimental modeling in tissue construction • 上一篇    下一篇

成年猕猴C0-T1全颈椎有限元模型的建立及有效性验证

王  星1,2,徐雪彬2,张少杰1,2,郑秉武3,杨  喜2,王超群4,栗  平5,马  渊6,李  琨2,陈  杰2,李筱贺2,史  君7,李志军1,2   

  1. 1北京中医药大学中医学院,北京市   101000;内蒙古医科大学基础医学院,2解剖学教研室,6数字医学中心,7生理学教研室,内蒙古自治区呼和浩特市   010110
  • 收稿日期:2020-07-24 修回日期:2020-08-18 接受日期:2020-10-16 出版日期:2021-12-18 发布日期:2021-08-03
  • 通讯作者: 李志军,教授,博士生导师,北京中医药大学中医学院,北京市 101000;内蒙古医科大学基础医学院解剖学教研室,内蒙古自治区呼和浩特市 010110
  • 作者简介:王星,男,1979年生,内蒙古自治区乌拉特中旗人,北京中医药大学中医学院在读博士,讲师,主要从事脊柱脊髓的数字与临床应用解剖学研究
  • 基金资助:
    国家自然科学基金(81860382),项目负责人:王星;国家自然科学基金(81860383,81560348),项目负责人:李志军;国家自然科学基金(81660358),项目负责人:张少杰;内蒙古自然科学基金(2020MS03061),项目负责人:王星;内蒙古自然科学基金(2019MS08017),项目负责人:张少杰;内蒙古自然科学基金(2019MS08139),项目负责人:陈杰;内蒙古自治区科技发展计划项目(2019GG158),项目负责人:王星;内蒙古自治区科技发展计划项目(2019GG111),项目负责人:栗平;内蒙古医科大学科技百万项目(YKD2017KJBW009),项目负责人:王星;内蒙古医科大学科技百万项目(2015YKDKJBW03),项目负责人:张少杰;内蒙古医科大学青年创新基金(TKD2018QNCX071),项目负责人:王超群

Establishment and validation of C0-T1 finite element model of cervical vertebrae in adult rhesus monkeys

Wang Xing1, 2, Xu Xuebin2, Zhang Shaojie1, 2, Zheng Bingwu3, Yang Xi2, Wang Chaoqun4, Li Ping5, Ma Yuan6, Li Kun2, Chen Jie2, Li Xiaohe2,   Shi Jun7, Li Zhijun1, 2   

  1. 1School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing 101000, China; 2Department of Anatomy, 6Center for Digital Medicine, 7Department of Physiology, School of Basic Medical Sciences, Inner Mongolia Medical University, Hohhot 010110, Inner Mongolia Autonomous Region, China
  • Received:2020-07-24 Revised:2020-08-18 Accepted:2020-10-16 Online:2021-12-18 Published:2021-08-03
  • Contact: Li Zhijun, Professor, Doctoral supervisor, School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing 101000, China; Department of Anatomy, School of Basic Medical Sciences, Inner Mongolia Medical University, Hohhot 010110, Inner Mongolia Autonomous Region, China
  • About author:Wang Xing, MD candidate, Lecturer, School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing 101000, China; Department of Anatomy, School of Basic Medical Sciences, Inner Mongolia Medical University, Hohhot 010110, Inner Mongolia Autonomous Region, China
  • Supported by:
    the National Natural Science Foundation of China, No. 81860382 (to WX), 81860383, 81560348 (both to LZJ), and 81660358 (to ZSJ); Inner Mongolia Natural Science Foundation, No. 2020MS03061 (to WX), 2019MS08017 (to ZSJ), and 2019MS08139 (to CJ); Science and Technology Development Projects of Inner Mongolia Autonomous Region, No. 2019GG158 (to WX) and 2019GG111 (to LP); Science and Technology Million Project of Inner Mongolia Medical University, No. YKD2017KJBW009 (to WX) and 2015YKDKJBW03 (to ZSJ); Youth Innovation Fund of Inner Mongolia Medical University, No. TKD2018QNCX071 (to WCQ)

摘要:

文题释义:
猕猴颈椎:猕猴属非人灵长类实验动物,其在脊柱解剖结构、运动生理功能等方面同人类非常接近而成为极具实验价值的动物。
有限元模型分析法:是近年来研究人体生物力的有效方法,其基本原理是把连续的物体离散为一组有限个、按一定方式相互联结在一起的单元组合体,然后求其相互之间的关系及特征。
背景:猕猴与人类均属灵长类,其颈椎结构和生理功能及生存条件与人类十分相似,但目前对于猕猴全颈椎有限元分析的研究甚少。
目的:建立成年猕猴C0-T1颈椎有限元模型及相关运动效能与人类颈椎的有限元模型之间进行对比研究,以发现其差异性。
方法:选择7岁龄成年雄性猕猴1只,于2019年12月在内蒙古医科大学附属医院影像科行多层螺旋CT扫描,将其原始颈椎CT数据导入Mimics 21.0中初步建立三维模型,用 Cero 优化模型几何结构,得到其颈椎仿真三维模型。将装配模型导入Hypermesh行四面体网格化,划分颈椎各节段、椎间盘、韧带等组织网格;再利用Abaqus&ANSYS构建颈椎有限元模型,同时参考相关有限元模型文献进行有效性验证。
结果与结论:①成功建立猕猴颈椎三维(包含C0-T1及6个椎间盘、相关韧带)有限元模型,共536 215单元、461 915节点,模型整体仿真度高,细小结构进行了较高精度还原,具备较高的生物仿真性;②将该模型活动度与人类颈椎模型相关文献比较:前后屈伸均较正常成人小(P < 0.05)、左右侧弯C2-3、C3-4、C6-7节段小于文献标准差范围(P < 0.05),而轴向旋转与以往文献对比差异不大(P > 0.05);③说明猕猴颈椎有限元模型的运动效能与人类颈椎有限元模型存在较大的差异性,可为猕猴颈椎造模研究提供理论依据。
https://orcid.org/0000-0003-0059-4921 (王星) 

关键词: 成年猕猴, 全颈椎, 有限元分析, 数字模型, 人类

Abstract: BACKGROUND: Both rhesus monkeys and humans belong to primates, and their cervical vertebra structure, physiological function and living conditions are very similar to those of human beings. However, there are few studies on the finite element analysis of the whole cervical vertebra of rhesus monkeys.
OBJECTIVE: To establish the C0-T1 finite element model of cervical vertebrae of adult rhesus monkeys and to make a comparative study between the finite element models of cervical vertebrae of adult rhesus monkeys and human cervical vertebrae in order to find out the difference. 
METHODS: A 7-year-old adult male rhesus monkey was selected and scanned by multi-slice spiral CT in the Imaging Department of the affiliated Hospital of Inner Mongolia Medical University in December 2019. The original CT data of cervical vertebrae were introduced into Mimics21.0 to establish a preliminary three-dimensional model, and the geometric structure of the model was optimized by Cero to get the simulation three-dimensional model of cervical vertebrae. The assembly model was imported into Hypermesh for tetrahedral gridding to divide the tissue grids of various segments, intervertebral discs and ligaments of cervical vertebrae. Then the finite element model of cervical vertebra was constructed by Abaqus&ANSYS, and the validity was verified by referring to the relevant finite element model literature. 
RESULTS AND CONCLUSION: The three-dimensional finite element model of cervical vertebra of rhesus monkey (including C0-T1 and six intervertebral discs and related ligaments) was successfully established, with a total of 536 215 elements and 461 915 nodes. The overall simulation of the model was high, and the fine structure was restored with high precision, resulting in a high biological simulation performance. Comparing the range of motion of this model with that of human cervical vertebra model, we found that the flexion and extension of this model were smaller than those of normal adults (P < 0.05), and left and right lateral bending of C2-3, C3-4 and C6-7 segments was smaller than the range of standard deviation as reported (P < 0.05). However, axial rotation showed no significant difference as compared with the value reported previously (P > 0.05). To conclude, there is a great difference in the exercise efficiency between the finite element models of rhesus monkey cervical vertebra and human cervical vertebra, which can provide a theoretical basis for the study of rhesus monkey cervical vertebra modeling.

Key words: adult rhesus monkey, whole cervical vertebra, finite element analysis, digital model, human

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