Chinese Journal of Tissue Engineering Research ›› 2022, Vol. 26 ›› Issue (6): 870-874.doi: 10.12307/2022.168

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Establishment and validation of finite element model of lower cervical spine in 6-year-old children

Liu Yuhang1, Zhou Jianqiang2, Xu Xuebin1, Qu Xingyue1, Li Ziyu1, Li Kun3, Wang Xing3, Li Zhijun3, Li Xiaohe3, Zhang Shaojie3   

  1. 1Graduate School of Inner Mongolia Medical University, Hohhot 010110, Inner Mongolia Autonomous Region, China; 2Hohhot First Hospital, Hohhot 010030, Inner Mongolia Autonomous Region, China; 3Department of Human Anatomy, School of Basic Medicine, Inner Mongolia Medical University, Hohhot 010059, Inner Mongolia Autonomous Region, China
  • Received:2021-04-22 Revised:2021-04-24 Accepted:2021-06-05 Online:2022-02-28 Published:2021-12-07
  • Contact: Zhang Shaojie, Professor, Master’s supervisor, Department of Human Anatomy, School of Basic Medicine, Inner Mongolia Medical University, Hohhot 010059, Inner Mongolia Autonomous Region, China
  • About author:Liu Yuhang, Master candidate, Graduate School of Inner Mongolia Medical University, Hohhot 010110, Inner Mongolia Autonomous Region, China Zhou Jianqiang, Master, Hohhot First Hospital, Hohhot 010030, Inner Mongolia Autonomous Region, China Liu Yuhang and Zhou Jianqiang contributed equally to this article.
  • Supported by:
    National Natural Science Foundation of China, No. 81660358 (to ZSJ); Inner Mongolia Natural Science Foundation Funded Project, No. 2019MS08017 (to ZSJ); National Natural Science Foundation of China, No. 81860382 (to WX); National Natural Science Foundation of China, No. 81860383 (to LZJ); Inner Mongolia Natural Science Foundation Funded Project, No. 2020MS03061 (to WX); Inner Mongolia Natural Science Foundation, No. 2020LH08021 (to LZJ)

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Abstract: BACKGROUND: There are few finite element models of children’s cervical spine due to the unique developmental characteristics of children’s cervical spine and the complexity of its anatomical structure.  
OBJECTIVE: To establish a three-dimensional finite element model of cervical spine in children to simulate and analyze the neck mechanics before clinical operation.
METHODS:  The cervical spine images of 6-year-old normal girl cadaver specimens were collected. The three-dimensional finite element model of C3-C7 was constructed by using the software of Mimis 16.01, Pro/E 5.0, Geomagic Studio 2015, HyperMesh 14.0, and Abaqus 6.14, and the model was verified by the displacement and activity of each working condition. The protocol was performed in accordance with the relevant ethical requirements of Inner Mongolia Medical University (approval No. YKD2016063; approval date: 2016-03-07). The corpse specimens were provided by the volunteer cadaver donation room of Inner Mongolia Medical University, and the donor’s family members gave informed consent to the experiment.  
RESULTS AND CONCLUSION: (1) The three-dimensional finite element model of C3-C7 vertebrae in normal girls was successfully established. (2) The intervertebral mobility of the finite element model of cervical vertebrae in children under flexion, extension, left and right lateral flexion and left and right rotation conditions was consistent with the existing literature data, which confirmed the effectiveness of the model. (3) The results showed that the established finite element model of lower cervical vertebrae in children could provide model reference for clinical cervical surgery.

Key words: finite element model, biomechanics, cervical spine, stress, child

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