[1]张明才,陈博,石印玉,等.颈椎单节椎体平移错缝对颈椎主要结构应力影响的有限元分析[J].中医正骨,2020,32(04):1-8.
　ZHANG Mingcai,CHEN Bo,SHI Yinyu,et al.Influence of translational dislocation of single-segment cervical vertebral body on the stresses of main structures of cervical vertebra:a finite element analysis[J].The Journal of Traditional Chinese Orthopedics and Traumatology,2020,32(04):1-8.
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颈椎单节椎体平移错缝对颈椎主要结构应力影响的有限元分析()
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《中医正骨》[ISSN:1001-6015/CN:41-1162/R]

卷:
第32卷
期数:
2020年04期
页码:
1-8
栏目:
基础研究
出版日期:
2020-04-20

文章信息/Info

Title:
Influence of translational dislocation of single-segment cervical vertebral body on the stresses of main structures of cervical vertebra:a finite element analysis
作者:
张明才1; 陈博2; 石印玉1; 石瑛1; 王翔1; 陈东煜1; 熊轶喆1; 元唯安1; 王辉昊1; 詹红生1
(1.上海中医药大学附属曙光医院,上海 201203; 2.上海交通大学医学院附属瑞金医院伤骨科研究所,上海 200020)
Author(s):
ZHANG Mingcai1; CHEN Bo2; SHI Yinyu1; SHI Ying1; WANG Xiang1; CHEN Dongyu1; XIONG Yizhe1; YUAN Weian1; WANG Huihao1; ZHAN Hongsheng1
1.Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine,Shanghai 201203,China 2.Institute of Traumatology and Orthopedics of Ruijin Hospital Affiliated to Shanghai Jiaotong University School of Medicine,Shanghai 200020,China
关键词:
颈椎;  颈椎病;  骨错缝;  应力; 物理;  有限元分析;  生物力学
Keywords:
cervical vertebrae;  cervical spondylosis;  mild malposition of bone and joint;  stress; mechanical;  finite element analysis;  biomechanics
摘要:
探讨颈椎单节椎体平移错缝对颈椎主要结构应力的影响。方法:选取1名无颈部病变的健康志愿者,采用GE 64层螺旋CT机对该志愿者进行层厚0.625 mm的螺旋扫描及断层图像处理,扫描范围为颅底至C7椎体下缘。基于CT扫描数据,应用三维有限元建模处理软件建立正常颈椎三维有限元模型,并对模型进行有效性验证。基于建立的正常颈椎三维有限元模型,通过对各特定节段椎体分别进行平移运动(位移1.5 mm,不超过椎间盘1/4),模拟颈椎单节椎体平移错缝,获得颈椎单节椎体平移错缝三维有限元模型。基于Abaqus6.10有限元分析软件观察颈椎单节椎体平移错缝对椎动脉、脊髓、关节突关节、椎间盘等颈椎主要结构应力的影响。结果:①正常颈椎三维有限元模型验证结果。本研究所建立的正常颈椎三维有限元模型涉及744 628个单元、248 212个节点; 模型外观逼真,包含了颈椎椎体、椎板、棘突、横突、关节突、椎间盘、椎动脉、脊髓、韧带等重要解剖结构。模型具有良好的活动度,其前屈、后伸、侧屈、旋转活动度与经典文献报道的数据基本一致。②颈椎单节椎体平移错缝对颈椎主要结构应力的影响。颈椎单节椎体平移错缝会对椎动脉、脊髓、关节突关节及椎间盘的应力产生影响。C2平移错缝时椎动脉增加的应力最大(42.81 Pa),C6次之(30.62 Pa),C5最小(21.19 Pa)。C6平移错缝时脊髓增加的应力最大(32.12 Pa),C5次之(30.46 Pa),C1最小(5.59 Pa)。颈椎单节椎体平移错缝会对其上、下位关节突关节及椎间盘的应力产生影响,其下位关节突关节和椎间盘的应力大于上位关节突关节和椎间盘的应力。结论:颈椎单节椎体平移错缝后,椎动脉、脊髓、关节突关节及椎间盘等颈椎主要结构的应力均会受到影响。
Abstract:
Objective:To explore the influence of translational dislocation of single-segment cervical vertebral body on the stresses of main structures of cervical vertebra.Methods:A healthy volunteer without cervical lesions was selected.The spiral scanning was performed on the volunteer by using GE 64-MSCT with 0.625-mm slice thickness from skull base to inferior border of C7 vertebral body,and the tomographic image processing was carried out.Based on CT scanning data,a three-dimensional(3D)finite element model of normal cervical vertebra was built by using 3D finite element modeling and processing software,and its validity was verified.The translational dislocation of single-segment cervical vertebral body was simulated in the 3D finite element model of normal cervical vertebra,and a 3D finite element model of translational dislocation of single-segment cervical vertebral body was obtained.The influence of translational dislocation of single segment cervical vertebral body on stresses of main cervical structures including vertebral artery,spinal cord,zygapophyseal joint and intervertebral disc was observed by using Abaqus6.10 finite element analysis software.Results:The 3D finite element model of normal cervical vertebra involved 744,628 units and 248,212 nodes and included important anatomical structures such as cervical vertebral body,vertebral plate,spinous process,transverse process,articular process,intervertebral disc,vertebral artery,spinal cord and ligament,moreover,the model had very realistic appearance and good range of motion including anteflexion,backward extension,rotation and lateral flexion,which were basically consistent with the literature data.The stresses of vertebral artery,spinal cord,zygapophyseal joint and intervertebral disc can be affected by translational dislocation of single-segment cervical vertebral body.The vertebral artery had high-to-low increased stress when translational dislocation was performed on C2(42.81 Pa),C6(30.62 Pa)and C5(21.19 Pa)in turn.The spinal cord had high-to-low increased stress when translational dislocation was performed on C6(32.12 Pa),C5(30.46 Pa)and C1(5.59 Pa)in turn.The stresses of superior and inferior zygapophyseal joints and intervertebral discs can be affected by translational dislocation of single-segment cervical vertebral body,and the stresses of inferior zygapophyseal joint and intervertebral disc were greater than that of superior zygapophyseal joint and intervertebral disc.Conclusion:The stresses of main structure of cervical vertebra,including vertebral artery,spinal cord,zygapophyseal joint and intervertebral disc,can be affected by translational dislocation of single-segment cervical vertebral body.

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备注/Memo

备注/Memo:
(收稿日期:2019-10-25 本文编辑:李晓乐)基金项目:国家自然科学基金项目(81473702,81503596,81001528); 中医骨伤科学国家重点学科项目(100508); 上海市重中之重临床医学中心和重点学科建设项目(2017ZZ02024); 海派中医流派传承研究基地建设项目(ZY3-CCCX-1-1003); 上海市科学技术委员会科研计划项目(15401934100,16401970100); 上海市中医药新兴交叉学科资助计划项目(沪卫计中发[2017]024号); 上海市中西医临床协作试点项目(ZXYXZ-201703); 上海市卫生和计划生育委员会中医药科技创新项目(ZYKC201602006) 通讯作者:詹红生 E-mail:zhanhongsheng2010@163.com
更新日期/Last Update: 2020-07-31