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[1]張明才,陳博,石印玉,等.頸椎單節(jié)椎體平移錯縫對頸椎主要結(jié)構(gòu)應(yīng)力影響的有限元分析[J].中醫(yī)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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頸椎單節(jié)椎體平移錯縫對頸椎主要結(jié)構(gòu)應(yīng)力影響的有限元分析()
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《中醫(yī)正骨》[ISSN:1001-6015/CN:41-1162/R]

卷:
第32卷
期數(shù):
2020年04期
頁碼:
1-8
欄目:
基礎(chǔ)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:
張明才1; 陳博2; 石印玉1; 石瑛1; 王翔1; 陳東煜1; 熊軼喆1; 元唯安1; 王輝昊1; 詹紅生1
(1.上海中醫(yī)藥大學(xué)附屬曙光醫(yī)院,上海 201203; 2.上海交通大學(xué)醫(yī)學(xué)院附屬瑞金醫(yī)院傷骨科研究所,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
關(guān)鍵詞:
頸椎;  頸椎病;  骨錯縫;  應(yīng)力; 物理;  有限元分析;  生物力學(xué)
Keywords:
cervical vertebrae;  cervical spondylosis;  mild malposition of bone and joint;  stress; mechanical;  finite element analysis;  biomechanics
摘要:
探討頸椎單節(jié)椎體平移錯縫對頸椎主要結(jié)構(gòu)應(yīng)力的影響。方法:選取1名無頸部病變的健康志愿者,采用GE 64層螺旋CT機對該志愿者進行層厚0.625 mm的螺旋掃描及斷層圖像處理,掃描范圍為顱底至C7椎體下緣。基于CT掃描數(shù)據(jù),應(yīng)用三維有限元建模處理軟件建立正常頸椎三維有限元模型,并對模型進行有效性驗證。基于建立的正常頸椎三維有限元模型,通過對各特定節(jié)段椎體分別進行平移運動(位移1.5 mm,不超過椎間盤1/4),模擬頸椎單節(jié)椎體平移錯縫,獲得頸椎單節(jié)椎體平移錯縫三維有限元模型。基于Abaqus6.10有限元分析軟件觀察頸椎單節(jié)椎體平移錯縫對椎動脈、脊髓、關(guān)節(jié)突關(guān)節(jié)、椎間盤等頸椎主要結(jié)構(gòu)應(yīng)力的影響。結(jié)果:①正常頸椎三維有限元模型驗證結(jié)果。本研究所建立的正常頸椎三維有限元模型涉及744 628個單元、248 212個節(jié)點; 模型外觀逼真,包含了頸椎椎體、椎板、棘突、橫突、關(guān)節(jié)突、椎間盤、椎動脈、脊髓、韌帶等重要解剖結(jié)構(gòu)。模型具有良好的活動度,其前屈、后伸、側(cè)屈、旋轉(zhuǎn)活動度與經(jīng)典文獻報道的數(shù)據(jù)基本一致。②頸椎單節(jié)椎體平移錯縫對頸椎主要結(jié)構(gòu)應(yīng)力的影響。頸椎單節(jié)椎體平移錯縫會對椎動脈、脊髓、關(guān)節(jié)突關(guān)節(jié)及椎間盤的應(yīng)力產(chǎn)生影響。C2平移錯縫時椎動脈增加的應(yīng)力最大(42.81 Pa),C6次之(30.62 Pa),C5最小(21.19 Pa)。C6平移錯縫時脊髓增加的應(yīng)力最大(32.12 Pa),C5次之(30.46 Pa),C1最小(5.59 Pa)。頸椎單節(jié)椎體平移錯縫會對其上、下位關(guān)節(jié)突關(guān)節(jié)及椎間盤的應(yīng)力產(chǎn)生影響,其下位關(guān)節(jié)突關(guān)節(jié)和椎間盤的應(yīng)力大于上位關(guān)節(jié)突關(guān)節(jié)和椎間盤的應(yīng)力。結(jié)論:頸椎單節(jié)椎體平移錯縫后,椎動脈、脊髓、關(guān)節(jié)突關(guān)節(jié)及椎間盤等頸椎主要結(jié)構(gòu)的應(yīng)力均會受到影響。
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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備注/Memo

備注/Memo:
(收稿日期:2019-10-25 本文編輯:李曉樂)基金項目:國家自然科學(xué)基金項目(81473702,81503596,81001528); 中醫(yī)骨傷科學(xué)國家重點學(xué)科項目(100508); 上海市重中之重臨床醫(yī)學(xué)中心和重點學(xué)科建設(shè)項目(2017ZZ02024); 海派中醫(yī)流派傳承研究基地建設(shè)項目(ZY3-CCCX-1-1003); 上海市科學(xué)技術(shù)委員會科研計劃項目(15401934100,16401970100); 上海市中醫(yī)藥新興交叉學(xué)科資助計劃項目(滬衛(wèi)計中發(fā)[2017]024號); 上海市中西醫(yī)臨床協(xié)作試點項目(ZXYXZ-201703); 上海市衛(wèi)生和計劃生育委員會中醫(yī)藥科技創(chuàng)新項目(ZYKC201602006) 通訊作者:詹紅生 E-mail:[email protected]
更新日期/Last Update: 2020-07-31