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Establishing a three-dimensional finite element model of human lumbar spine based on CT images
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- Author:
- No author available
- Issue:
- 26
- DOI:
- 10.3969/j.issn.1673-8225.2012.26.003
- Key Word:
- 腰椎;有限元模型;CT图像;Mimics;Ansys;数字化骨科
Abstract： 背景:与实验生物力学研究相比,有限元分析方法具有独特的优越性.如何准确地构建腰椎节段有限元模型是有限元分析的关键.目的:建立人体腰椎三维有限元模型用于生物力学分析.方法:利用GE 64排螺旋CT对成年男性腰部进行扫描,得到351层DICOM格式断层图像,应用Mimics软件进行三维重建,将所得模型以.stl格式导入Solidworks,生成实体模型,最后导入Ansys赋予材料属性并划分网格,得到便于分析的有限元模型.与体外生物力学实验数据对比,完成模型验证.结果与结论:成功地建立了表面光滑、外观逼真的腰椎有限元模型.该模型共有144 411个节点,88 742个单元,具有较高的准确性,且可以方便地施加约束和载荷,进行有限元分析.为临床腰椎三维有限元模型建立提供了一种精确而实用的方法,所建模型可以用来模拟腰椎生物力学实验.
- [1]闫家智,吴志宏,汪学松,等.腰椎三维有限元模型建立和应力分析[J].2009,(17).
- [2]鲍春雨,刘晋浩.基于CT图像人体脊柱腰椎节段逆向工程研究[J].2008,(9).
- [3]胡辉莹,何忠杰,吕丽萍,等.应用Mimics软件辅助重建人体胸廓三维有限元模型的研究[J].2008,(3).
- [4]万磊,李义凯.有限元方法在腰椎研究中的应用[J].2006,(2).
- [5]A. B. Schultz,D. N. Warwick,M. H. Berkson,etc.Mechanical Properties of Human Lumbar Spine Motion Segments-Part I: Responses in Flexion, Extension, Lateral Bending, and Torsion[J].1979,101(1).
- [6]Schmidt H,Shirazi Adl A,Galbusera F,etc.Response analysis of the lumbar spine during regular daily activities--a finite element analysis.[J].2010,43(10).
- [7]W J, VIRGIN.Experimental investigations into the physical properties of the intervertebral disc.[J].1951,33-B(4).
- [8]G B, Andersson,A B, Schultz.Effects of fluid injection on mechanical properties of intervertebral discs.[J].1979,12(6).
- [9]Argoubi M.,Shiraziadl A..Poroelastic Creep Response Analysis of a Lumbar Motion Segment in Compression[J].1996,29(10).
- [10]T. Belytschko,R.F. Kulak,A.B. Schultz,etc.Finite element stress analysis of an intervertebral disc[J].1974,7(3).
- [11]A F, Tencer,A M, Ahmed,D L, Burke.Some static mechanical properties of the lumbar intervertebral joint, intact and injured.[J].1982,104(3).
- [12]詹迪维主编 .SolidWorks高级应用教程[M].1900.
- [13]Graichen F,Bender A,Kayser R,etc.Loads on a telemeterized vertebral body replacement measured in three patients within the first postoperative month.[J].2008,23(2).
- [14]Zander T,Rao M,Rohlmann A,etc.Realistic loading conditions for upper body bending.[J].2009,42(7).
- [15]T, BROWN,R J, HANSEN,A J, YORRA.Some mechanical tests on the lumbosacral spine with particular reference to the intervertebral discs; a preliminary report.[J].1957,39-A(5).
- [16]Smith FW,Aspden RM,Gregory JS,etc.Characterizing the shape of the lumbar spine using an active shape model: reliability and precision of the method.[J].2008,33(7).
- [17]A, Shirazi-Adl,A M, Ahmed,S C, Shrivastava.A finite element study of a lumbar motion segment subjected to pure sagittal plane moments.[J].1986,19(4).
- [18]主编岳寿伟.腰椎间盘突出症的非手术治疗[M].2009.
- [19]K L, Markolf.Deformation of the thoracolumbar intervertebral joints in response to external loads: a biomechanical study using autopsy material.[J].1972,54(3).
- [20]Aspden RM,Meakin JR,Smith FW,etc.The effect of axial load on the sagittal plane curvature of the upright human spine in vivo.[J].2008,41(13).
- [21]Nakamura T,Iribe T,Asou.Effects of compressive loading on biomechanical properties of disc and peripheral tissue in a rat tail model.[J].2009,18(11).
- [22]Zander T,Rao M,Rohlmann A.Applying a follower load delivers realistic results for simulating standing.[J].2009,42(10).
- [23]Dong Suk Shin,Kunwoo Lee,Daniel Kim.Biomechanical study of lumbar spine with dynamic stabilization device using finite element method[J].2007,39(7).
- [24]Schmidt H,Heuer F,Wilke HJ.Dependency of disc degeneration on shear and tensile strains between annular fiber layers for complex loads.[J].2009,31(6).
- [25]Chosa E,Tajima N,Totoribe K,etc.Analysis of the effect of lumbar spine fusion on the superior adjacent intervertebral disk in the presence of disk degeneration, using the three-dimensional finite element method.[J].2004,17(2).