包含肌肉、韧带组织的骨盆、髋臼3D有限元模型的构建  

Establishing three-dimensional finite element model of pelvic and acetabulum including muscle and ligament around hip

作　　者：刘欣伟[1,7] 闫寒[1] 刘中洋[2] 陈慧群[3] 彭大振[4] 孙大志[5] 郭慧慧[5] 赵立刚 赵东风[1] 

机构地区：[1]解放军第210医院骨科 [2]解放军第210医院药剂科 [3]解放军第210医院消化内科 [4]解放军第210医院泌尿外科 [5]解放军第210医院麻醉科 [6]93392部队卫生队 [7]沈阳军区总医院骨科,全军重症战创伤救治中心,沈阳军区总医院博士后工作站

出　　处：《临床军医杂志》2014年第4期331-335,共5页Clinical Journal of Medical Officers

基　　金：大连市卫生局科研项目(大卫科发[2013]192号)

摘　　要：目的尝试建立包含肌肉、韧带组织的骨盆、髋臼3D有限元模型。方法基于多层螺旋CT扫描图片,经医学影像处理及建模软件Mimics 10.01和Simpleware 4.0建立起正常成人的骨盆髋臼实体模型,将由ScanIP模块下生成的8块特征骨组件的三角网格模型分别导入逆向工程软件Geomagic studio 10.0中进行修补与优化并进行模型的建立。结果建立的人骨盆髋臼3D模型有限元节点数68 352个,单元数263 320个,该3D有限元模型严格符合骨盆髋臼生理解剖结构,股骨头于髋关节内可做各向活动,于计算机中可进行模拟观察。各解剖结构可分离显示,可通过加载应力现实力学特性。结论包含肌肉及韧带的骨盆髋臼3D有限元模型,可以更逼真的显示骨盆髋臼生理解剖结构,更加符合人体解剖结构特点并贴近真实,在此基础上进行的力学加载计算结果将更加可靠。Objective To establish three-dimensional （3-D） finite element model （FEM） of pelvic and aeetabulum including mus- cle and ligament around hip. Methods Based on CT images, the 3-D solid models were established through the medical image processing and modeling software Mimics 10.01 and Simpleware 4.0. We put the STL model of 8 special bone parts generated by ScanlP module into the reverse engineering software Geomagic studio 10.0 for repairing, optimization and establishment of the model. Results The human pelvic and acetabulum 3-D FEM was divided into 68 352 nodes and 263 320 units. All the models were effec- tive and clearly reflected the real pelvic anatomy. Femoral head could be moved within the hip joint to the various activities and ob- served in computer simulation. Various anatomical structures could be separated, according to reality by loading stress mechanical properties. Conclusion The 3-D FEM of pelvic and acetabulum including muscle and ligament around the hip may show anatomy of pelvic and aeetabulum, in line with the characteristics of human body and close to the true. Mechanical loading of calculation re- sults on the basis of this model will be more reliable.

关 键 词：骨盆 肌肉 韧带 三维有限元 计算力学 

分 类 号：R322.7[医药卫生—人体解剖和组织胚胎学]