CAJ | 학술논문

背景:通常的力学实验手法基本上无法直接应用于人体且模型间可比性低,对人体的力学行为进行有限元数值模拟就成为深化对人体认识的一种有效手段.目的:建立骨质疏松股骨三维有限元模型.方法:根据国人股骨平均参数,选择重度骨质疏松老年男性患者1例,年龄86岁,排除髋关节疾患.通过螺旋CT扫描获得骨质疏松股骨图像数据,将图像数据导入图像处理软件Mimics 11.1进行图像处理,生成股骨骨皮质内、外表面的轮廓曲线;再将轮廓曲线数据导入建模软件Unigraphic NX4.0进行实体建模,得到具有骨皮质、骨松质、骨髓腔的股骨三维模型;将三维模型数据导入有限元分析软件Ansys11.0进行赋值、网格划分、定义接触等操作建立骨质疏松股骨三维有限元模型.结果与结论:建立了骨质疏松股骨三维有限元模型,为骨质疏松股骨限元模型的建立提供了切实可靠的方法,为研究骨质疏松股骨骨折的固定方法、关节置换等创造了条件.
배경:통상적역학실험수법기본상무법직접응용우인체차모형간가비성저,대인체적역학행위진행유한원수치모의취성위심화대인체인식적일충유효수단.목적:건립골질소송고골삼유유한원모형.방법:근거국인고골평균삼수,선택중도골질소송노년남성환자1례,년령86세,배제관관절질환.통과라선CT소묘획득골질소송고골도상수거,장도상수거도입도상처리연건Mimics 11.1진행도상처리,생성고골골피질내、외표면적륜곽곡선;재장륜곽곡선수거도입건모연건Unigraphic NX4.0진행실체건모,득도구유골피질、골송질、골수강적고골삼유모형;장삼유모형수거도입유한원분석연건Ansys11.0진행부치、망격화분、정의접촉등조작건립골질소송고골삼유유한원모형.결과여결론:건립료골질소송고골삼유유한원모형,위골질소송고골한원모형적건립제공료절실가고적방법,위연구골질소송고골골절적고정방법、관절치환등창조료조건.
BACKGROUND:Usual mechanics experiment approach cannot be applied directly to human body and the inter-comparability of models is low.Therefore finite element numerical simulation to mechanical behavior of human body has become an effective method for better understanding of the human body.OBJECTIVE:To establish a three-dimensional finite element model of femoral osteoporosis.METHODS:According to the average Chinese femur parameters,1 male patient with severe osteoporosis,aged 86 years,with no hip joint diseases,was selected.The data of femoral osteoporosis was obtained by means of spiral CT scanning.The graphical data were processed by the Mimics 11.1 (a graph processing software),and the outline curve data of femoral bone cortex inside and outside surface were obtained.The curve data were imported into the Unigraphic NX4.0 for solid modeling.The femur three-dimensional model composed of the cortical bone,cancellous bone and medullary canal was obtained.The model data were imported into the Ansys 11.0 for operations such as assigning,meshing,and contact interactions to establish three-dimensional finite element model of osteoporotic femur.RESULTS AND CONCLUSION:Three-dimensional finite element model of femur of osteoporosis was successfully established,which provides a reliable method for the construction of finite element model of femoral osteoporosis,and creates conditions for investigating femoral osteoporosis fracture fixation method and joint replacement.