摘要
目的建立人体全骨盆的三维有限元模型,提供骨盆生物力学研究的数学模型。方法获取正常成年男性全骨盆包括相邻自第3腰椎、股骨上端1/3处的 CT 扫描图像,运用 ANSYS 有限元分析系统,采用直接从原始图片生成单元和节点的方法构建人体全骨盆的三维有限元模型。结果建立了正常人体全骨盆并包含第3腰椎和股骨上1/3段的三维有限元模型,模型由721 820单元,207 248节点构成。结论建立的人体全骨盆三维有限元模型较客观地反映人体骨盆的解剖结构和力学特性,可作为骨盆生物力学研究的工具。
Objective To develop a three-dimensional finite element model of normal total adult human pelvis and to establish a platform for biomechanical research of human pelvis. Methods 186 series of traverse CT images of the pelvis, from the third lumbar vertebra （L3） to the upper third of femur, obtained with spiral CT scanning on a healthy man, aged 42, without diseases of lumbar vertebrae and pelvis, were processed. A three-dimensional finite element model of pelvis was constructed directly by producing the units and nodes with the pixels of the original CT films, using ANSYS finite analytical system. Result A threedimensional finite element model of normal human pelvis was constructed including lumbar and proximal femur, which could be divided into 207 248 nodes and 721 820 units. Condusion The established three- dimensional finite element model of normal adult is valid and reasonable, and can be used for biomechanical analysis.
出处
《中华医学杂志》
CAS
CSCD
北大核心
2007年第47期3346-3348,共3页
National Medical Journal of China
基金
国家自然科学基金(30571895)
上海市科委科技发展基金(044119739)
关键词
骨盆
生物力学
有限元模型
Pelvis
Biomechanics
Finite element model
