CAJ | 학술논문

背景:建立逼真的有限元模型是对脊柱进行有限元力学分析的重要基础,关于骨质疏松有限元模型的报道尚少.目的:建立脊柱腰段各主要结构及骨质疏松腰椎的有限元数字模型,为正常脊柱腰段及骨质疏松患者腰椎的有限元力学分析打下基础.方法:对1名健康男性志愿者行脊柱腰段的螺旋 CT 扫描,将所得图像先在 Mimics 中进行分隔和重建,在 Geomagic 中进行优化,在 Ansys 中赋材质及网格划分,建立三维有限元数字模型.结果与结论:建立了包括全部腰椎、椎间盘及主要韧带的正常腰椎及骨质疏松腰椎三维有限元数字模型.该模型外形逼真,几何相似性好,可以随意旋转,方便从多角度观察、采集三维信息,各主要结构材料属性接近实际,适合进行生物力学研究.提示利用 CT 数据及 mimics、geomagic、Ansys 软件可以建立脊柱腰段正常及骨质疏松有限元数字模型.
배경:건립핍진적유한원모형시대척주진행유한원역학분석적중요기출,관우골질소송유한원모형적보도상소.목적:건립척주요단각주요결구급골질소송요추적유한원수자모형,위정상척주요단급골질소송환자요추적유한원역학분석타하기출.방법:대1명건강남성지원자행척주요단적라선 CT 소묘,장소득도상선재 Mimics 중진행분격화중건,재 Geomagic 중진행우화,재 Ansys 중부재질급망격화분,건립삼유유한원수자모형.결과여결론:건립료포괄전부요추、추간반급주요인대적정상요추급골질소송요추삼유유한원수자모형.해모형외형핍진,궤하상사성호,가이수의선전,방편종다각도관찰、채집삼유신식,각주요결구재료속성접근실제,괄합진행생물역학연구.제시이용 CT 수거급 mimics、geomagic、Ansys 연건가이건립척주요단정상급골질소송유한원수자모형.
@@@@BACKGROUND: Establishment of a realistic finite element model is the important basis for the finite element mechanics analysis of the spine. The reports on the finite element model of osteoporosis are less. OBJECTIVE: To establish the main composition of the normal lumbar spine and osteoporosis lumbar vertebrae finite element digital model in order to lay the foundation for the finite element analysis of the normal lumbar spine and lumbar vertebrae of osteoporosis patients. METHODS: One healthy male volunteer received the spiral CT scan on the lumbar spine, then the pictures were separated and reconstructed in Mimics, optimized in Geomagic, assigned material and meshed in Ansys, and final y the three-dimensional finite element digital model was established. RESULTS AND CONCLUSION: The three-dimensional finite element digital models were established, including the lumbar spine, the intervertebral disc and the main ligament of normal and osteoporotic lumbar spine. This model was living with appearance, perfect with similarity. It could revolve arbitrary, so that the researchers could observe and col ect the three-dimensional information from multiple perspectives, and the main structural and material properties were closed to the actual properties, which is suitable for biomechanical study. The CT data which is software (mimics, were geomagic and Ansys) can used to establish the normal lumbar spine and osteoporosis finite element digital models.