基于MRI的有限元建模和分析在髋臼周围截骨术中的应用

周甜丽,张典,吴继志,贾慧惠,常严,盛茂,杨晓冬

Application of MRI-based Finite Element Modeling and Analysis in Periacetabular Osteotomy

ZHOU Tianli,ZHANG Dian,WU Jizhi,JIA Huihui,CHANG Yan,SHENG Mao,YANG Xiaodong

表3 髋关节模型的网格收敛

Table 3 Mesh convergence for the hip model

网格尺寸/mm 网格数量 峰值接触压力/MPa 变化率/% 接触面积/mm2 变化率/% 1 52564 11.783 - 227.836 - 0.7 113422 12.446 5.627 219.494 3.661 0.5 257067 12.484 0.305 216.635 1.303