实用医学杂志2017，Vol.33Issue(6)：898-901,4.DOI:10.3969/j.issn.1006-5725.2017.06.013
膝关节PS型固定与旋转平台假体对髌股关节应力的影响
Impact of mobile-bearing versus fixed-bearing platform prostheses of the knee joint on patellofemoral stress
摘要
Abstract
Objective To explore the feasibility of the reconstruction of three dimensional dynamic finite element model of the knee joint based on two-dimensional CT and MRI image data. To analyze the impact of mobile-bearing versus fixed-bearing platform prostheses of the knee joint on patellofemoral stress by the finite element method. Methods A three-dimensional digital model of the knee joint including bone,cartilage,meniscus, ligaments and tendons was reconstructed through the Mimics software. The best clinical bone cutting angle and implant placement position measurement were simulated according to the standard of total knee replacement by computers in a three-dimensionalknee model. A three-dimensional dynamic finite element model of mobile-bearing and fixed-bearing total knee arthroplasties was reconstructed finally. The data was analyzed by the SPSS 19.0 software. The test standard level α was 0.05. Results There was no significant difference in the peak value of patellofemoral stresses between fixed-bearing and mobile-bearing platform posterior cruciate-substituting prostheses at 0° ,30° ,60° ,90° ,or 120° of knee flexion(P>0.05). Conclusion There is no significant difference in the peak value of patellofemoral stresses between fixed-bearing and mobile-bearing platform prostheses.关键词
全膝关节置换/膝关节假体/数字化模型/髌股关节应力/有限元分析Key words
Total knee arthroplasty/Knee prosthesis/Digital model/Patellofemoral stresses/Finite element analysis引用本文复制引用
姬林松,李彦林,黄赞,王国梁..膝关节PS型固定与旋转平台假体对髌股关节应力的影响[J].实用医学杂志,2017,33(6):898-901,4.基金项目
云南省创新团队项目(编号:2014HC018) （编号:2014HC018）
云南省国际合作项目(编号:2013IA004) （编号:2013IA004）
云南省医学学科带头人培养基金(编号:D-201207) （编号:D-201207）
