典型文献
Biomechanical Effects of Tibial Stems with Different Structures on Human Knee Joint after Total Knee Arthroplasty:A Finite Element Analysis
文献摘要：
Porous structure in orthopedic prosthesis may reduce micromotion and increase the service life of implants.The purposes of this study were to compare the influence of the tibial stems with solid and porous structures in Total Knee Arthroplasty(TKA)on knee joint and prostheses,and to improve the mechanical stability of the host bone by seeking favorable struc-ture for the tibial stem.The Finite Element(FE)models of TKA knee with four different structures in the middle segment of the tibial stem(i.e.,solid,cubic,truncated cubic,and octahedral structures)were constructed.The distributions of von Mises stress in the knee joint,tibial prosthesis and proximal tibia,and the compressive stresses of the tibial prosthesis and ultra-high-molecular-weight polyethylene for the four FE models were analyzed.The results showed that the tibial stem filled with the octahedral structure has the best mechanical performance among the above four types of tibial stems.It could effectively reduce the stress concentration and stress shielding effects,and provide an improved mechanical environment for knee joint after TKA.This study would shed some lights on the design and fabrication of porous implants targeted to biomedical applications.
文献关键词：
中图分类号：
作者姓名：
Meng Zhang;Kaiwen Zhang;He Gong
作者机构：
Department of Engineering Mechanics,Nanling Campus,Jilin University,Changchun 130025,China
文献出处：
引用格式：
[1]Meng Zhang;Kaiwen Zhang;He Gong-.Biomechanical Effects of Tibial Stems with Different Structures on Human Knee Joint after Total Knee Arthroplasty:A Finite Element Analysis)[J].仿生工程学报（英文版）,2022(01):197-208
A类：
Stems,micromotion
B类：
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AB值：
0.523781
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