Currently, there are still developing, the material is artificial knee ever since. Design of knee joint in various ways, both fixed and mobile style knee to reduce corrosion problems of secondary materials [1], joint study of secondary materials corrosion from knee replacement surgery recipient material knee found that the lifetime of the knee joint that is short and when corrosion.And then there is no symmetry in the normal axis. So, until now, it has also developed knee joint is always. [2] present a simulation of the knee and used to study the corrosion of the secondary material knee knee joint of both fixed and mobile, [3] to load a load simulation test cycle to provide a corrosion materials secondary virtual knee joint, but it can be difficult and take a long time, [4] has offered to put the load angle, instead of inserting the load the load cycle to study the area where contact occurs, the pressure to compare the effect of corrosion, the secondary material, artificial knee.
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