THE FREMORAL STEM FOR TOTAL HIP ARTHROPATHY

摘要

The present invention relates to the femoral stems for an artificial hip joint,More specifically,It is physically inserted during joint movement to be related to interference and remove with neck area contact by the process of the femoral stem for an artificial hip joint to maximize range of motion,When maintaining the maximum and femoral stem in femoral stem,It is near 40 to 50 inclined cutting of outer diameter towards internal,Cutting surface is the instantaneous centre and the identical outer diameter contact of formation of symmetrical cutting and internal diameter,Processing is more than that external outer diameter is realized by processing to form shorts between the inside in cutting face along comprehensive internal diameter,Because of range of motion of many problems due to causing the buttocks to existing small interference thus,Such as,The abrasion or rupture of ceramic tip inside polyethylene cup,The dislocation of artificial joint,Promote it that will have the effect of reducing the decomposition of artificial joint etc..