| 摘要 |
Hip joint prosthesis for replacing diseased or defective joints including a femoral stem, vacuum cast of cobalt-chromium-molybdenum and hot isostatically pressed (HIP'd) both before and after porous coating to provide an additional 50% greater strength in high cycle fatigue loading than all comparable porous coated devices of prior art, with optimal porous coating parameters scientifically and clinically determined for 75% greater fixation than all comparable devices of prior art, anatomically shaped and easily constructed in right and left configurations and a range of sizes, a femoral head which attaches to the stem intraoperatively, and an acetabular component consisting of a polymer bearing-type insert mechanically fixed inside a metal shell, the bearing surface articulating with the femoral head.
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