STEM FOR ARTIFICIAL HIP JOINT, AND ARTIFICIAL HIP JOINT PROVIDED WITH SAME

摘要

An artificial hip joint stem of the present invention includes a stem body divided into a stem proximal part, a stem distal part, and a stem intermediate part located between the stem proximal part and the stem distal part. The stem body includes a rough surface located at the stem proximal part and having a surface roughness (Ra) of 10-80 µm, a smooth satin surface located at the stem intermediate part and having a surface roughness (Ra) of 0.1-1.0 µm, and a shiny surface located at the stem distal part and having a surface roughness (Ra) of less than 0.1 µm. The present invention also provides an artificial hip joint including the artificial hip joint stem.