title: A universal snap-fit endoprosthesis for the treatment of subcapital fractures of the femur: a preliminary report.
abstract: A new endoprosthesis for the treatment of subcapital fractures is described. It is hemispherical with a high density polyethylene (HDP) core which is snap-fitted onto a Charnley-type femoral prosthesis. The aim is to prevent acetabular erosion by its virtual lack of movement of the cartilage-metal interface. If this should occur then conversion to a total hip is readily performed without removing the femoral stem. So far 14 have been inserted without any complications. In fact, they are easily mobilized with very little pain.
mesh_terms: D000368:Aged; D005260:Female; D005265:Femoral Neck Fractures / Q000000981:diagnostic imaging / Q000601:surgery*; D006801:Humans; D008297:Male; D008875:Middle Aged; D009068:Movement; D011095:Polyethylenes; D019736:Prostheses and Implants / Q000009:adverse effects / Q000379:methods*; D011474:Prosthesis Design; D011859:Radiography
chemical_list: D011095:Polyethylenes