Total hip arthroplasty for primary osteoarthrosis in younger patients in the Finnish arthroplasty register

Modern uncemented stems seem to have better resistance to aseptic loosening than cemented stems in younger patients, and when all revisions are taken into account, the survival of modernuncemented cups is no better than that of all-poly cemented cups.

Abstract

Modern uncemented stems seem to have better resistance to aseptic loosening than cemented stems in younger patients. Thus, for younger patients, uncemented proximally circumferentially porous- and HA-coated stems are the implants of choice. Press-fit porous- and HA-coated uncemented cups may have better endurance against aseptic loosening than cemented cups in younger patients. However, when all revisions (including exchange of liner) are taken into account, the survival of modern uncemented cups is no better than that of all-poly cemented cups.