This prospective study was performed to examine the results of total hip
arthroplasty with a tapered uncemented femoral component with and without
hydroxyapatite coating in a matched-pair group of patients. Since our original
publication in 1996, no femoral component was revised in either group. After a
mean clinical and radiographic follow-up of 9.8 years, all femoral components
were stable, with no evidence of progressive radiolucency or osteolysis. Ten
acetabular components were revised because of aseptic loosening and wear. Our
study demonstrated no clinical or radiographic advantage, during the first
decade after implantation, to the use of hydroxyapatite on this design of
femoral component in primary total hip arthroplasty.
Level of Evidence: Therapeutic study, Level II-1
(prospective cohort study). See Instructions to Authors for a complete
description of levels of evidence.