No superior performance of hydroxyapatite-coated acetabular cups over porous-coated cups.

ABSTRACT:

Background and purpose

Hydroxyapatite (HA) coating is believed to improve bone-implant ingrowth and long-term survival of prostheses. Recent studies, however, have challenged this view. Furthermore, HA particles may produce third-body wear and initiate aseptic loosening of implants. We report the performance of HA- and porous-coated acetabular cups in a prospective randomized trial.

Methods

This was an 8-year follow-up study of our previously published prospective randomized study to compare clinical outcomes, survival, periprosthetic bone mineral density, migration, and wear rates of HA- and porous-coated acetabular cups. Dual X-ray absorptiometry (DXA) and Ein Bild Roentgen Analyse (EBRA) measurements were used. 100 patients who underwent unilateral cementless total hip ar

SUBMITTER: Valancius K 

PROVIDER: S-EPMC3851667 | biostudies-literature | 2013 Dec

REPOSITORIES: biostudies-literature