title: Tapered hydroxyapatite-coated press-fit stems: any added value?
abstract: This study compares the efficacy of hydroxyapatite (HA)-coated press-fit stems versus porous coated press-fit stems with a minimum 2-year follow up. Of the 1152 patients in the study, 69 had an HA-coated grit blasted cemented stem inserted (6%), whereas 1083 (94%) had a porous coated stem inserted. A detailed clinical and radiographic analysis demonstrated that there was no clinical difference at an average 4-year follow up. Similarly, there was no radiographic difference when the HA group was compared with the porous coated group. Thus, there is no need for HA coating on a tapered titanium stem in primary total hip arthroplasty in patients with osteoarthritis.
authors.affiliation: Department of Orthopaedic Surgery, London Health Science Centre, University Hospital, London, ON, Canada.
authors.forename: Cecil H
authors.initials: CH
authors.lastname: Rorabeck
mesh_terms: D019644:Arthroplasty, Replacement, Hip / Q000295:instrumentation*; D020099:Coated Materials, Biocompatible; D005500:Follow-Up Studies; D006801:Humans; D010149:Postoperative Pain / Q000453:epidemiology; D016062:Porosity; D011474:Prosthesis Design; D016059:Range of Motion, Articular; D013997:Time Factors
chemical_list: D020099:Coated Materials, Biocompatible