title: No differences found in bearing related hip survivorship at 10-12 years follow-up between patients with ceramic on highly cross-linked polyethylene bearings compared to patients with ceramic on ceramic bearings.
abstract: At a minimum follow-up of ten years we compared clinical and radiographic findings and survivorship in a cohort of 412 patients (447 hips) who received alumina on alumina CoC bearings to findings from a cohort of 216 patients (228 hips) with alumina on highly cross-linked polyethylene (HXLPE) bearings. All patients were operated for osteoarthritis. With bearing-related complications as endpoint, analysis showed no significant difference in survivorship between cohorts (99.8% for the CoC vs. 99.4% for HXLPE). In addition, there were no significant differences in clinical and radiographic findings between cohorts. We concluded that alumina on HXLPE bearings are a reasonable lower cost alternative to ceramic on ceramic bearing couples.
authors.affiliation: Orthopaedic Research and Imaging Center in Arthroplasty, Clinique Médico-Chirurgicale, Bruay-Labuissière, France.
authors.forename: Jean-Alain
authors.initials: JA
authors.lastname: Epinette
authors.affiliation: Homer Stryker Center for Orthopaedic Education and Research, Mahwah, New Jersey; Department of Biomechanics, University of Bath, Bath, UK.
authors.forename: Michael T
authors.initials: MT
authors.lastname: Manley
mesh_terms: D000328:Adult; D000368:Aged; D000537:Aluminum Oxide; D019644:Arthroplasty, Replacement, Hip / Q000379:methods*; D002516:Ceramics / Q000737:chemistry*; D015331:Cohort Studies; D005260:Female; D005500:Follow-Up Studies; D006622:Hip Prosthesis; D006801:Humans; D008297:Male; D008875:Middle Aged; D010003:Osteoarthritis / Q000601:surgery*; D020959:Polyethylene / Q000737:chemistry*; D011474:Prosthesis Design; D015996:Survival Rate
chemical_list: D020959:Polyethylene; D000537:Aluminum Oxide
keywords: 10 year follow-up; ceramic on ceramic; highly crosslinked polyethylene; hip wear; survivorship