title: Highly cross-linked polyethylene in total hip arthroplasty for osteonecrosis of the femoral head: a minimum 5-year follow-up study.
abstract: We evaluated 162 hips with osteonecrosis of the femoral head that had undergone THA using highly cross-linked polyethylene liner after a minimum follow-up of 5 years. Neither femoral nor acetabular components displayed radiographic evidence of mechanical loosening or osteolysis, and no components had been revised at the latest follow-up. The mean rate of linear liner wear was 0.038 mm/year. Univariate regression analysis did not demonstrate that age, gender, weight, activity level or cup inclination had any influence on penetration. While the long term effects of altered mechanical properties of highly cross-linked PE remain unknown, the clinical and radiographic results at a minimum of 5 years are promising for this high-risk population.
authors.affiliation: Department of Orthopedic Surgery, School of Medicine, Keimyung University, Daegu, Korea.
authors.forename: Byung-Woo
authors.initials: BW
authors.lastname: Min
authors.forename: Kyung-Jae
authors.initials: KJ
authors.lastname: Lee
authors.forename: Kwang-Soon
authors.initials: KS
authors.lastname: Song
authors.forename: Ki-Cheor
authors.initials: KC
authors.lastname: Bae
authors.forename: Chul-Hyun
authors.initials: CH
authors.lastname: Cho
mesh_terms: D000077:Acetabulum / Q000601:surgery*; D000328:Adult; D000368:Aged; D019644:Arthroplasty, Replacement, Hip; D001672:Biocompatible Materials; D005260:Female; D005271:Femur Head Necrosis / Q000601:surgery*; D005500:Follow-Up Studies; D006622:Hip Prosthesis; D006801:Humans; D008297:Male; D008875:Middle Aged; D020959:Polyethylene; D011474:Prosthesis Design; D055815:Young Adult
chemical_list: D001672:Biocompatible Materials; D020959:Polyethylene