title: Wear comparison between a highly cross-linked polyethylene and conventional polyethylene against a zirconia femoral head: minimum 5-year follow-up.
abstract: Highly cross-linked polyethylene (HXLPE) was developed to reduce wear of articular bearing surface in total hip arthroplasty patients. Several studies have shown reduced wear of HXLPE compared with conventional polyethylene; however, these studies had used HXLPE in combination with a Co-Cr metal head. The purpose of this study was to compare the 5-year in vivo wear of HXLPE with that of conventional PE using a zirconia femoral head. Forty-five hips with a Trilogy HXLPE (Zimmer, Warsaw, Ind) were matched and compared with a control group of 20 conventional Trilogy PE hips. The 2-dimensional linear wear rate was significantly less in the HXLPE group between 1 and 5 years postoperation (P < .001). The results show that HXLPE reduces short-term polyethylene wear against not only a Co-Cr head but also a zirconia head.
authors.affiliation: Department of Orthopedics Surgery, Kanazawa Medical University, Kahokugun, Japan.
authors.forename: Kiyokazu
authors.initials: K
authors.lastname: Fukui
authors.forename: Ayumi
authors.initials: A
authors.lastname: Kaneuji
authors.forename: Tanzo
authors.initials: T
authors.lastname: Sugimori
authors.forename: Toru
authors.initials: T
authors.lastname: Ichiseki
authors.forename: Kenji
authors.initials: K
authors.lastname: Kitamura
authors.forename: Tadami
authors.initials: T
authors.lastname: Matsumoto
mesh_terms: D000328:Adult; D000368:Aged; D001172:Arthritis, Rheumatoid / Q000601:surgery; D019644:Arthroplasty, Replacement, Hip / Q000295:instrumentation*; D002858:Chromium Alloys; D005260:Female; D005271:Femur Head Necrosis / Q000601:surgery; D005500:Follow-Up Studies; D006622:Hip Prosthesis / Q000592:standards*; D006801:Humans; D008137:Longitudinal Studies; D008297:Male; D008875:Middle Aged; D015207:Osteoarthritis, Hip / Q000601:surgery*; D011095:Polyethylenes / Q000592:standards*; D011474:Prosthesis Design / Q000592:standards; D016896:Treatment Outcome; D015040:Zirconium / Q000592:standards*
chemical_list: D002858:Chromium Alloys; D011095:Polyethylenes; D015040:Zirconium; C028541:zirconium oxide