title: Extensive osteolysis caused by polyethylene particle migration in an anatomical hydroxyapatite-coated hip prosthesis: 10 years' follow-up.
abstract: We report our 10-year follow-up results of 630 consecutive Anatomique Benoist Giraud I hip prostheses implanted between June 1990 and December 1995. At this time, 520 were satisfactory and 25 had been revised. Although the majority of patients remained asymptomatic at the end of follow-up, the real survivorship of the implant was less than 91% (33 patients who were in the waiting list for revision due to osteolysis at that time were revised by December 2007). On the other hand, radiographic outcomes were of concern: around 90% of patients showed progressive stress shielding and large granulomatous lesions in the proximal femur, and more than 82% of patients exhibited polyethylene wear in excess of 1 mm (mean=1.69 mm).
authors.affiliation: Orthopaedic Surgery and Traumatology Service, University Hospital Miguel Servet, Zaragoza, Spain.
authors.forename: Vicente
authors.initials: V
authors.lastname: Canales
authors.forename: Juan J
authors.initials: JJ
authors.lastname: Panisello
authors.forename: Antonio
authors.initials: A
authors.lastname: Herrera
authors.forename: Alejandro
authors.initials: A
authors.lastname: Sola
authors.forename: Jesús J
authors.initials: JJ
authors.lastname: Mateo
authors.forename: María J
authors.initials: MJ
authors.lastname: Caballero
mesh_terms: D020099:Coated Materials, Biocompatible; D017886:Durapatite; D005260:Female; D005500:Follow-Up Studies; D006621:Hip Joint / Q000000981:diagnostic imaging / Q000503:physiopathology / Q000601:surgery; D006622:Hip Prosthesis / Q000009:adverse effects*; D006801:Humans; D008137:Longitudinal Studies; D008297:Male; D008875:Middle Aged; D010014:Osteolysis / Q000453:epidemiology / Q000209:etiology*; D020959:Polyethylene; D015995:Prevalence; D011475:Prosthesis Failure / Q000009:adverse effects*; D011859:Radiography; D016059:Range of Motion, Articular / Q000502:physiology; D012086:Reoperation; D016896:Treatment Outcome
chemical_list: D020099:Coated Materials, Biocompatible; D020959:Polyethylene; D017886:Durapatite