title: Hydroxyapatite-coated hip prostheses: difficulties with revision in 4 cases.
abstract: The introduction of hydroxyapatite ceramic (HAC) coating on hip implants in 1985 (Furlong and Osborn 1991) was hailed as a major advancement for fixation of uncemented protheses. A problem that is now becoming evident is the extraction of these securely fixed prostheses for purposes of revision. We report on 4 patients who have had HAC-coated protheses implanted (2 as revision procedures and 2 at primary hip replacement) who had either continuing pain or a proven infection, so that it became necessary to carry out a revision hip arthroplasty. The prostheses were well-fixed and difficult to remove. A transfemoral, longitudinal osteotomy was used in 3 cases.
authors.affiliation: Department of Orthopedic and Trauma Surgery, Rotherham General Hospitals (NHS) Trust, U.K.
authors.forename: M S
authors.initials: MS
authors.lastname: Bhamra
authors.forename: G S
authors.initials: GS
authors.lastname: Rao
authors.forename: M J
authors.initials: MJ
authors.lastname: Robson
mesh_terms: D000368:Aged; D005260:Female; D006622:Hip Prosthesis / Q000379:methods; D006801:Humans; D006882:Hydroxyapatites / Q000627:therapeutic use*; D008297:Male; D008875:Middle Aged; D010027:Osteotomy; D012086:Reoperation
chemical_list: D006882:Hydroxyapatites