title: Furlong hydroxyapatite-coated hip prosthesis vs the Charnley cemented hip prosthesis.
abstract: We report the results of a prospective trial comparing uncemented Furlong hydroxyapatite-coated total hip arthroplasty and cemented Charnley total hip arthroplasty. One hundred ninety-one patients were allocated into 2 groups depending on their year of birth. One group received a Furlong hydroxyapatite-coated total hip arthroplasty and the other group received a cemented Charnley total hip arthroplasty. At a mean follow-up of 14 years (12-16 years), Harris hip scores showed no difference between the 2 groups. The longitudinal multilevel model analysis shows that the mean slope of the change in the Harris hip score was -0.02 for the Furlong group and -0.05 for the Charnley group; the difference is 0.03 (P = .002). The survival analysis using Kaplan-Meier regression analysis (the log-rank test lambda(2)(1) = 0.031, P = .58) does not show a significant difference between the 2 groups. Overall survival was 93.6% in the Furlong group and 94.8% in the Charnley group.
authors.affiliation: Trauma and Orthopaedics, Scarborough General Hospital, Scarborough, West Yorkshire, United Kingdom.
authors.forename: Prakash
authors.initials: P
authors.lastname: Chandran
authors.forename: Mohamed
authors.initials: M
authors.lastname: Azzabi
authors.forename: Jeremy
authors.initials: J
authors.lastname: Miles
authors.forename: Mark
authors.initials: M
authors.lastname: Andrews
authors.forename: John
authors.initials: J
authors.lastname: Bradley
mesh_terms: D000368:Aged; D019644:Arthroplasty, Replacement, Hip / Q000009:adverse effects; D002484:Cementation; D020099:Coated Materials, Biocompatible; D017886:Durapatite; D005260:Female; D005500:Follow-Up Studies; D006622:Hip Prosthesis; D006801:Humans; D008297:Male; D008875:Middle Aged; D011183:Postoperative Complications; D011475:Prosthesis Failure; D012086:Reoperation; D016019:Survival Analysis
chemical_list: D020099:Coated Materials, Biocompatible; D017886:Durapatite