title: Charnley low-friction arthroplasty in patients 35 years of age or younger. Results at a minimum of 23 years.
abstract: We evaluated the outcome of 41 consecutive Charnley low-friction arthroplasties (LFAs) performed by a single surgeon in 28 patients aged ≤ 35 years at operation between 23 and 36 years previously. There were 20 women and eight men with a mean age of 32 years (23 to 35) at surgery. Two patients (three hips) were lost to follow-up at 12 and 17 years post-operatively, respectively, and one patient (one hip) died at 13 years post-operatively. These patients were excluded from the final evaluation. The survival rate of the acetabular components was 92.7% (95% confidence interval (CI) 88.7 to 96.7) at ten years, 67.1% (95% CI 59.75 to 74.45) at 20 years and 53.2% (95% CI 45.3 to 61.1) at 25 years. For the femoral component the survival was 95.1% (95% CI 91.8 to 98.5) at ten years, 77.1% (95% CI 73.9 to 80.3) at 20 years and 68.2% (95% CI 60.7 to 75.8) at 25 years. The results indicate that the Charnley LFA remains a reasonable choice in the treatment of young patients and can serve for comparison with newer techniques and implants.
authors.affiliation: KAT Hospital, 3rd Orthopaedic Department, University of Athens, 2 Nikis Street, Kifissia, Athens, Greece.
authors.forename: K
authors.initials: K
authors.lastname: Lampropoulou-Adamidou
authors.forename: G
authors.initials: G
authors.lastname: Georgiades
authors.forename: J
authors.initials: J
authors.lastname: Vlamis
authors.forename: G
authors.initials: G
authors.lastname: Hartofilakidis
mesh_terms: D000328:Adult; D000367:Age Factors; D019644:Arthroplasty, Replacement, Hip / Q000379:methods*; D015992:Body Mass Index; D005260:Female; D005500:Follow-Up Studies; D017276:Friction; D006618:Hip Dislocation, Congenital / Q000601:surgery*; D006622:Hip Prosthesis; D006801:Humans; D053208:Kaplan-Meier Estimate; D008297:Male; D011474:Prosthesis Design; D012086:Reoperation; D016896:Treatment Outcome; D055815:Young Adult
keywords: Charnley low-friction arthroplasty; Osteolysis; Polyethylene wear; Survivorship; Total hip replacement; Young patients