title: Long-term results of Charnley low-friction arthroplasty in young patients.
abstract: We report the long-term outcome of 218 Charnley low-friction arthroplasties in 141 patients who were 40 years old or younger at the time of surgery. The minimum follow-up was ten years with a mean of 16 years. The probability of the femoral component surviving 20 years was 86% and of the acetabular component, 84%. The chance that both components would survive for this period was 75%. The pathological diagnosis significantly influenced implant survival. In rheumatoid patients the probability of both components surviving at 20 years was 96% compared with 51% in patients with osteoarthritis. Clinical assessment of 103 patients (166 hips) in whom the arthroplasty was still functioning showed that 94% of hips had minimal pain or none. We conclude that in young patients cemented total hip replacement is a good procedure for those with rheumatoid arthritis but that the results are much less reliable in those with osteoarthritis.
authors.affiliation: Wrightington Hospital, Wigan, England, UK.
authors.forename: A B
authors.initials: AB
authors.lastname: Joshi
authors.forename: M L
authors.initials: ML
authors.lastname: Porter
authors.forename: I A
authors.initials: IA
authors.lastname: Trail
authors.forename: L P
authors.initials: LP
authors.lastname: Hunt
authors.forename: J C
authors.initials: JC
authors.lastname: Murphy
authors.forename: K
authors.initials: K
authors.lastname: Hardinge
mesh_terms: D000293:Adolescent; D000328:Adult; D000367:Age Factors; D004739:England / Q000453:epidemiology; D005260:Female; D005500:Follow-Up Studies; D006621:Hip Joint / Q000000981:diagnostic imaging; D006622:Hip Prosthesis / Q000706:statistics & numerical data; D006801:Humans; D008297:Male; D011183:Postoperative Complications / Q000453:epidemiology; D011475:Prosthesis Failure; D011859:Radiography; D012086:Reoperation / Q000706:statistics & numerical data; D012307:Risk Factors; D012737:Sex Factors; D016019:Survival Analysis