title: Long-term results of Charnley total hip replacement. Review of 92 patients at 15 to 20 years.
abstract: We made a prospective study of 241 Charnley total hip replacements performed between 1968 and 1974. In 1990, we reviewed 92 patients with 103 hips (96.3% of surviving hips) at a mean follow-up of 17.6 years (15 to 20.6) The clinical results were excellent, with Charnley scores of 4 or more for pain in 95% of the patients, for function in 73% and for movement in 93%. Of the whole series, 8.3% had been revised, and Kaplan-Meier survival analysis showed a probability of revision at 20 years of 10.7%. These results are similar to those from the few other series with extended follow-up, and make it difficult to justify the present widespread use of uncemented hip prostheses. It would seem that some aspects of the design of the first-generation Charnley stem were beneficial for long-term survival of the arthroplasty. We found no correlation between the clinical results and radiological loosening on the Harris scale.
authors.affiliation: Department of Orthopaedics, Odense University Hospital, Denmark.
authors.forename: L
authors.initials: L
authors.lastname: Neumann
authors.forename: K G
authors.initials: KG
authors.lastname: Freund
authors.forename: K H
authors.initials: KH
authors.lastname: Sørenson
mesh_terms: D000328:Adult; D000368:Aged; D001178:Arthroplasty / Q000379:methods; D002484:Cementation; D005260:Female; D006622:Hip Prosthesis; D006801:Humans; D008137:Longitudinal Studies; D008297:Male; D008875:Middle Aged; D011183:Postoperative Complications / Q000175:diagnosis; D011446:Prospective Studies; D011474:Prosthesis Design; D012086:Reoperation