Cementless metal-on-metal hip arthroplasty in patients less than 50 years of age: comparison with a matched control group using ceramic-on-polyethylene after a minimum 5-year follow-up.
Thirty-nine cementless hip arthroplasties using metal-on-metal articulation were consecutively implanted in 30 patients less than 50 years of age and compared with a matched control group (by age, diagnosis, Devane activity, and Harris hip scores) of cementless arthroplasties using ceramic-on-polyethylene articulation. The Harris hip score at follow-up (minimum 5 years) for the metal-on-metal was 94.9 (range, 74-100). After the same follow-up, the results of the ceramic-on-polyethylene were significantly worse: 9 osteolyses and 7 surgical revisions related to wear (none in the metal-on-metal). Five-year survival rates were 97% +/-2% for the ceramic-on-polyethylene and 100% for the metal-on-metal. The metal-on-metal may be recommended to prevent wear problems in younger and more active patients; however, a longer follow-up is required to confirm this encouraging data.
Migaud
Henri
H
Orthopaedic Department, Salengro Hospital, University Hospital of Lille, Lille, France.
Jobin
Alexandre
A
Chantelot
Christophe
C
Giraud
François
F
Laffargue
Philippe
P
Duquennoy
Antoine
A
D000328:Adult; D000367:Age Factors; D019644:Arthroplasty, Replacement, Hip; D002516:Ceramics; D003035:Cobalt / Q000097:blood; D005260:Female; D005500:Follow-Up Studies; D006622:Hip Prosthesis; D006801:Humans; D008297:Male; D008670:Metals; D008875:Middle Aged; D020959:Polyethylene; D011474:Prosthesis Design; D011475:Prosthesis Failure; D012086:Reoperation
D008670:Metals; D003035:Cobalt; D020959:Polyethylene