Clinical results of the wear performance of cross-linked polyethylene in total hip arthroplasty: prospective randomized trial.
To investigate the clinical results of cross-linked polyethylene (CLPE) and to compare the CLPE wear against zirconia and stainless steel heads, we studied the radiographic wear after a minimum 3-year follow-up in total hip arthroplasty (THA). Ninety-four hips were randomly implanted with a 22.225-mm head cemented THA-the group of non-CLPE against zirconia and CLPE against 2 different zirconias and stainless steel. The linear wear rate was significantly lower in the group of CLPE against zirconia (0.067, 0.059 mm/y) and against stainless steel (0.068 mm/y) compared with non-CLPE against zirconia (0.170 mm/y). In the short-term results, the wear performance of CLPE against zirconia was superior to that of non-CLPE; however, it did not show a better wear rate than CLPE against stainless steel. Furthermore, long-term investigations will be necessary for understanding CLPE wear in vivo.
Ise
Kentaro
K
Department of Orthopedic Surgery, Kyoto University, Sakyo-ku, Kyoto, Japan.
Kawanabe
Keiichi
K
Tamura
Jiro
J
Akiyama
Haruhiko
H
Goto
Koji
K
Nakamura
Takashi
T
D000368:Aged; D019644:Arthroplasty, Replacement, Hip; D001672:Biocompatible Materials; D005260:Female; D005500:Follow-Up Studies; D006622:Hip Prosthesis; D006801:Humans; D007592:Joint Diseases / Q000601:surgery*; D008297:Male; D008875:Middle Aged; D020959:Polyethylene; D011446:Prospective Studies; D011475:Prosthesis Failure; D016896:Treatment Outcome
D001672:Biocompatible Materials; D020959:Polyethylene