Reduction of wear volume from ultrahigh molecular weight polyethylene knee components by the addition of vitamin E.
Wear performance and debris-size distribution of vitamin E (DL-alpha tocopherol, VE)-added ultrahigh molecular weight polyethylene (UHMWPE) was evaluated using a knee-simulator test. VE was mixed with GUR 1050 UHMWPE powder at 0.3 wt%, and the tibial components of the knee joint were made by direct compression molding. The VE-added UHMWPE showed consistently lower wear volume throughout the test.
Teramura
Satoshi
S
Graduate School of Engineering, Kyoto University, Yoshida-Honmachi, Sakyo-ku, Kyoto, Kyoto 606-8501, Japan.
Sakoda
Hideyuki
H
Terao
Tomohiro
T
Endo
Miguel M
MM
Fujiwara
Kunihiko
K
Tomita
Naohide
N
D019645:Arthroplasty, Replacement, Knee / Q000295:instrumentation; D019544:Equipment Failure Analysis; D006801:Humans; D007720:Knee Prosthesis; D008422:Materials Testing; D010316:Particle Size; D011095:Polyethylenes; D014810:Vitamin E
D011095:Polyethylenes; C111601:ultra-high molecular weight polyethylene; D014810:Vitamin E