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Reduction of wear volume from ultrahigh molecular weight polyethylene knee components by the addition of vitamin E

✍ Scribed by Satoshi Teramura; Hideyuki Sakoda; Tomohiro Terao; Miguel M. Endo; Kunihiko Fujiwara; Naohide Tomita

Book ID
102397533
Publisher
Elsevier Science
Year
2008
Tongue
English
Weight
160 KB
Volume
26
Category
Article
ISSN
0736-0266

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✦ Synopsis

Abstract

Wear performance and debris‐size distribution of vitamin E (DL‐α 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. © 2007 Orthopaedic Research Society. Published by Wiley Periodicals, Inc. J Orthop Res 26:460–464, 2008

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Prevention of fatigue cracks in ultrahigh molecular weight polyethylene joint components by the addition of vitamin E
✍ Tomita, N. ;Kitakura, T. ;Onmori, N. ;Ikada, Y. ;Aoyama, E. 📂 Article 📅 1999 🏛 John Wiley and Sons 🌐 English ⚖ 125 KB 👁 2 views

Flaking-type wear, so-called delamination, is often observed in polyethylene joint components. This is thought to occur partly due to crack formation and propagation at grain boundaries. This study examined the effect of vitamin E on the crack formation and/or propagation in UHMWPE by using 2-dimens