Radiation cross-linking in ultra-high molecular weight polyethylene for orthopaedic applications

[摘要] The motivation for radiation cross-linking of ultra-high molecular weight polyethylene (UHMWPE) is to increase its wear resistance to be used as bearing surfaces for total joint arthroplasty. However, radiation also leaves behind long-lived residual free radicals in this polymer, the reactions of which can detrimentally affect mechanical properties. In this review, we focus on the radiation cross-linking and oxidative stability of first and second generation highly cross-linked UHMWPEs developed in our laboratory. (C) 2007 Elsevier B.V. All rights reserved.

[发布日期] 2007-12-01

[效力级别]  Proceedings Paper

[关键词] radiation;cross-linking;antioxidant;joint arthroplasty;wear resistance