Surface Texturing of Vitamin E Blended UHMWPE for Reduction of Wear
نویسندگان
چکیده
منابع مشابه
Vitamin E-blended UHMWPE with a Gradient Vitamin E Concentration
INTRODUCTION: Vitamin E-stabilized, radiation cross-linked ultra-high molecular weight polyethylene (UHMWPE) is used in total joint arthroplasty as a bearing surface with low wear and improved mechanical properties compared to irradiated and melted UHMWPE [1]. Vitamin E stabilizes the residual free radicals trapped in the material after irradiation and ensures oxidative resistance, thus resulti...
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Introduction: Ultra high molecular weight polyethylene (UHMWPE) is a common bearing component in Total Knee Replacement (TKR) implants, and its susceptibility to wear continues to be the long-term limiting factor in the life of these implants. Novel material modifications have been introduced to reduce UHMWPE wear rates and thus improve the life of TKRs. Radiation and crosslinking of UHMWPE hav...
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Aseptic loosening mediated by wear particle-induced osteolysis (PIO) remains the major cause of implant loosening in endoprosthetic surgery. The development of new vitamin E (α-tocopherol)-blended ultra-high molecular weight polyethylene (VE-UHMWPE) with increased oxidation resistance and improved mechanical properties has raised hopes. Furthermore, regenerative approaches may be opened, as vit...
متن کامل•A Low Wear, High Fatigue Strength UHMWPE with a Gradient Vitamin E Concentration
INTRODUCTION: Radiation cross-linking is used to decrease wear in ultra high molecular weight polyethylene (UHMWPE) as a total joint arthroplasty bearing surface [1,2] but it also reduces its fatigue strength [1]. Current research focus is to improve the fatigue strength of wear and oxidation resistant cross-linked UHMWPEs in order to improve their use in high stress applications and young and ...
متن کاملWear Reduction in Total Ankle Arthroplasty Using Highly Crosslinked UHMWPE
Introduction: Bearing couples within total ankle arthroplasty (TAA) typically utilize cobalt chromium alloys articulating on ultrahigh molecular weight polyethylene (UHMWPE). Articulation of these surfaces during in vivo loading can generate UHMWPE wear particles, which may then result in osteolysis and component loosening [1]. Osteolysis has been observed following TAA in 15-22% of patient pop...
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ژورنال
عنوان ژورنال: Acta Physica Polonica A
سال: 2014
ISSN: 0587-4246,1898-794X
DOI: 10.12693/aphyspola.125.481