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Oxidative degradation in highly cross-linked and conventional polyethylene after 2 years of real-time shelf aging ☆

Paper ID Volume ID Publish Year Pages File Format Full-Text
11621 749 2006 10 PDF Available
Title
Oxidative degradation in highly cross-linked and conventional polyethylene after 2 years of real-time shelf aging ☆
Abstract

Previous studies have reported oxidative degradation of conventional polyethylene (PE) components during shelf aging, following radiation. However, no studies have yet reported data concerning the effect of real-time shelf aging in the manufacturer's packaging on the oxidative degradation of commercially available highly cross-linking PE components. The null hypothesis tested was that in either highly cross-linked or conventional PE acetabular components there would be no significant difference in the amount of oxidative degradation between time zero PE liners and PE liners that had been real-time shelf aged for 2 years in their respective packaging. The results of the study indicated that after 2 years of real-time shelf aging, negligible oxidative degradation occurred with minimal changes in oxidation index, density, and percent crystallinity in commercially available highly cross-linked and conventional PE acetabular liners. These data suggested that oxidative degradation was not a clinical issue in the highly cross-linked and conventional PE components examined after 2 years of real-time shelf aging. It is likely that current manufacturing and packaging technologies have limited the previous clinical concerns related to oxidative degradation during shelf aging of highly cross-linked and conventional PE components.

Keywords
Polyethylene; Oxidation; Degradation; Hip replacements prosthesis; Gamma irradiation; Electron beam
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Oxidative degradation in highly cross-linked and conventional polyethylene after 2 years of real-time shelf aging ☆
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Publisher
Database: Elsevier - ScienceDirect
Journal: Biomaterials - Volume 27, Issue 10, April 2006, Pages 2275–2284
Authors
, , , , , ,
Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us