fulltext.study @t Gmail

The performance of gamma- and EtO-sterilised UHWMPE acetabular cups tested under severe simulator conditions. Part 1: role of the third-body wear process

Paper ID Volume ID Publish Year Pages File Format Full-Text
13596 882 2002 8 PDF Available
Title
The performance of gamma- and EtO-sterilised UHWMPE acetabular cups tested under severe simulator conditions. Part 1: role of the third-body wear process
Abstract

Due to its excellent combination of properties, ultra-high-molecular-weight-polyethylene has been used for the last 30 years in the replacement of damaged articulating cartilage for total joint replacement surgery. However, in some cases, wear, failure and delamination have been observed.Polyethylene performance may be affected by oxidation during consolidation of the resin, sterilisation of the finished specimens and post-irradiation storage. In order to evaluate the influence of the sterilisation method (gamma-irradiation and ethylene oxide(EtO)-treatment) and third-body particles on the ultra-high-molecular-weight-polyethylene wear behaviour, gamma- and EtO-sterilised ultra-high-molecular-weight-polyethylene acetabular cups were tested against CoCrMo femoral heads in a hip joint simulator run for 2.5 million cycles in bovine calf serum in the presence of third-body PMMA particles. Weight loss measurements revealed that the gamma-sterilised acetabular cups exhibited a significantly lower wear rate than those EtO-sterilised. Moreover, significant differences were found for each type of sterilisation between the gravimetric wear trends obtained until 2.5 million cycles in the presence and in the absence of PMMA particles.

Keywords
Morphology; Debris; Sterilisation; Third-body wear process; SEM analysis
First Page Preview
The performance of gamma- and EtO-sterilised UHWMPE acetabular cups tested under severe simulator conditions. Part 1: role of the third-body wear process
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
Publisher
Database: Elsevier - ScienceDirect
Journal: Biomaterials - Volume 23, Issue 24, December 2002, Pages 4839–4846
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