SEDL / STP / STP1445-EB / STP11920S

Retrieval Analysis of Cross-linked Acetabular Bearings

Collier, JP
Professor, Research Engineer, and Research Associate, Dartmouth Biomedical Engineering Center, Thayer School of Engineering, Dartmouth College, Hanover,NH

Mayor, MB
Attending Orthopaedist DHMC, Professor of Surgery in Orthopaedics DMS, Dartmouth Hitchcock Medical Center, Lebanon,NH

Currier, BH
Professor, Research Engineer, and Research Associate, Dartmouth Biomedical Engineering Center, Thayer School of Engineering, Dartmouth College, Hanover,NH

Wittmann, MW
Professor, Research Engineer, and Research Associate, Dartmouth Biomedical Engineering Center, Thayer School of Engineering, Dartmouth College, Hanover,NH

Pages: 9    Published: Jan 2004

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Source: STP1445-EB

Abstract

Polyethylene acetabular bearings which have been purposely cross-linked with doses of radiation above the 2.5–4 Mrads historically used for sterilization are now being implanted clinically. While there are considerable data from hip simulators that suggest that the wear rate of these new, cross-linked materials may be lower than their predecessors [1], there are little clinical data available. This study provides the results of the analysis of six retrieved cross-linked acetabular bearings, all with implantation durations of less than two years.

Keywords:
cross-link, polyethylene, acetabular, wear

Paper ID: STP11920S
Committee/Subcommittee: F04.18
DOI: 10.1520/STP11920S
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