Journal article
Plasticity-induced damage layer is a precursor to wear in radiation-cross-linked UHMWPE acetabular components for total hip replacement
The Journal of arthroplasty, v 14(5), pp 616-627
1999
PMID: 10475563
Featured in Collection : UN Sustainable Development Goals @ Drexel
Abstract
The mechanism for the improved wear resistance of cross-linked ultra-high-molecular-weight polyethylene (UHMWPE) remains unclear. This study investigated the effect of cross-linking achieved by gamma irradiation in nitrogen on the tribologic, mechanical, and morphologic properties of UHMWPE. The goal of this study was to relate UHMWPE properties to the wear mechanism in acetabular-bearing inserts. Wear simulation of acetabular liners was followed by detailed characterization of the mechanical behavior and crystalline morphology at the articulating surface. The wear rate was determined to be directly related to the ductility, toughness, and strain-hardening behavior of the UHMWPE. The concept of a plaasticity-induced damage layer is introduced to explain the near-surface orientation of the crystalline lamellae observed in the wear-tested acetabular liners. Cross-linking reduces abrasive wear of acetabular components by substantially reducing—but not eliminating—the plasticity-induced damage layer that precedes abrasive wear.
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Details
- Title
- Plasticity-induced damage layer is a precursor to wear in radiation-cross-linked UHMWPE acetabular components for total hip replacement
- Creators
- Avram A. Edidin - StrykerLisa Pruitt - University of California, BerkeleyCharles W. Jewett - University of California, BerkeleyDeborah J. Crane - University of California, BerkeleyDaniel Roberts - ExponentSteven M. Kurtz - Exponent (United States)
- Publication Details
- The Journal of arthroplasty, v 14(5), pp 616-627
- Publisher
- Elsevier
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- School of Biomedical Engineering, Science, and Health Systems
- Web of Science ID
- WOS:000082126300016
- Scopus ID
- 2-s2.0-0032773847
- Other Identifier
- 991019189059504721
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InCites Highlights
Data related to this publication, from InCites Benchmarking & Analytics tool:
- Web of Science research areas
- Orthopedics