Journal article
Degradation of mechanical properties of UHMWPE acetabular liners following long-term implantation
The Journal of arthroplasty, v 18(7), pp 68-78
2003
PMID: 14560414
Featured in Collection : UN Sustainable Development Goals @ Drexel
Abstract
We tested the hypothesis that the mechanical and chemical behavior of gamma radiation-sterilized ultrahigh-molecular-weight polyethylene (UHMWPE) changes after implantation. Relationships between the mechanical behavior and oxidation index were explored in a cohort of 16 consecutive traceable Hexloc acetabular components (Biomet, Warsaw, IN) that were machined from extruded, stearate-containing UHMWPE and gamma sterilized in air. Shelf aging time (average, 0.4 years) and implantation time (average, 11.5 years) were determined for all 16 inserts. The retrieved liners exhibited significant mechanical degradation, which was most severe in the unloaded surface regions. Analysis of the Fourier transform infrared spectroscopy data revealed a significant association between the oxidation index and mechanical degradation of the UHMWPE. The results of this study strongly support the hypothesis that the degradation of mechanical properties for the liners occurred during implantation.
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Details
- Title
- Degradation of mechanical properties of UHMWPE acetabular liners following long-term implantation
- Creators
- Steven M Kurtz - Implant Research Center, School of Biomedical Engineering, Science and Heath Systems and Department of Materials Engineering, Drexel University, Philadelphia, Pennsylvania, USAWilliam Hozack - Rothman Institute, Philadelphia, Pennsylvania, USAMichele Marcolongo - Implant Research Center, School of Biomedical Engineering, Science and Heath Systems and Department of Materials Engineering, Drexel University, Philadelphia, Pennsylvania, USAJoseph Turner - Implant Research Center, School of Biomedical Engineering, Science and Heath Systems and Department of Materials Engineering, Drexel University, Philadelphia, Pennsylvania, USAClare Rimnac - Musculoskeletal Mechanics and Materials Laboratories, Department of Mechanical and Aerospace Engineering and Orthopaedics, Case Western Reserve University, Cleveland, Ohio, USAAv Edidin - Implant Research Center, School of Biomedical Engineering, Science and Heath Systems and Department of Materials Engineering, Drexel University, Philadelphia, Pennsylvania, USA
- Publication Details
- The Journal of arthroplasty, v 18(7), pp 68-78
- Publisher
- Elsevier
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- School of Biomedical Engineering, Science, and Health Systems
- Web of Science ID
- WOS:000186069400013
- Scopus ID
- 2-s2.0-0141924490
- Other Identifier
- 991014878444704721
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- Collaboration types
- Industry collaboration
- Domestic collaboration
- Web of Science research areas
- Orthopedics