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Accepted (AM)Open Access (License Unspecified), Open
Journal article
Mechanical Properties, Oxidation, and Clinical Performance of Retrieved Highly Cross-Linked Crossfire Liners After Intermediate-Term Implantation
The Journal of arthroplasty, v 25(4), pp 614-623
2010
PMID: 19520545
Featured in Collection : UN Sustainable Development Goals @ Drexel
Abstract
Sixty Crossfire (Stryker Orthopaedics, Mahwah, NJ) liners were consecutively revised after an average of 2.9 years (range, 0.01-8.0 years) for reasons unrelated to wear or mechanical performance of the polyethylene. Femoral head penetration was measured directly from 42 retrievals implanted for more than 1 year. Penetration rate results (0.04 mm/y, on average; range, 0.00-0.13 mm/y) confirmed decreasing wear rates with longer in vivo times. Overall, we observed oxidation levels at the bearing surface of the 60 liners (0.5, on average; range, 0.1-1.7) comparable to those of nonimplanted liners (0.5, on average; range, 0.3-1.1) and preservation of mechanical properties. We also measured elevated oxidation of the rim (3.4, on average; range, 0.2-8.8) that was correlated with implantation time. Rim surface damage, however, was observed in only 3 (5%) of 60 cases. Retrieval analysis of the 3 rim-damaged liners did not reveal an association between surface damage and the reasons for revision.
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Details
- Title
- Mechanical Properties, Oxidation, and Clinical Performance of Retrieved Highly Cross-Linked Crossfire Liners After Intermediate-Term Implantation
- Creators
- Steven M. Kurtz - Exponent (United States)Matthew S. Austin - Rothman InstituteKhalid Azzam - Rothman InstitutePeter F. Sharkey - Rothman InstituteDaniel W. MacDonald - Drexel UniversityFrancisco J. Medel - Drexel UniversityWilliam J. Hozack - Rothman Institute
- Publication Details
- The Journal of arthroplasty, v 25(4), pp 614-623
- Publisher
- Elsevier
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- School of Biomedical Engineering, Science, and Health Systems
- Web of Science ID
- WOS:000278905300020
- Scopus ID
- 2-s2.0-77953123950
- Other Identifier
- 991019169113104721
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- Collaboration types
- Industry collaboration
- Domestic collaboration
- Web of Science research areas
- Orthopedics