| Wear-simulation analysis of rotating-platform mobile-bearing knees. | |
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MedLine Citation:
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PMID: 17002146 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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The wear and wear debris from rotating-platform mobile-bearing knees and fixed-bearing knees were compared in knee joint-simulator studies. The wear rate of the fixed-bearing knees was found to increase as the kinematics were increased because of an increase in internal-external rotation and an increase in anterorposterior (AP) translation. The wear rate of the rotating-platform mobile-bearing knees was found to be significantly lower than that of the fixed-bearing knees. The rotating-platform mobile-bearing knee was able to decouple the complex kinematics to pure rotation at the inferior tibial articulating surface and linear flexion-extension and AP sliding at the superior femoral articulating interface, substantially reducing cross-shear and wear. No difference was found in the wear debris between the rotating-platform and fixed-bearing knees. This resulted in a substantially reduced functional biological activity or osteolytic potential for the rotating-platform mobile-bearing knees due to the lower wear rates. |
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Authors:
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John Fisher; Hannah McEwen; Joanne Tipper; Louise Jennings; Richard Farrar; Martin Stone; Eileen Ingham |
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Publication Detail:
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Type: Comparative Study; Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: Orthopedics Volume: 29 ISSN: 0147-7447 ISO Abbreviation: Orthopedics Publication Date: 2006 Sep |
Date Detail:
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Created Date: 2006-09-27 Completed Date: 2007-03-19 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 7806107 Medline TA: Orthopedics Country: United States |
Other Details:
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Languages: eng Pagination: S36-41 Citation Subset: IM |
Affiliation:
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Institute of Medical and Biological Engineering, University of Leeds, Leeds, United Kingdom. |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Knee Prosthesis* Prosthesis Design Range of Motion, Articular |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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