| Effect of total knee arthroplasty implant position on flexion angle before implant-bone impingement. | |
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MedLine Citation:
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PMID: 20870382 Owner: NLM Status: In-Data-Review |
Abstract/OtherAbstract:
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We generated patient-specific computer models of total knee arthroplasty from 10 patients to compute maximum flexion angle before implant-bone impingement. Motion was simulated for 5 different femoral implant positions and 11 different tibial insert positions at 4 different tibial posterior slopes. In the neutral position, the mean maximum flexion angle was 136.3°. The range because of anatomical variation among patients was 13.0°. A combination of 2-mm posterior translation of the femoral component with a 10-mm anterior translation of the insert and a 7° posterior slope increased flexion by a mean of 14° relative to the neutral position. The rate of change in flexion angle was 0.4°/mm to 1.5°/mm with respect to implant position and 1.5°/mm increase in the posterior condylar offset. |
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Authors:
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Hideki Mizu-Uchi; Clifford W Colwell; Shuichi Matsuda; Cesar Flores-Hernandez; Yukihide Iwamoto; Darryl D D'Lima |
Publication Detail:
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Type: Journal Article Date: 2010-09-25 |
Journal Detail:
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Title: The Journal of arthroplasty Volume: 26 ISSN: 1532-8406 ISO Abbreviation: J Arthroplasty Publication Date: 2011 Aug |
Date Detail:
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Created Date: 2011-07-22 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 8703515 Medline TA: J Arthroplasty Country: United States |
Other Details:
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Languages: eng Pagination: 721-7 Citation Subset: IM |
Copyright Information:
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Copyright © 2011 Elsevier Inc. All rights reserved. |
Affiliation:
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Shiley Center for Orthopaedic Research and Education at Scripps Clinic, La Jolla, CA; Department of Orthopaedic Surgery, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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