Document Detail


Anatomic rotational relationships of the proximal tibia, distal femur, and patella: implications for rotational alignment in total knee arthroplasty.
MedLine Citation:
PMID:  12934219     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The orientation of the femur, tibia, and patella are important considerations in total knee arthroplasty. Our goal was to describe the relationships between the femoral epicondylar (FE) axis, posterior femoral (PF) axis, posterior tibial (PT) axis, patellar (PAT) axis, and patellar ligament (PL). A secondary goal was to determine where the short axis of the tibial tray intersects the patellar ligament as a function of tibial component rotation. Thirty normal magnetic resonance imaging (MRI) scans were analyzed. Strong relationships were found between the FE and PAT axes (2 degrees +/- 3 degrees, r(2) = 0.73), and between the FE and PF axes (6 degrees +/- 2 degrees, r(2) = 0.77). When the tibial baseplate was aligned along the PT axis, 30% of the cases were in an ideal position. When the FE axis was used, 73% were ideal.
Authors:
Stephen J Incavo; Kathryn M Coughlin; Charles Pappas; Bruce D Beynnon
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  The Journal of arthroplasty     Volume:  18     ISSN:  0883-5403     ISO Abbreviation:  J Arthroplasty     Publication Date:  2003 Aug 
Date Detail:
Created Date:  2003-08-22     Completed Date:  2004-01-08     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  8703515     Medline TA:  J Arthroplasty     Country:  United States    
Other Details:
Languages:  eng     Pagination:  643-8     Citation Subset:  IM    
Affiliation:
Department of Orthopaedics and Rehabiliation, University of Vermont, Burlington, VT 05405, USA.
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MeSH Terms
Descriptor/Qualifier:
Adult
Arthroplasty, Replacement, Knee*
Female
Femur / anatomy & histology*
Humans
Magnetic Resonance Imaging
Male
Middle Aged
Patella / anatomy & histology*
Rotation
Tibia / anatomy & histology*

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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