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Distal femoral resection at knee replacement - The effect of varying entry point and rotation on prosthesis position

Lookup NU author(s): Professor David Deehan, Professor Andrew McCaskie

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Abstract

Malalignment may contribute to early prosthesis failure through point loading and pi emature polyethylene wear Femoral resection requires for distal planar resection contingent upon correct rotation and coronal alignment. Using a standard model, we have examined the influence of differing femoral entry points and rotations upon final femoral component positioning A graphical method and navigation system independently quantified the individual and combined impact of these variables. in 3 planes Nine permutations were assessed with reference to neutral rotation and a central entry point. The graphical results were corroborated by the navigation analyses We found that external rotation and a superolateral entry point introduced the greatest en or in final component positioning We have identified a safe envelope for femoral rod positioning and recommend that the rotational alignment is determined before distal bone resection (c) 2009 Elsevier BV All rights reserved

Publication metadata

Author(s): Gangadharan R, Deehan DJ, McCaskie AW

Publication type: Article

Publication status: Published

Journal: The Knee

Year: 2010

Volume: 17

Issue: 5

Pages: 345-349

ISSN (print): 0968-0160

ISSN (electronic): 1873-5800

Publisher: Elsevier

URL: http://dx.doi.org/10.1016/j.knee.2009.09.011

DOI: 10.1016/j.knee.2009.09.011

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