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Knee. 2012 Mar;19(2):112-5. doi: 10.1016/j.knee.2011.02.005. Epub 2011 Apr 14.

Influence of offset stem couplers in femoral revision knee arthroplasty: a radiographic study.

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  • 1Department of Orthopaedic Surgery, C.H.R.U. de Tours, Université François-Rabelais de Tours, Tours 37044, France. jean.brilhault@med.univ-tours.fr

Abstract

We questioned whether the use of offset femoral stem would result in modifying the posterior femoral condylar offset (PFCO) in revision knee arthroplasty (RTKA). We measured both PFCO and stem alignment on lateral radiographs of two cohorts: 91 knees with straight stems and 35 knees with offset coupled stems. A higher PCOR was observed in knees with an offset stem compared to knees with straight stem. Knees with an offset stem had a better alignment within the intramedullary canal. Our conclusion is that the use of a modular offset coupler with femoral stem in RTKA compared to a modular straight stem both increases the posterior condylar offset and improves alignment of the stem within the intramedullary canal.

Copyright © 2011 Elsevier B.V. All rights reserved.

PMID:
21497096
[PubMed - indexed for MEDLINE]
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