Journal
JOURNAL OF ARTHROPLASTY
Volume 30, Issue 9, Pages 59-63Publisher
CHURCHILL LIVINGSTONE INC MEDICAL PUBLISHERS
DOI: 10.1016/j.arth.2014.12.036
Keywords
total knee arthroplasty; computer-assisted surgery; navigated total knee; Oxford Knee Score; revision rate; joint registry
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The objective of this study was to determine whether computer assisted navigation in total knee arthroplasty (TKA) improves functional outcomes and implant survivability using data from a large national database. We analysed 9054 primary TKA procedures performed between 2006 and 2012 from the New Zealand National Joint Registry. Functional outcomes were assessed using Oxford Knee Questionnaires at six months and five years. On multivariate analysis, there was no significant difference in mean Oxford Knee Scores between the navigated and non-navigated groups at six months (39.0 vs 38.1, P=0.54) or five years (42.2 vs 42.0, P=0.76). At current follow-up, there was no difference in revision rates between navigated and non-navigated TKA (0.46 vs 0.43 revisions 100 component years, P=0.8). (C) 2015 Elsevier Inc. All rights reserved.
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