Journal
JOURNAL OF ARTHROPLASTY
Volume 29, Issue 9, Pages 1795-1802Publisher
CHURCHILL LIVINGSTONE INC MEDICAL PUBLISHERS
DOI: 10.1016/j.arth.2014.04.037
Keywords
navigation; conventional; TKA; comparison; minimum 5-year follow-up
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In the literature, studies of computer-assisted total knee arthroplasty (TKA) after mid-term period are not conclusive and long-term data are rare. In a prospective, randomized, comparative study 100 conventional TKAs (group REG) were compared with 100 computer-assisted TKAs (group NAV). Minimum follow-up was 5 years. No difference in implant failure was found with 1.1% in group NAV versus 4.6% in group REG (P = 0.368). Group NAV showed a significantly less mean deviation of mechanical limb axis (P = 0.015), more TKAs (90% versus 81% in group REG) were within 3 degrees varus/valgus and a higher tibial slope and lateral distal femoral angle (LDFA) accuracy was found (P <= 0.034). Clinical investigational parameters showed no differences (P >= 0.058). Insall and HSS score total were also higher in group NAV (P <= 0.016). (C) 2014 Elsevier Inc. All rights reserved.
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