ARTHROPLASTY
Lower incidence of outliers, but similar clinical outcome with navigated vs. conventional TKA
Knee Surg Sports Traumatol Arthrosc. 2016 Nov;24(11):3381-338680 patients scheduled for total knee arthroplasty were randomized to the surgery with the use of either imageless navigation or conventional extra- and intramedullary instrumentation. The purpose of this study was to compare radiographic and clinical outcomes over a minimum of 9-year follow-up. Data demonstrated a significantly lower incidence of mechanical axis outliers (varus or valgus deviation exceeding 3 degrees from neutral) with imageless navigation compared to conventional instrumentation, though no significant differences in clinical outcome measures or range of motion were observed between groups after a minimum of 9 years.
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