Statistics
SECONDARY
The primary outcome measure for this study was alignment within 3° of neutral mechanical alignment three months after surgery. To detect a difference of this magnitude with a power of 90% at alpha = 0.05, the initial power calculation indicated that we required 82 patients per group, 164 in total. The data presented in this manuscript represents an analysis of secondary outcome measures over the course of the study. Paired t-tests were performed to compare the change in each outcome measure from pre-operatively to 10 years, as well as comparing the difference between navigated and conventional groups overall at 10 years (Table Patient-reported outcome measures pre-operatively and 10 years following navigated or conventional total knee arthroplastyPaired t tests comparing pre-op and ten year outcomes in each group, and two-tailed 