Fig. 2From: Usefulness of an accelerometer-based navigation system in bilateral one-stage total knee arthroplastya Visual analog scales (VAS) for pain intensity assessed at 6 h, 12 h, 24 h, 48 h and 72 h postoperative. b Knee flexion angle assessed at 24 h, 48 h and 72 h postoperative. Repeated measures ANOVA was used to compare between groups. Data are presented with mean ± 95% confidence intervalBack to article page