Fig. 6.

Estimated differences between baseline and postoperative jerk kinematic metrics. Estimated differences comparing baseline driving kinematic data with subsequent postoperative kinematic data with 95% CIs (indicated by the error bars) were normalized to corresponding metric thresholds. There was no difference in maximum longitudinal jerk (gravitational force equivalent per second [g/sec]) across all postoperative drives and a decrease in lateral jerk (g/sec) at postoperative week 12 compared with baseline; the noninferiority margin at x = −1.0 is not pictured because of the miniscule x axis values.