Fig. 2.
Pain scores over time (numerical rating scale [NRS] for pain [0 to 10]), at rest, with flexion, and with ambulation. Mean NRS pain score with ambulation (A), with bending (B), and at rest (C) for each of the randomized groups over time. Data are plotted as mean ± SE. Error bars extend to 1 SEM. POD = postoperative day.