Fig. 2

This figure represents the results of the 100 mm visual analog scale between the two groups at each time. The 100 mm visual analog scale for pain was significantly lower (Viscosupplementation group 27.5 mm ± 17.9 mm vs. Control group 40.7 mm ± 24.7 mm, P = 0.047) Student’s t-test was used to compare the data

Asterisks indicate values that were significantly different between the two groups (P < 0.05).