Figure 3

Comparison of change rate of weight-bearing VAS between IA PN and IA HMWHA at week 16. Significant reduction of weight-bearing VAS was observed from the baseline in both groups. However, there were no significant difference in change rate of weight-bearing VAS between two groups (IA PN = − 54.0 ± 38.1%, IA HMWHA = − 42.8 ± 35.8%, p = 0.296) IA Intraarticular, PN Polynucleotide, HMWHA High molecular-weight hyaluronic acid, VAS Visual analogue scale.