Fig. 7

Comparison of VAS scores (A), WOMAC scores (B) and Lysholm scores (C) between the cell-free fat extract (CEFFE) group and the hyaluronic acid (HA) group at each follow-up time point. Data points are expressed as (median, standard error); ^*represents P < 0.05 for two group comparisons; 3W, 3 weeks post-treatment; 6W, 6 weeks post-treatment; 3Mo, 3 months post-treatment; 6Mo, 6 months post-treatment