Research Article

Is the Combination of Platelet-Rich Plasma and Hyaluronic Acid the Best Injective Treatment for Grade II-III Knee Osteoarthritis? A Prospective Study

Figure 2

The evolution of the mean Western Ontario McMaster Universities Osteoarthritis Index (WOMAC) scores in the three groups. HA: hyaluronic acid, PRP: platelet-rich plasma, and FU: follow-up.