Effect of Autologous Platelet Rich Fibrin on the Healing of Experimental Articular Cartilage Defects of the Knee in an Animal Model
Figure 4
Macroscopic appearance of the representative defects from the two treatment groups at different time intervals: (a) control (4 weeks), (b) PRF treated (4 weeks), (c) control (16 weeks), (d) PRF treated (16 weeks), (e) control (24 weeks), and (f) PRF treated (24 weeks).