Figure 2.

Cartilage repair with ABM scaffold in a porcine model. A. Macroscopic appearance of the cartilage defect healing in three groups at 6 (1-3), 12 (4-6), and 24 (7-9) weeks after the operation. The three groups were as follows: M group, cartilage defects were treated with the microfracture technique alone; ABM group, cartilage defects were implanted with ABM scaffold alone; and ABM+M group, cartilage defects were treated with microfracture and implanted with the ABM scaffold. B. H&E staining in the three groups after the operation. N, normal cartilage; R, repair tissues. The arrows indicate the margins of the normal tissue and the repaired tissue. Scale bars=500 µm.