Cartilage Repair and Subchondral Bone Migration Using 3D Printing Osteochondral Composites: A One-Year-Period Study in Rabbit Trochlea

Figure 12

Illustration of subchondral bone migration pattern during critical size defect restoration. The subchondral bone remodeling during critical osteochondral repair proceeds with a “flow like” discipline, by which the repaired subchondral bone migrates from surrounding bone part to the defect center; the defect margin becomes almost completely joined together with each other at 24 weeks and 52 weeks. The yellow part indicates the repaired cartilage, while blue part shows how subchondral bone migrates from periphery to center area and the remodeling process of subchondral bone shape.