Figure 7
From: In situ repair of bone and cartilage defects using 3D scanning and 3D printing
Process of 3D bioprinting and photopolymerization on osteochondral defect. Due to the influence of UV light of camera, the light was turned off when shooting video and photographs in one of the three printing process. Photopolymerization was taken at the end of printing. (A) Repair of osteochondral defect through in situ 3D bioprinting with alginate hydrogel. (B) Exposure to UV light. (C) Alginate hydrogel that was printed to repair the osteochondral defect was transparent before photopolymerization. (D–F) The color of alginate hydrogel turned milky white after being exposing to UV light in few seconds. The cartilage cap was slightly higher than the contour of the condyle according to the three views of samples.
