“…90,92 Chitosan has been modified to increase biochemical similarity to cartilage 85,88,94,112 and to prepare injectable scaffolds. [84][85][86]91,95 Chondrocytes encapsulated in injectable chitosan hydrogels repaired non-weightbearing defects in sheep, with good integration with the surrounding tissue. 86 In situ-gelling hydrogels based on chitosan and glycerol phosphate (BST-CarGel; Biosyntech, Quebec, Canada) mixed with blood repaired 1 cm 3 weightbearing cartilage defects in sheep with more hyaline cartilage than microfracture controls.…”