Fig. 12From: Bilayer osteochondral graft in rabbit xenogeneic transplantation model comprising sintered 3D-printed bioceramic and human adipose-derived stem cells laden biohydrogelOptical photos inspected the gross examinations, and the collagen composition of bilayer osteochondral grafts was assessed using Masson’s trichrome staining. At 8 weeks after surgery (a). At 12 weeks after surgery (b). Red dashed line box: the chondral layer defect area; Black dashed line box: the subchondral layer defect areaBack to article page