Figure 6From: Development of a cartilage composite utilizing porous tantalum, fibrin, and rabbit chondrocytes for treatment of cartilage defect Alcian blue staining for proteoglycan of tissue in vitro (A), 4Â weeks in vivo (B), and 8Â weeks in vivo (C). Formed tissue obtained from 8Â weeks in vivo construct revealed abundant cells in clusters with positive staining throughout the extracellular matrix compared to 4Â weeks in vivo and in vitro construct.Back to article page