Fig. 9From: Hydrogel-hydroxyapatite-monomeric collagen type-I scaffold with low-frequency electromagnetic field treatment enhances osteochondral repair in rabbitsHistological analysis of newly formed tissue at 12Â weeks post-surgery. The staining of hematoxylin and eosin (H&E), toluidine blue (T-B), and Safranin O-fast green (S-F) showed that there was obvious defect in the Blank group, little neocartilage in cell-free groups, and evident repair in cell-loaded groups. In particular, the EMF group had the thickest newly formed tissue in the cartilage layer with most chondrocytes and a well-integrated interface. Masson's Trichrome (M-T) staining also suggested enhanced subchondral bone regeneration and HAC scaffold degeneration in EMF group compared to other groups. The magnification of pictures are 3X for upper rows and 30X for lower rowsBack to article page