Fig. 12

Photomicrograph depicting the histologic structure of the tendon-bone region in the 6-week graft group. A poorly organized pattern of reparative collagen fibers is observed bridging the gap between the graft and bone trough. A significant degree of cellularity, along with mild vascularity and inflammation around the graft is present. The rectangular box indicates the area of higher magnification. G: graft; B: bone. (a) Hematoxylin and eosin, original magnification × 20; (b) Hematoxylin and eosin staining, original magnification × 40; (c) Masson’s trichrome staining, original magnification × 40