Fig. 13

Photomicrograph depicting the histologic structure of the tendon-bone region in the 12-week graft group. Chondrocytes can be seen in rows, while collagen fibers exhibit parallel arrangement. In addition, increased presence of vascularity and diminished inflammatory response is observed. The rectangular box indicates the area of higher magnification. G: graft; B: bone. (a) Hematoxylin and eosin, original magnification × 40; (b) Hematoxylin and eosin staining, original magnification × 100; (c) Masson’s trichrome staining, original magnification × 40; (d) Masson’s trichrome staining, original magnification × 100