Histopathological Findings of Failed Free Vascularized Fibular Grafting for Osteonecrosis of the Femoral Head after Long-Term Follow-Up

Figure 5

Decalcified HE staining of three interested zones. Gaps (black triangles) appeared in the healthy and transitional zones; blood vessel (black arrow) appeared along the graft implanted. Scale bars 2 mm and 1 mm.