Figure 7

Histological sections following immunohistochemistry to detect type VI collagen. A) Empty defect, B) Scaffold alone, C) Scaffold + rhFGF-18, D) Scaffold + BMP-7. In A, where there is a fibrocartilagenous repair, there is little pericellular matrix staining with marked inter-territorial matrix staining. In C there is marked pericellular staining (black rings around the cells) indicating a more hyaline cartilage like repair tissue.