Fig. 5

Staining with a monoclonal antibody against S-100 showing intraligamentous mechanoreceptors (brown color) in a normal ACL tissue (control group), b remnant specimens, and c Achilles allograft specimens (immunohistochemical stain, ×200)
Staining with a monoclonal antibody against S-100 showing intraligamentous mechanoreceptors (brown color) in a normal ACL tissue (control group), b remnant specimens, and c Achilles allograft specimens (immunohistochemical stain, ×200)