A Zoledronate treated graft after 6 weeks. No marrow cavity has formed behind the ossification front but the graft trabeculas below are still remaining to a large extent. The total amount of bone, both newly formed and remaining graft bone is higher in the remodelled area compared to the control. (Hematoxylin Eosin × 20). B Magnification of the borderzone with retained trabeculas in the remodelled area.