Bone-tendon-bone assembly with cancellous allograft bone block

The invention is directed toward a cancellous bone block assembly with at least one tendon replacement member being extended between two shaped cancellous bone blocks. Each substantially cylindrically shaped cancellous bone block has a central through going bore, a flat exterior longitudinal surface and a channel longitudinally cut in the exterior of the bone block body opposite the flat longitudinal surface. The tendon replacement member is inserted through the central through going bore around the end of the block and looped back along the flat longitudinal side where it is tied to the back of the tendon loop. A channel cut in the exterior surface is adapted to receive an interference screw to keep the block anchored in a bone tunnel previously cut in the respective bone.