a method of replacing an acl with a graft . the method provides for the drilling bone tunnels in a femur and a tibia . a replacement graft is provided having first and second ends . a biodegradable composite screw is provided . the screw is made from a biodegradable polymer and a bioceramic or a bioglass . at least one end of the graft is secured in a bone tunnel using the biodegradable composite screw .