Patent ID: 8100976

Claim:
An interbody device comprising: a u-shaped base member comprising a primary member and a secondary member, wherein the primary member being integrally formed with first and second legs and having a top surface and a bottom surface, and the secondary member extending at an angle relative to the primary member and downward from the bottom surface of the primary member; said first and second legs of said primary member being spaced laterally from each other to extend around an open area there between for receiving bone graft material, said primary member having a plurality of interface members extending from at least one surface thereon with at least a portion of the interface members being located at the first and second legs, the interface members being configured to provide controlled subsidence of the interbody device subsequent to implantation via penetration of the interface members into at least one bone body at locations not at the open area between the first and second legs; said primary member having at least one angled aperture, wherein the at least one angled aperture comprises an elongated slot configured to receive a bone fastener therethrough; said secondary member having at least one angled aperture configured to receive a bone fastener therethrough, and a plurality of bone fasteners extending through said apertures in said primary and secondary members of the base member.