#$%^&*AU2014274519A120150205.pdf#####ABSTRACT This invention relates generally to systems and methods for performing spinal fixation. In one aspect of the present invention, there is provided an implant for treating the spine, comprising: a stabilization plate comprising an access surface and a bone facing surface a first attachment lumen between the access surface and the bone facing surface of the stabilization plate, the first attachment lumen having a first attachment diameter adjacent to the access surface of the stabilization plate, a lumen surface, and a second attachment diameter adjacent to the bone facing surface of the stabilization plate a first lumen insert located at least partially in the first attachment lumen and having an inner insert surface and an outer insert surface, wherein the first lumen insert is configured to provide an intermediate layer of material between an anchor and the first attachment lumen and a feature configured to prevent the anchor from backing out of the first attachment lumen, the feature located closer to the access surface than the first lumen insert.
