A spinal implant comprising: a substantially D-shaped body having an upper surface, a lower surface, an anterior portion, a posterior portion, curved sidewalls and a central opening extending between the upper and lower surfaces； and one or more apertures within the anterior portion of the body for receiving a fixation element, the one or more apertures comprising a first aperture centrally located on the anterior portion and two apertures laterally located on the anterior portion； wherein at least one of the apertures is configured to permit a predetermined amount of nutation by the fixation elements； and the body defines a generally wedge shaped structure suitable for a midline insertion approach.
