Stabilized spinal fixation device

A spinal fixation device comprising:

• a device body configured for implantation in a human body and including a hook base having an upper portion and an arcuate shoe portion comprising a first leg adjacent to the hook base, the first leg defining an outside surface and a bone facing surface, wherein a channel is formed in the outside surface;
• a clamp formed from shape memory material and attached to the device body;
• a mounting post extending outward from the outside surface between a distal end of the first leg and the channel, wherein the mounting post is formed in quarters defined by longitudinally extending channels intersecting to define a pin bore;
• and
• a mounting bracket having a base and two outwardly extending side walls, wherein a translational slot is formed through the base;
• wherein the two side walls of the mounting bracket fit within the channel, and the mounting post extends through the translational slot of the mounting bracket so as to allow for translational or sliding movement of the upper portion relative to the shoe portion.