3. The spinal fixation system of claim 2 , further including a cap that threadably engages the set screw, whereby the cap fixes the connecting plate to the rod receiving portion of the bone anchor.
3. The spinal fixation system of claim 2 , further including a cap that threadably engages the set screw, whereby the cap fixes the connecting plate to the rod receiving portion of the bone anchor. 13. The spinal fixation system of claim 3 , wherein the cap threadably engages the set screw at a threaded bore defined by the cap.