28 this arrangement limits the relative motion possible between the support collar 18 and the toggle bolt 22 while allowing the toggle bolt ball end 40 to rotate freely within the pedicle screw retention cavity 34 although an assembly process has been described above the anchoring assemblies 12 are typically delivered to the end user surgeon as a finished unit in an alternate embodiment the threaded end 26 of the pedicle screw 20 may be replaced by a hook shaped section 50 this hook shaped section 50 allows the anchoring assembly 12 to be used in settings where a screw like attachment is not appropriate such as the fixation of bridge connectors 126 discussed below this hook shaped section 50 is shown best in fig9 the spinal fixation system 10 of the present invention includes several types of connectors 14 more specifically these connectors may take one of several shapes a right facing straight connector 52 shown in fig6 a right facing offset connector 54 shown in fig7 a left facing offset connector 56 shown in fig8 and a left facing straight connector 58 shown in fig6 a each of the various connectors 14 has a preferred use as shown in fig1 for example the right facing connectors 52 54 are used to secure anchoring assemblies 12 to a right side oriented stabilizing rod 16 39 the left facing connectors 56 58 are in turn are used to attach anchoring assemblies 12 to a left side oriented stabilizing rod 16 additionally each connector.