A system and method for the stabilization and fixation of the lumbar spine. The system can include a plurality of pedicle screws, a support rod, a plurality of rod clamps, and a plurality of coupling members. In one aspect, each coupling member can be configured to engage a proximal portion of a pedicle screw and can have a socket portion that is configured to receive a socket engaging portion of the rod clamp, such that the coupling member and the pedicle screw can be pivoted three-dimensionally relative to the rod clamp and the support rod.
