Transfacet-Pedicle Locking Screw Fixation of Lumbar Motion Segment

摘要

A transfacet-pedicle locking screw fixation assembly includes a plurality of pedicle screws each including threads at a distal end and a connecting receptacle at a proximal end. The connecting receptacle is oriented perpendicularly with respect to a longitudinal axis of the pedicle screw. A basic transfacet locking screw including threads at least at a distal end has the distal end engaging the connecting receptacle in one of the pedicle screws. The transfacet locking screw may also be interlocked with another transfacet locking screw.