A pedicle screw assembly has a bone screw, a tulip, a multi-segmented locking member and a saddle. The multi-segmented locking member is internal of the tulip positioned in a recess or undercut groove of an inner surface of the tulip. The saddle has a proximal end for engaging a rod and a distal end for receiving a head of the bone screw. The saddle has an exterior surface positioned between the ends. The outer surface is sized to move axially inside the tulip.
