Apparatus including a first spinal prosthetic member attachable to a first spinal structure, a second spinal prosthetic member attachable to a second spinal structure and articulating with the first spinal prosthetic member to form an articulating assembly, and pedicle screw mounting members extending outwards from the first and second spinal prosthetic members, at least one of the pedicle screw mounting members being movably attached to the first and second spinal prosthetic members such that the at least one pedicle screw mounting member has at least two different attachment orientations with respect to reference axes defined on one of the spinal prosthetic members.
