Abstract: Presented is a cervical saddle plate and a cervical saddle plate assembly for stabilization of vertebrae in surgical procedures on humans. The assembly includes an anterior cervical plate, which is held in position on the vertebrae by screws which pass through screw passages in the plate body. At least some of the screw passages include a recess well which provides inter-fitting engagement with a cervical saddle plate which may be attached in a subsequent operation. By providing for interlocking engagement of the anterior cervical plate and cervical saddle plate, additional vertebrae can be stabilized without the need to remove the previously installed anterior cervical plate.