Cervical drill guide apparatus

A drill guide apparatus comprising:

• a handle assembly;
• an extension member extending from the handle assembly;
• a mounting plate disposed on a distal end of the extension member, wherein the mounting plate includes a curvate socket extending between a first bone plate contacting surface and an opposed second surface of the mounting plate, wherein the first and second surfaces of the mounting plate are substantially parallel;
• a protrusion extending distally from the mounting plate configured for selective engagement with a vertebral plate, wherein the protrusion is laterally offset from the curvate socket;
• and
• a guide mechanism extending proximally from the mounting plate and defining a longitudinal axis, the guide mechanism includes a first tubular member defining a first longitudinal bore and a second tubular member defining a second longitudinal bore, wherein the first and second tubular members each include a cylindrical portion and a semi-spherical outer surface portion, the semi-spherical outer surface portion being rotatably mounted within the curvate socket formed in the mounting plate such that each tubular member may be positioned at a plurality of angles relative to the mounting plate, wherein each of the first and second tubular members includes a transition between the cylindrical portion and the semi-spherical portion, wherein engagement of the transition of each of the first and second tubular members with the second surface of the mounting plate limits the angle between each of the first and second tubular members and the mounting plate.