A system and method for repairing anterior cruciate injuries in animals is disclosed. The system includes a fixture used to locate a pilot hole in a tibia, a drill guide used to locate and drill additional holes in the tibia, an angle gauge used to position the drill guide so that it is able to locate and drill additional holes in the tibia, a saw assembly that separates the proximal end of the tibia from the shaft of the tibia. The repositioned proximal end may be secured to the tibia by an optional fixation plate or by a suitable adhesive.