Patent attributes
A surgical apparatus that makes possible the replacement of ankle tissue between the bottom of the tibia and the adjoining top of the talus bone comprises: (a) a base having primary and secondary anchoring holes that extend through the base and through which anchoring pins may be extended for anchoring withh the tibia, anchoring holes having adjoining and cooperating, threaded, set screw holes and set screws that cooperate to assist in fixing the position of the base relative to the anchoring pins and the tibia, (b) a surgical blade positioning shelf, the front surface of the shelf configured to approximate the curvature observable in the top portion of the talus and the rear surface of the shelf having attached to it a shaft which may slide in and out from an opening in the front surface of the base, and (c) indicia attached to the shaft which allows one to record the position of the front surface of the surgical blade positioning shelf relative to the base.
