Patent ID: 8864802

Claim:
An implant, comprising a shaft region having one or more holes for receiving bone fasteners; and a head region extending from the shaft region and having a plurality of circular holes for receiving bone fasteners, the plurality of circular holes including an unthreaded central screw hole having a center and at least three threaded locking screw holes each having a center and surrounding the central screw hole, wherein the centers of the locking screw holes define a polygon and wherein the center of the central screw hole is located on or within the polygon, wherein the central screw hole comprises a part-spherical or conical hole portion on a side opposite the bone contacting side of the implant; and a targeting hole located intermediate two of the threaded locking screw holes, the targeting hole having grooves extending substantially radially therefrom on the side opposite the bone contacting side for stabilizing a targeting instrument.