The present invention provides a cannulated hemi-implant with a base and a threaded stem for fixing the stem of the implant within a medullary canal of a phalanx or other bone in the foot. The implant includes a tri-part head capable of both cutting bone and self-threading, with bone forming the medullary canal of a phalanx of a human foot. The present invention also provides a hand tool which engages and rotates the implant within the medullary canal of the phalanx. The present invention further provides a method of surgically implanting the implant in the medullary canal of the phalanx or other bone.
