One end of the prosthesis is shaped to mate with {HEAD ~ the remaining segment} of {TAIL ~ bone} 
of
One end of the prosthesis is shaped to mate with { HEAD ~ the remaining segment } of { TAIL ~ bone }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL