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