The other end of {TAIL ~ the prosthesis} is shaped to replace the other end of {HEAD ~ the surgically removed bone segment} 
The other end of { TAIL ~ the prosthesis } is shaped to replace the other end of { HEAD ~ the surgically removed bone segment }
OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD