In another aspect of the invention, a method for evaluating {TAIL ~ the performance} of a knee of {HEAD ~ a patient} is provided 
In another aspect of the invention , a method for evaluating { TAIL ~ the performance } of a knee of { HEAD ~ a patient } is provided
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH