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