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