In one embodiment, an apparatus is provided that quantifies the rotation of the tibia in {HEAD ~ response} to {TAIL ~ a known torque} 
In one embodiment , an apparatus is provided that quantifies the rotation of the tibia in { HEAD ~ response } to { TAIL ~ a known torque }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL