I’m a year and a half out from TKR and after a second surgery on it finally got flexion - but the inside of the knee and behind the knee still are bruised and painful. In addition, I have been unable to stand for more than 10 minutes or walk more than 30 for that year and a half. After the “not my problem” attitude from the original surgeon, I finally found a practice willing to take me. The knee surgeon in that practice referred me to a foot and ankle surgeon who diagnosed Tarsal Tunnel syndrome - a compression of the tibial nerve where it enters a narrow canal at the ankle. She prescribed more PT. The PT who has seen me since day one connected the dots between where I’ve been complaining about the knee and the new diagnosis on the ankle. He said my tibial nerve is probably compressed from either the continued swelling or actual knee replacement. That my complaints are all on the same nerve. I relayed his comments to the foot surgeon who then referred me to a neurologist for a EMG/NCS/NCV Test. If you have tingling / pain in your foot after TKR - ask for a referral and this test from your primary. It seems as though the knee surgeons won’t order it because they know they caused the issue.