Hi Monana- The sneaky surgeons don't tell you about that side effect. I was very active and never had any pain or wweurd sensations other than my knee before tkr. The minute I came out of surgery my foot was numb. I am a year and half after tkr and mybtirs still have some numbness. The surgeon would not even let me describe my symptoms when I tried to tell him, and he just said it had nothing to do with the surgery. I was focused on getting my knee mobility and did not do anything specific about the foot numbness. When I started rigorously going on the stationary bicycle, the foot numbness decreased . As I became more active it got less, but sonetimes would be really bad. A year out, it was only a minor distraction and then I broke that foot. My ladder folded up on me and I crashed down into the metal furnace, etc. After I got out if my immobilizing boot cast, it was totalky numb again. It has been getting better since July when I was able to get out on my bike and walk again. I am rigorously bending my big tie up and down, holding for 30 seconds 3 times each direction with about 10 seconds between. I do those sets n the morning and usually at night. I also do stretches where I kneel with the toes flexed forward for 10-15 seconds, then relax them back, about three sets. I started all this about 4 weeks ago and it is really helping. By maneuvering the big toe, it seems to help the rest of the toes and foot. Good luck!