I had right TKR done 4 years ago. when I came out of surgery my leg from knee to toes was totally numb. was told normal. it wasn't, my surgeon pinched the popliteal artery behind my knee and I had no blood flow from the knee down. I had purple toes and a cold foot.
It took my primary to order and ABI test which if blood pressure of your legs. Very little pressure, had angiogram done and she couldn't go any further that behind that right knee. had to have surgery to open the artery. It was 2 months without blood flow to foot. I have some cell and tissue damage which has left some numb spots on bottom of foot and 3 of my toes. They tried to blame it on my back at first, but it wasn't . Went back to surgeon who did my knee and all he said was why did you wait so long to get it fixed you could of lost your leg. I saw him 3 times before I had artery surgery and all he ever said was it was normal to have nerve damage. Good Luck It's hard to find someone to listen and do something about it.
Lori