Had bottom foot numbness same day as TKR, never got better, 10 months after TKR, lower back started to hurt, after one year more I could hardly stand the low back pain it got so bad, tried acute puncture, spinal injections, you name it I tried it. Finally received two disk replacements and a laminectomy 7 moths ago. Back is stiff but ok, foot still numb as the day of TKR. Just saying, before the TKR I was in great shape except for knee pain, wish I never had TKR done, it all started after the TKR. Also have knee pain at night, now it's been TWO years! I thought a TKR was no big deal, I was wrong!