Foot remains numb 2.5 yrs after bunionectomy. could there be another reason than the surgery? currently have posterior knee & anterior lower leg pain

Not likely.: If your foot was not numb before having bunion surgery and became numb immediately after the surgery, the chances are, the numbness is a direct result of the surgery. There is the possibility that any one of a number of other conditions could also play a role in either the foot numbness, subsequent leg pain or both. To remove all doubt, an evaluation by an orthopedic surgeon is a place to start.