I had a TKR last November, and after one year the burning went away. Ice and Voltaren Gel helped with the burning. I still have numbness on the outside of my knee and swelling. My Therapist says the swelling may not ever go completely away. I will schedule a visit with the surgeon this month to discuss. I am also considering acupuncture. The ligaments supporting my knee were stretched out, so would not stabilize the artificial knee, so I also have intramedullary rods. You just never know how it will turn out. I am glad I had only one knee done.