question: My Dad is 80 and had severe back surgery for scoliosis about two years ago. He now suffers from severe burning in his knees and legs when he walks. It seems to be worse in the mornings. He is on several medications for pain and depression too. He has no numbness or pain in his feet. The pain Dr. said he couldn t give him a shot in the back due to the rod and pins in his spine. We are not sure his problems are a result of e surgery or some other underlying problem. Can you help?