Hello, I had surgery for spinal stenosis in 2010 fused 2 to 5 with hardware in place. Now I am having a hard time walking. They say it’s due to the surgery. I use a tens unit and heat on my back at home,also PT from time to time.MRI showed my nerves were being crushed so much to my legs and in time would cause my legs to stop working ,so I took my chances and had the surgery.I believe it kept me from needing to use a wheel chair for many years.I can not walk far,use a cane due to loss of balance.I rent a scooter when I need to. I make the best of my situation.always could be worse.wish you all the best..