Hello Doctor , one of my friend is suffering through some sort of back ache problem, and his leg becomes numb suddenly and continues for months a doctor suggested operation, he is suffering from this problem since a long time when diagnosed before doctor found that the spinal chords are getting pressure due to back bones, he went through an operation 10 yrs before doctors tried to cut one of his spinal bones to make some way for spinal chords when his legs became numb for the first time, but the problem reoccurs every now and then. he is very afraid of operations since then, as the doctors says their is no guaranty that the problem will not occur again. is their any other treatment.