Please explain the procedure for advanced neuro modulation system? how it works? success rates?

ANS system: I think you are referring to spinal cord stimulation. Basically its the placement of fine wires with metal contacts into the spine. This is connected to a generator that provides a fine current. The idea is to produce a tingling feeling in an area of pain in order to reduce or control the pain severity. There are 3 companies and the devices work differently.