When my spine became inoperable, my neurosurgeon recommended a morphine pump. For me, it works great. Minor surgery is performed after a trial run. A catheter is inserted in the spinal cord. A low dose is dispensed in the spinal cord, that is very effective. You have no control over the amount you receive. The doctor through computer, sets the amount dispensed. It is usually suggested by your doctor or a pain clinic. I don't know where you live, but most teaching hospitals have this treatment available upon referral from your doctor. There is also an electrical stimulation machine that is for pain management. I have gotten great relief from this form of treatment. Good luck.