My husband has had reflex sympathetic dystrophy since 1985. He has an internal morphine pump and a spinal cord stimulator. The morphine pump really generally has to be used to very specifically located pain. It can be difficult to find a truly competent pain specialist to work with. Even in a major metropolitan area, it takes some searching to find a pain specialist who works with morphine pumps. It takes jumping through many hoops to get insurance to approve implantation because they are expensive to maintain long-term. Each time he needs a refill (about every 3 months) it is about $3,000-$4,000 charged to insurance, so insurance generally won't approve morphine pumps except in the most extreme cases when absolutely every other mode of treatment has been tried and a trial test has been done to see if a patient's particular kind of pain will even respond to the morphine pump. In my husband's case, the morphine pump relieves about 50% of his pain -- occasionally more -- but his pain level is extremely high. RSD is horrendous.