If pain is limited to the spine an intrathecal spinal pump can be used to deliver medication directly into the spinal fluid.
Normally, for an adequate amount of pain medication to reach the spinal fluid it must be given in great quantities, causing significant side effects. As an alternative the intrathecal spinal pump can be implanted under the skin in the side of the abdomen with a catheter extended to the precise location of the pain in the spine.
Medication is then provided directly into the spinal cord. This method reduces the amount of medication required and thus the medical side effects.
Pump candidates include people for whom other treatments have failed and surgery is not likely to help.
[Source: viewmedica.com, swarminteractive]