Mechanisms of action of intrathecal medications

Implantable drug delivery devices have become a mainstay in the management of patients with chronic pain disorders. The surgical technique for implantation is relatively simple and safe. A variety of device styles and types are currently available to meet the patient's specific needs. Several medications can be delivered via these devices, including morphine and baclofen. The future role of this approach continues to expand as the indications for and flexibility of these systems continue to advance.