Pathophysiology and treatment of phantom limb pain

Abstract

Introduction: Phantom limb pain may be present in up to 80% of patients subjected to amputation because of trauma or peripheral vascular disease. Several factors have been associated with its occurrence, including pre-amputation pain, the etiology, and the amputation level. Objective: To review the current status of the pathophysiological mechanisms, treatment options and their efficacy for the management of phantom limb pain. Method: Non-systematic review of the literature in PubMed and Cochrane, of articles describing the pathophysiology and treatment of phantom limb pain. Results and conclusions: The proposed pathophysiological mechanisms are still in research and include peripheral, central and psychological factors. Treatment options are still limited, and less than 10% of patients report long-term improvement. © 2013 Sociedad Colombiana de Anestesiología y Reanimación.