Chronic pain (CP) is a clinical condition characterized by pain and suffering beyond the stipulated time of healing often leading to treatment failures. 1,2Even in the presence of acute pain neuronal changes ensue, however the structural and functional abnormalities of chronic pain extend beyond the boundaries of a peripheral organ dysfunction.
With the advent of the biopshychosocial model of assessment and treatment, therapists understanding of chronic pain have evolved tremendously. With growing research evidence it has been proved that the brain is responsible for the perpetuation and maintenance of pain in these patients. With brain being the sole responsible organ for chronic pain therapists now target interventions which modulate or synchronize abnormal neuronal firing pattern. Numerous interventions have been developed over the years for the treatment of prominent chronic pain syndromes such as complex regional pain syndrome and phantom limb pain.
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