What is complex regional pain syndrome?
CRPS is a clinical disorder characterized by spontaneous or stimulus-induced pain that is out of proportion to the provoking event and is accompanied by autonomic, sensory, and motor disturbances. There are two types: CRPS 1 and CRPS 2. By definition, CRPS 1 is not associated with previous nerve injury, and represents the current terminology for the condition previously referred to as reflex sympathetic dystrophy. CRPS 2 is associated with previous nerve injury and represents the current terminology for the condition previously referred to as causalgia.
