|The syndrome (collection of symptoms) is characterised by reduced range of motion, pain outside of normal, and taut shininess and mottling of the affected limb, which is abnormally sensitive to touch.|
Causes of complex regional pain syndrome
CRPS is a group of symptoms which occurs very uncommonly after injury or surgery or prolonged joint immobilisation, especially in young people and in which there is an abnormal response to the injury where the vascular and nervous systems respond inappropriately to injury.
Clinical features and pathophysiology of Complex Regional Pain Syndrome – current state of the art. Marinus J, Moseley L, Birklein F, Baron R, Maihöfner C, Kingery WS and van Hilten JJ. Lancet Neurol. 2011 Jul; 10(7): 637–648.