Complex regional pain syndrome type I (CRPS-I), formerly known as Reflex Sympathetic Dystrophy, can occur after a trauma to an arm or leg. CRPS is frequently seen after wrist fractures. The diagnosis of CRPS is based on clinical signs and symptoms. According to Veldman et al. it is characterized by unexplained diffuse pain, differences in skin colour and temperature relative to the other limb, diffuse oedema, and limited active range of motion. These signs and symptoms occur or increase after...