Abstract
Neuropathic pain is defined as pain initiated or caused by a primary lesion or dysfunction in the nervous system. It is found in many disorders including reflex sympathetic dystrophy (RSD) and causalgia. The motor abnormalities of dystonia, tremor and spasm associated with RSD or causalgia have been described in some reports. We reported two patients who had dystonia with neuropathic pain. One patient had fixed dystonic posture with persistent pain of the thigh and calf after hip surgery. This patient exhibited obvious changes of RSD in the foot. Another patient had suffered from Machado-Joseph disease and frequently fell down. This patient had fixed dystonic posture with neuropathic pain of the shoulder and upper arm after trivial trauma. Several therapies involving medication and sympathetic blocks were not effective. We tried to treat them with local blocks of the musculotendinous parts that were painful and dystonic followed by standard physical therapy. With our treatments, satisfactory control of pain and dystonia was achieved.
