肌张力异常代表累及运动系统的一组特殊疾病.Denny Brown确认是“一种固定或相对固定的形式,伴有其他锥体外系运动障碍.”张力异常的肌肉畸变为其主要表现,因缺乏特有的病理学特征,致使任何病理生理的解释都很困难.然而,除这种 Dystonia Brown is identified as a “fixed or relatively fixed form with other extrapyramidal movement disorders.” Abnormal muscle tone abnormalities as its main manifestation, due to abnormal muscle tone represents a group of special diseases involving the motor system. The lack of specific pathological features renders any pathophysiology difficult to interpret. However, in addition to this