Cerebral palsy and Fibrosis of gluteals muscle represented 88% and 2.8% respectively, the rest 5.4% included spinal injury, myopathy, congenital deformity, congenital hip dislocation, amputation etc.

• 在所有病人中，一侧下肢肌肉麻痹最多，共有2；303例(32.；9%25)、两侧下肢肌肉麻痹者2；024例(28