Prevention of Hip Displacement in Children With Cerebral Palsy in Denmark

Migration percentage (MP) which is measured from the pelvis radiograph is commonly used to assess lateral displacement of the femoral head and is being used in the Swedish and in the Danish surveillance programme. Most children with an MP \> 40 % need surgery to prevent further displacement and prevent dislocation of the hip. In the Swedish surveillance programme they have developed the Cerebral Palsy Follow-Up Programme (CPUP) hip score as a risk score to determine which children are at high or low risk for hip displacement (MP \> 40 %) within five years after first radiographic examination. The aim of this study is to predict the likelihood that a child with cerebral palsy will develop hip displacement (MI\> 40) within three years. The design is a prediction study. Data will be obtained from the national clinical quality database the Danish Cerebral Palsy Follow-up Program and the Danish National Patient Register.