抄録
Between 1974 and 2002, eleven patients (1 male and 10 females) received a delayed diagnosis of congenital dislocation of the hip (CDH) 7 to 44 months (the average age 17 months) after birth. Four patients had not walked yet, and 7 patients had started walking at an average of 13.7 months after birth. Difficulty in walking was noticed in 7 patients. There were not limitations of hip joint abduction or asymmetry of thigh folds in half of the patients. It was concluded that other methods such as ultrasound screening were necessary to prevent overlooking CDH, since some patients with CDH were lacking of typical clinical signs.