[Congenital dysplasia of the hip. Preliminary results of a longitudinal study in the first 6 months of life].

The authors report their experience of a serial follow-up for congenital dysplasia of the hip (CDH). 699 babies born during a three-months period were examined on their first day of life, on the forth and at the age of 1 and 6 months. 2 dislocated hips, 222 clicking hips were discovered in the neonatal period. At the first month 1 dislocated hip and only 6 clicking hips were detected. At the sixth month all babies were normal with the exception of two clicking hips. X-ray examination confirmed clinical dislocation diagnosis and showed pathological signs (subluxation and acetabular dysplasia) also in normal and clicking hips. According to their results the authors suggest that clinical examination during the first 6 months of life and X-ray can decrease the incidence of late diagnosis of CDH.