[Treatment, at birth, of luxating deformities of the hip. Difficulties, failures and complications. Discussion apropos of coxa vara deformities].

The author has studied 400 newborn babies thought to have unstable hip. The importance of careful clinical and radiological examination is emphasized. An abduction splint must be applied with caution and serial radiographs taken until the hip is normal. In spite of this, one instance of coxa magna, three of osteochondritis and five of coxa vara were found. A classification of coxa vara is suggested to distinguish concordant types compatible with normal hip function from other types.