[Early therapy of congenital hip dislocation and ultrasonic studies of clinically positive cases--results of a prospective epidemiological study in Brünn].

The early diagnosis of CDH in CSFR an in other countries is discussed from different views. To our opinion only the orthopaedic surgeons are able to ensure the high sensitivity and specificity of the clinical tests. In the Brno-prospective epidemiologic study we have examined 19,879 neonates. The frequency of dislocation and instability was 368 cases (18%). The early treatment with Frejka pillow or Pavlik harness has failed only in one case. The systematic second (6 weeks) and third examination (3 months) discovered 19 late diagnosed cases (0.95%). In the era of conventional diagnosis the usual frequency of CDH in CSFR was 20-30%. The ultrasonographic examination of all neonates is not yet possible in our country; we have examined only clinically positive cases.