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Authors reviewed the literature about the nomenclature and classification of ligamentous laxity syndrome. They are using the term "Generalized ligamentous laxity". They prefer the methods, with total body points-system to the extensometry of the fingers. On the basis of 890 healthy children they determined the statistic characteristics of the score of the generalized ligamentous laxity in relation to age and sex. They suggest, on the basis of the obtained data, the way of clinical application.

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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.