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  • Title: [Incidence and development of noticeable hip findings (a dysplasia complex) in newborn and young infants].
    Author: Mau H, Michaelis H.
    Journal: Z Orthop Ihre Grenzgeb; 1983; 121(5):601-7. PubMed ID: 6649806.
    Abstract:
    Among 5338 infants in a DFG (German Research Association) priority program for prospective examination of pregnant women and neonates, asymmetry of the gluteal folds was found in approx. 12%. However this is of little diagnostic value for early diagnosis of hip dysplasia/luxation. The number of cases of restricted abduction found was even lower: in the period following birth it was 3.4%, from the 3rd to the 14th week. 12.7%. Ortolani's sign, including slightly positive and uncertain findings, was positive in 3.0% of the neonates; a hip dysplasia/luxation was diagnosed in 2.4% of the infants. The high percentage of suspected cases diagnosed, at 12.6%, is indicative of excessive diagnosis, even though this figure may already contain some oblique-presentation hips. Moreover, all the data are rendered relative by the differences in emphasis made by the 20 clinics taking part in the study; as a result the actual state and hence the uncertainty of early diagnosis of a hip dysplasia in practice are faithfully reflected. The results are compared with corresponding figures published by Barlow from a study of 9289 children.
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