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Based on a review of the literature, the authors have made a critical study of several etiological factors. Endogenous factors such as acetabular dysplasia, increased anteversion of the femoral neck, and capsular laxity support the genetic theory but are neither constant nor necessary and are only facilitating factors. The major factor seems to be a mechanical one linked to the position in the uterus: hyperflexion with adduction and external rotation constituting the dislocating foetal posture combined with abnormal pressure on the greater trochanter and leading to expulsion of the head upward and backward. This theory can explain the natural history of C D H which is first, at birth a hip instability followed by two possible evolutions: either persistent luxation becoming irreducible or spontaneous stabilisation leading sometimes to complete healing or to residual abnormalities (subluxation or dysplasia). This concept suggests practical conclusions: the importance of an early diagnosis, the selection of the signs of the hip at risk, the pattern of prevention, the role for non-clinical investigations, the principles of the treatment based on postures, the indications for the different types of treatment.Le texte complet de cet article est disponible en PDF.
Keywords : Hip, Congenital dislocation, Natural history, Pathogenesis
|☆|| Review article. For citation, use not the present reference but that of the original publication: Seringe R, Bonnet JC, Katti E. [Pathogeny and natural history of congenital dislocation of the hip] Rev Chir Orthop Reparatrice Appar Mot 1990;76(6):391–402.