[Early detection of hip dysplasia in the neonatal period].

Several risk factors are associated with an increased incidence of congenital hip dysplasia. Since the introduction of hip sonography the understanding of correlation between risk factors and US have been studied to decrease the prevalence of the deformity. Regression analysis and chi-square test were used to study the incidence of factors associated with congenital hip dysplasia. Positive family history, breech presentation, positive Ortolani manoeuvre, abduction deficit, asymmetric skin folds, feet or neuromuscular abnormities were compared to ultrasound examination. No significant correlation was found with any of the studied risk factors. Mild congenital hip dysplasia can be diagnosed only by ultrasound. It was found that 1.7% of congenital hip dysplasia are clinically asymptomatic and cannot be recognized without ultrasonographic screening.