Introduction: Development disorder of the hip is a congenital, dynamic and progressive disease where there is disorder in the development of all elements of hip that is clinically shows as functional disorders. Aim: To determine clinical and statistical arthrosonographic representation of developmental disorders of the hip at newborn babies in Tesanj region, with or without risk factors. Material and methods: The subjects are 300 newborns born in Tesanj region, which are examined in the orthopedic clinics in the period from October 1st 2008 to May 1st 2009. Results: the youngest child in the studied sample had an examination in the first nine and the oldest 42 days, an average of 33 days. In the studied sample representation of the firstborn children was 179, and second born children 97, third born 23. Only one child was born from the fourth pregnancy. Positive family history had 26 children and negative 274. Natural way was born four children, by Caesarean section 51 children. One child was born early but naturally. On time 244 children were born by normal natural way. Of firstborn children, the representation of female children was 80, and the male 99. 6 children were born as twins. Associated anomalies were found in two of the examined children; agenesis of fibula and pes equinovarus. One risk factor had 113 children, two 27 and three risk factors at one child. The remaining 159 children had no risk factor for a developmental disorder of the hip. Discussion: Developmental disorder of the hip is the most common developmental anomaly, which occurs in all races and ethnic groups, ranging from 0.4% to 6%. It is more common in female than male children in the ratio of 1:4 to 1:10. Mutual disorder appears more than one-sided reports. Sided phenomenon affecting more left than right hip. Developmental disorder of the hip is often associated with other developmental abnormalities. Early detection of initial disturbances in newborn is crucial, because of using of early traumatic therapy, which reduces the incidence of operative treatment and secondary complications. Conclusion: Developmental hip disorders in children in Tesanj region, defined by hip sonography Graf, were found in 4.33% cases. If the borderline cases of type I by Graf included in the category of children with possible spontaneous evolution from type I to type II (no prevention measures), the incidence of RCC would be 10.66%. Almost half of children (141) of the investigated sample have a risk factor in the anamnesis. Remarkably high percentage of children born caesarean. The greatest correlation of risk factors, was determined in children with a positive family history, were born with abnormalities of the loco motor apparatus and natural way of born.
Key words: Developmental disorders of the hip, sonography