RESUMO
The aim is to determine the reliability and feasibility of using the system of selective ultrasound screening of children in groups at risk of DDH and to determine the peculiarities of the hip joints maturation. The hip joints were examined in 1539 children of the first year of life and 812 newborns. All children were divided into two groups to assess the effectiveness of the system of selective ultrasound screening of the hip joints, identified by clinical signs and risk factors DDH - with risk factors and (or) clinical signs of DDH and without risk factors and clinical signs of DDH. The study of the developmental characteristics of the hip joints is based on the analysis of sonographic indicators of the hip joints in children from birth to 10 months old. Also, to assess the hip joints at birth, all children who were examined in the maternity hospital were divided into four groups according to seasonality: those born in summer - 116, in autumn - 208, in winter - 282 and in spring - 206 people. The children underwent ultrasound examination of the hip joints according to R. Graf and determination of clinical signs and risk factors of DDH. Statistical processing was performed in Microsoft Excel and StatSoft Inc. STATISTICA. The obtained statistical data allow us to draw conclusions about the development and ossification potential of the acetabulum. A healthy hip joint has significant development potential in the first 3 months of life. The assessment of the condition of the hip joints of newborns in different seasons of the year showed that the discovered influence of seasonal factors on the development of the hip joints. Mean alpha angle values are lower in infants born in the winter and fall months and high in infants born in spring and summer. An insignificant correlation was revealed between risk factors and clinical signs of DDH and the state of development of the acetabulum in children of the first year of life. The expediency of the system of general ultrasound screening of the infants hip has been substantiated, given that when using the system of selective screening of risk groups, 12% (every eighth children) of DDH in children remains undiagnosed.
