Traumatology and Orthopedics of RussiaTraumatology and Orthopedics of Russia2311-29052542-0933Vreden National Medical Research Center of Traumatology and Orthopedics162610.17816/2311-2905-1626Research ArticleUltrasonographic Assessment of the Proximal Femoral Ossification Center in Children Under 1 YearBabaevaKhalida B.<p>MD</p>xalidababayeva.xb@gmail.comhttps://orcid.org/0000-0001-9974-1631PolukhovRamiz Sh.<p>MD, Dr. Sci. (Med.), Professor</p>ramizpoluxov@mail.ruhttps://orcid.org/0000-0003-2256-7086Azerbaijan Medical University1501202228158661904202111012022Copyright © 2022, Babaeva K.B., Polukhov R.S.2022<p><strong><em>Background. </em></strong>Developmental disorders of the secondary ossification center (SOC) of the proximal femoral epiphysis can be a marker of some childhood diseases that require timely diagnosis and treatment.</p>
<p><strong><em>The study aimed</em></strong> to assess the capabilities of ultrasonography in the diagnosis of ossification processes of the proximal femoral epiphysis.</p>
<p><strong><em>Material and Methods. </em></strong>The study is based on the results of a survey of 524 children aged 2 weeks to 1 year with normal hip joints, including 259 boys and 265 girls. All patients underwent ultrasound examination of the hip joints according to the method of R. Graf in a standard coronary section. In older children, to eliminate errors in measuring the size of the SOC, an additional cross-section was used.</p>
<p><strong><em>Results. </em></strong>The SOC was detected in isolated cases in boys aged up to 3 months and girls up to 2 months. At age 3 months, the SOC was visualized in 45% of girls and 5% of boys. By age 5 months, 81% of girls had a SOC compared with 46% of boys. By 7 months, SOC was determined in more than 90% of cases of both groups. Thus, girls showed an earlier formation of the SOC than boys. The SOC was located in the center of the femoral head in 82% of cases, lateral in 14%, and medial in 4%. In 95% of the examined children, SOC development occurred symmetrically in both joints. In addition, discrepancies were revealed with simultaneous ultrasonography and X-ray of the hip joints since the SOC becomes visible earlier during ultrasonography.</p>
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