Seval Akgun, Professor¹, Cengiz Tuncay, AssocProf², Coskun Bakar, Specialist¹, and Rengin Erdal, Professor¹. (1) Department of Public Health, Baskent University, School of Medicine, 12. street. 7/8, 06490, Bahcelievler, Ankara, Turkey, 00-90-312-2120434, sevala@baskent-ank.edu.tr, (2) Department of Orthopedics and Traumatology, Baskent University, School of Medicine, 10.street. 06490, Bahcelievler, Ankara, Turkey

Developmental dysplasia of the hip (DDH) is estimated to occur in 4.1 out of every 1,000 not-at-risk boys and in 19 out of every 1,000 not-at-risk girls. When DDH is present at birth, the abnormality may be detected during a routine physical examination of the newborn. Consequently, radiography and ultrasonography (USG) are the imaging methods available for evaluating young children. In this study, we firstly examined 443 children up to 6 months and then orthopedist performed ultrasonographic hip examination. We accepted USG as reference test, and then the validity analyses of physical examination results of 443 infants had been done versus USG. 55.8% of the study group was female and 44.2% were male while 74.7 % of infants having DDH were female, 25.3% was male. This relationship was found to be statistically significant (p<0.05). 8.8 % of infants having DDH were determined as having family history. We haven’t found any relationship between breech delivery and having DDH. The validity analysis of physical examination versus USG showed that sensitivity, (+) predictive value, specifity and (-) predictive value of clinical assessment were 38.5 %, 39.8%, 84.9%, and 84.2% respectively. The algorithm specifically recommends that all infants be screened with a thorough physical examination, but ultrasonography of all infants is not recommended however sensitivity and (+) predictive value of physical examination versus USG were determined low in our study so we recommend to use USG for all risky infants while USG examination is non-invasive, repeatable, without risk, without risk of ionizing radiation or need for the contrast material administration and cheap.

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