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The effect of gestational age on sonographic screening of the hip in term infants.
MedLine Citation:
PMID:  23365040     Owner:  NLM     Status:  In-Data-Review    
Several authors have suggested that the final five weeks of gestation are a critical period for the development of the hip. In order to test the hypothesis that gestational age at birth may influence the development of the hip joint, we analysed the sonographic findings in 1992 hips (in 996 term newborns) with no risk factor for developmental dysplasia of the hip. The 996 infants were born at a mean gestational age of 39 weeks (37 to 41). The mean bony roof angle (α), cartilage roof angle (β) and the distribution of the type of hip were compared between the 37th, 38th, 39th, 40th and 41st birth week groups. There was a significant difference in the distribution of type of hip between the different birth week groups (p < 0.001), but no significant difference between the α angles of all groups (p = 0.32). There was no correlation between birth week and roof angle (p = 0.407 and p = 0.291, respectively) and no significant correlation between birth weight and roof angle (p = 0.735 and p = 0.132, respectively). The maturity of the infant hip, as assessed sonographically, does not appear to be affected by gestational age, and the fetal development of the acetabular roof appears to plateau from 37 weeks. Cite this article: Bone Joint J 2013;95-B:266-70.
S Uludag; A Seyahi; M M Orak; M G Bilgili; B Colakoglu; M Demirhan
Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Bone & joint journal     Volume:  95-B     ISSN:  2049-4408     ISO Abbreviation:  Bone Joint J     Publication Date:  2013 Feb 
Date Detail:
Created Date:  2013-01-31     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101599229     Medline TA:  Bone Joint J     Country:  England    
Other Details:
Languages:  eng     Pagination:  266-70     Citation Subset:  AIM; IM    
American Hospital, Department of Orthopaedics and Traumatology, Guzelbahce sok, No:20, 34365, Nisantasi, Istanbul, Turkey.
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