Birthweight correlates to pubo-femoral distances and α angles in hip ultrasound of newborns at 6 weeks of age - a retrospective cohort study

New publication in Acta Orthopaedica
There is inconsistency in the literature regarding the relationship between increased birthweight and risk of developmental dysplasia of the hip (DDH). 

Our retrospective cohort study highlights that although there is a correlation between increased birthweight and DDH ultrasound measurements, thus findings seem not to be of clinical significance due to small effect size. 

Increased birthweight may only be relevant in the context of a multiple-factor risk profile for DDH. Our results support the need for a multi-factorial approach towards risk assessment of DDH beyond the traditional risk/no risk factors. Additionally, it confirms the tight connection between the accessible pubo femoral distance measurement and the gold standard alpha angle in DDH ultrasound.


Maria Tirta
Hans-Christen Husum