The study examines a broad range of proposed risk factors for DDH, including presentation at birth, parity, plurality, birth weight, maternal health factors, and delivery method. While established associations such as breech presentation, female sex, and pes equinovarus were confirmed, the study found that delivery by Caesarean section was not a risk factor for DDH when adjusting for confounders.

The findings contribute to a more nuanced understanding of the etiology of DDH and may inform future updates to screening protocols and clinical guidelines. The study also highlights the need for further research into genetic and environmental factors not currently captured in routine data collection.

The publication is the result of a collaborative effort involving HIPS researchers and colleagues from multiple institutions.

Citation:
Jacobsen KK, Kristiansen H, Gundersen T, Lie SA, Rosendahl K, Laborie LB. The epidemiology of hip dysplasia in the nationwide Norwegian Mother, Father, and Child Cohort Study. (ekstern lenke) Bone Joint J 2025;107-B(7):761–768. doi:10.1302/0301-620X.107B7.BJJ-2024-1555.R1