Developmental dysplasia of the hip (DDH) 

 

• A spectrum of conditions related to hip development in infants & young children
• Results from abnormal development of the acetabulum and proximal femur
• Results in mechanical instability of the hip joint 
• Left hip (3:1) vs Right
• Female sex (5:1)
• Breech presentation (20%)
• Family history of DDH
• Infants and young children with untreated hip dislocation rarely have pain or other limitations.
• Most affected children begin to walk and reach developmental milestones at the appropriate time.
• In cultures where tight swaddling with the lower limbs in extension is common, significantly higher rates of DDH have been reported.
• In South Australia 79% of those with DDH were tightly swaddled
• In Japan, when traditional swaddling was used, the incidence of DDH was 5%.
• A public campaign to switch to wrapping techniques encouraging hip flexion and abduction led to DDH rates falling to less than 0.4%.
• https://res.cloudinary.com/dbwozcf0d/images/f_auto,q_auto/v1589948650/10624649_794826423982877_5167788043433556178_n/10624649_794826423982877_5167788043433556178_n.jpg