Developmental Dysplasia of the Hip (DDH) encompasses a spectrum of hip joint abnormalities in infants—ranging from mild hip socket (acetabular) shallowness to complete dislocation of the femoral head from the pelvic socket.

Because infants with DDH rarely display pain or visible distress, routine neonatal physical examination and targeted ultrasound screening are vital to preserve normal joint development and prevent early-onset arthritis.

High-Risk Factors for DDH

While any infant can develop hip dysplasia, certain factors increase risk:

  • Breech presentation at birth: Particularly during the third trimester.
  • Family history of DDH or early hip replacement.
  • First-born female infants: Due to maternal hormone sensitivity affecting ligament laxity.
  • Oligohydramnios (low amniotic fluid) or congenital foot deformities.

Clinical Warning Signs for Parents

  • Uneven thigh or groin skin folds: Asymmetrical creases when the baby lies on their back.
  • Clicking or clunking sensation in the hip: Often noted during diaper changes.
  • Limited hip abduction: One leg does not open outward as widely as the other.
  • Limping or waddling gait in walking toddlers: In older children where early infancy diagnosis was missed.

Diagnostic Protocol

  1. Physical Examination: Specialist clinical tests (Barlow and Ortolani maneuvers) performed by an experienced pediatric orthopedic surgeon.
  2. Dynamic Hip Ultrasound (Graf Method): The gold standard diagnostic tool for infants under 6 months of age, providing clear imaging before the hip cartilage ossifies into bone.
  3. Pelvic X-rays: Performed in infants older than 4 to 6 months once the femoral head ossification center is visible.

Treatment Pathways

  • Pavlik Harness (0 to 6 Months): A gentle, dynamic harness that holds the infant’s hips in flexion and abduction, allowing the natural socket to deepen and stabilize without surgery. Success rates exceed 90% when initiated early.
  • Closed Reduction & Spica Casting: Used when harness treatment is delayed or unsuccessful, gently positioning the hip under anesthesia.
  • Open Surgical Reduction & Pelvic Osteotomy: Indicated for older toddlers to surgically reconstruct the socket and ensure lasting joint stability.

“Early diagnosis in the first months of life turns a potentially crippling condition into a completely resolved, healthy hip joint.”