Developmental Dislocation of the Hip Wheeless

Description: DDH involves displacement of the femoral head from the acetabulum (during the perinatal period) which disrupts the normal development of the hip joint;
- DDH is estimated to occur in 1 - 1.5 cases per 1000 live births;
- when an agressive screening system is in place (including routine use of ultrasound), it is not uncommon to have a prevalence of 5 / 1000 cases;
- in certain sub-populations, such as North American Indians, incidence can be as high as 35/1000.
Wheeless' Textbook of Orthopaedics