Tests for Developmental Dysplasia of the Hip

Tests for Developmental Dysplasia of the Hip

This illustration shows the Barlow maneuver (left) and the Ortolani maneuver (right), which are used to diagnose developmental dysplasia of the hip in infants. If the hip can be dislocated using the Barlow maneuver, the test is considered positive. The Ortolani maneuver is used to demonstrate that the hip has been dislocated and to reduce the dislocated hip into the acetabulum.

JEANETTE ENGQVIST/SCIENCE PHOTO LIBRARY