The hips of infants with DDH are unstable and either pop in and out with movement, or may be very loose on examination.
Treatment consists of a Velcro harness from the chest down to the legs, which keeps the hips in a frog-like position. The hips are spread out and the knees are bent. This harness is known as a Pavlik harness. It is effective in over 87 percent of babies with DDH, but must be worn full time for an average of six to twelve weeks.
The stability of the hip is routinely checked by clinical exams as well as by ultrasound.
Those babies whose hips do not improve with the Pavlik harness may need surgery.