Congenital Hip Dysplasia- Congenital hip dysplasia is an abnormal formation of the hip joint in which the ball at the top of the thighbone (femoral head) is not stable in the socket (acetabulum). Also, the ligaments of the hip joint may be loose and stretched. The degree of instability or looseness varies. A baby born with DDH may have the ball of his or her hip loosely in the socket, the looseness may worsen as the child grows and becomes more active, or the ball may be completely dislocated at birth. Left untreated, DDH or Congenital hip dysplasia leads to pain and osteoarthritis
A periacetabular Osteotomy- "Periacetabular" means around the acetabulum. "Osteotomy" means to cut bone. In PAO, the patient's own joint is surgically altered to create a broader load-bearing surface. During the surgery, the acetabulum is sawed apart from the rest of the pelvis, in a few places and is repositioned to cover the head of the femur, and secured with metal hardware. If necessary, the head of the femur is repositioned by surgery on the femoral neck.
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