For those of you who have no clue what PAO surgery is..

For those of you who have no idea what a periacetabular osteotomy is like I did at first.. here is the basics of it..

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, 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. Surgery normally takes 4-5 hours. Recovery usually involves 3-4 months of toe-touch weight bearing on crutches, followed by a gradual resumption of normal walking and extensive physical therapy. The orthopedic hardware may be removed in a subsequent operation.

PAO is generally performed to fix acetabular dysplasia or hip dysplasia, a congenital condition. Acetabular dysplasia normally goes undiagnosed until about your 20-30s. The average age for surgery is 22 years. Coincidence?

Some good links for more information are: (working on these... like I said, there is hardly any good and thorough info about this!)