*2.1.1 Acetabulum*

The three bones, the ilium, ischium and pubis, join each other centrally to form the acetabular cavity. The blood supply to the femoral head traverses through the cotyloid fossa and ligamentum teres in childhood. The horse shoe-shaped cartilaginous portion of acetabulum is the main region through which the weight is transmitted from lower limb to innominate bone [4–6].
