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What is Salter's pelvic osteotomy is done for treatment of - and explain in detail?
Salter&;s osteotomy : * It is an acetabular reconstruction procedure - osteotomy of iliac bone ,above acetabulum .The roof of the acetabulum is rotated with the fulcrum at the pubic symphysis ,so that the acetabulum becomes more horizontal , & thus covers the head other procedure available are * Chiari&;s pelvic displacement osteotomy- the iliac bone is divided almost transversely immediately above the acetabulum ,& the lower fragment (bearing the acetabulum) is displaced medially. The margin of upper fragment provides additional depth to the acetabulum *Pembeon&;s pericapsular osteotomy - a curved osteotomy is made .The roof of the acetabulum is deflected downwards over the femoral head ,with the fulcrum at the triradiate cailage of acetabulum * in cases where reduction is possible only in extreme abduction or internal rotation of the thigh ,in such case a varus derotation osteotomy is done at subtrochanteric region .The distam fragment is realigned & the osteotomy fixed with a plate. REF:Essential ohopaedics, Maheshwari ,9th edition ,pg.no.223