Periacetabular osteotomy is a surgical procedure to treat a congenital hip condition called hip dysplasia. Hip dysplasia is either present from birth or develops in the first few months of life. Patients suffering from this condition have a shallow socket (acetabulum) of the hip joint.
Femoral derotational osteotomy (FDO) is a surgical procedure employed for the treatment of femoral torsion and a damaged/dislocated hip joint due to spasticity in children and adults. Femoral torsion is an inward turning of the femur (thigh bone) at the hip which causes an individual’s knees and feet to turn inward giving a pigeon-toed appearance.