[Three times hip fracture in a child with primary hyperoxaluria]

kidney stones and renal failure in low age groups. Changes in structure of bone in these patients included two types: bone oxalosis and renal osteodystrophia. The patient was a child aged 10 years old under dialysis due to renal failure. He had a fracture of femoral neck and two times subtrochanteric fracture. One of the most places for fracture in these patients is proximal of femur. Because of bone fragility in these patients, they should avoid heavy activities. Occurrence of fracture should be managed and followed carefully after surgery in these patients