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(A) Radiograph of a 19-year-old patient showing Ficat-Arlet stage II avascular necrosis (AVN) right femoral head and stage III AVN left femoral head at the commencement of therapy. (B) Radiograph at year 4 of follow-up demonstrating no radiologic progression of the AVN stage on both the sides. (C and D) Patient is able to squat and sit on a low stool, showing no limitation of daily activities.
