Fig. 1From: Modified osteochondral autograft transplantation for steroid-induced osteonecrosis of femoral head in idiopathic thrombocytopenic purpura: a case report and literaturea The necrosis area. b a 1.5 × 1.5 cm area was debrided. c, irrigating the recipient site. d harvesting the autograft from the donor site. e harvesting the cancellous bone from the greater trochanter. f the completed OAT on femoral headBack to article page