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(A) Lateral radiograph of a 13-year-old boy shows a large lateral condyle juvenile OCD lesion (arrow) 6 months after failed transarticular drilling and before allografting. (B) Lateral radiograph of the same patient’s knee at 6 weeks after allografting shows a clear demarcation of the 2.2 cm × 2.7-cm allograft (arrow). (C) Lateral radiograph of the same patient’s knee at 28 months postallografting shows complete allograft incorporation and no graft margins visible (arrow).
