Fig. 6. Bone plug harvest and transplantation. (A) A bone plug matching the size of the osteochondritis dissecans lesion was harvested without damaging the periosteum. (B) The harvested iliac crest plug with periosteum preservation was inserted into the lesion of the lateral femoral condyle and impacted. (C) The press-fitting mortise wider and deeper at the articular surface was used during graft insertion.