Fig. 4

Case2, female, 41y, osteochondral lesions of left talus. A-C: preoperative imaging (X - ray and CT) supported the diagnosis; D-E: the lesion was exposed through the medial malleolus triplane osteotomy and AOT for OLTs from a non-weight-bearing area, and the donor defect was filled with a bone graft with periosteum from the tibia; F-I: at 1.5-year follow-up, imaging showed that the grafts had fused with the original bone in the talus, and the medial malleolus had achieved anatomic union