Cartilage allograft transplantation for challenging medial talar dome osteochondral defects: A retrospective case series utilizing medial malleolar osteotomy

Figure 1 Preoperative magnetic resonance imaging demonstrating osteochondral defect of the medial talar dome (Raikin zone 4). A: Coronal T2-weighted image showing the defect with surrounding bone marrow edema; B: Sagittal T2-weighted image demonstrating the depth and extent of the lesion; C: Axial T2-weighted image showing the medial location of the defect directly lateral to the medial malleolus.