A, Multiplane osteotomy of tibia for diaphyseal malunion. B, Severe deformity: 45 degrees of varus, 50 degrees of anterior bowing, 15 degrees of internal rotation, 1.4 cm of shortening, and distal tibiofibular synostosis. C–E, After osteotomy, correction of deformity. Lateral view shows minimal overcorrection in sagittal plane.