A, Deformity correction in coronal plane. B, Sagittal plane. (Redrawn from Russell GV, Graves ML, Archdeacon MT, et al: The clamshell osteotomy: a new technique to correct complex diaphyseal malunions: surgical technique, J Bone Joint Surg 92A[Suppl 1 pt 2]:158, 2010.) SEE TECHNIQUE 58.12.