The sagittal resection is indicated for unilateral lesions from zones 2-5 or 8-11 in the Weinstein Boriani Biagini classification, with the lesion possibly involving the pedicle or transverse process. Again through a combined approach the vertebral body will be split in a sagittal plane, allowing for a clear margin from the lesion. Subsequently a separate approach is used to remove the posterior elements of the unaffected side, allowing for the en-bloc removal of the lesion containing hemi-vertebra.