Anterior-posterior resection of sacral tumor with computer navigation system

Previously O-arm Surgical Navigation System (Medtronic, USA) has been used for pedicle screw placement during spine surgeries [1]. Recently, O-arm was used for en bloc removal of sacral tumor through a posterior approach [2]. A partial or complete resection of a sacral tumor may result in loss of neurological functions due to close proximity of vascular, neural and visceral structures [3]. An 18-year-old male presented with a weakness in left lower extremity which worsened with gait. The MRI of the patient showed sacral mass causing compression of the left S1 and S2 roots. A surgery was planned with anterior and posterior resection. The computer navigation system is recommended for the safe removal of sacral tumor by aligning the anterior and posterior resection thus minimizing any post-operative neurological deficit.