Unexpected localization of a thoracic pedicle screw nearby the aorta after scoliosis surgery

Abstract

The pedicle is the structure that connects the anterior column with the middle and posterior column. Because the pedicle screw passes through the vertebral pedicle and extends to the anterior column, it is a solid stabilization technique that covers all three columns and a method that has a wide range of use from spinal deformity to degenerative spine and tumors.[1] Since the screw also passes through the inner column, the surrounding structures are at risk. The most important of these structures is the spinal cord. The thoracic region, particularly the azygos vein, intercostal artery, inferior vena cava, and aorta, and the iliac arteries in the lumbar region are at risk. Vascular injuries are a rare but substantial complication of spinal surgery.[2]