Researchers took axial CT images from 20 patients with complete proximal thoracic curve, 22 patients with fractional proximal thoracic curve and 14 normal patients to evaluate the changed relative positions of esophagus in proximal thoracic curves of adolescent idiopathic scoliosis patients.
Key findings include:
• Esophagus-vertebral angle was significantly smaller than that in the normal group
• EVA in the complete proximal thoracic group was significantly greater than in the normal group at each level.
• The esophagus was at a high risk of injury with right anterior penetrated TPS in the CPT group.
• Spine surgeons should choose appropriate pedicle screw length to avoid anterior cortical perforation in the PT region of AIS patients.
8 February 2012
7 February 2012
Written by Kathleen Roney | February 06, 2012
According to a study published in Spine, different anatomic patterns of proximal thoracic curves could cause different altered positions of the esophagus relative to the spine and result in different potential risks of esophageal injuries during thoracic pedicle screw insertion.