The position of the aorta relative to the spine for pedicle screw placement in the correction of idiopathic scoliosis

Journal of Spinal Disorders & Techniques
Jiaming LiuYi-peng Wang

Abstract

An analysis of computed tomography (CT) images of patients with adolescent thoracic idiopathic scoliosis for posterior pedicle screw placement. To evaluate the relative position of the aorta to the spine by the axial CT scans in patients with right thoracic idiopathic scoliosis, and to discuss the safe trajectory and screw length for posterior pedicle screw placement. Posterior pedicle screw instrumentation and fusion are widely used in the correction of scoliosis. Pedicle screw placement in the thoracic spine implies risk of injuring the aorta. Literatures on the relative position of the aorta to the spine are mostly focused on the anterior surgery. However, few are reported about the posterior surgery. A total of 47 patients with adolescent right thoracic idiopathic scoliosis who underwent CT scan of total spine before surgery were included in this study. Transverse plane including bilateral pedicles, lamina, and transverse process was selected for measurement from T4 to T12. We defined a new coordinate system, and 5 parameters were measured in each vertebral body from T4 to T12 of the patients. The point where the left pedicle axial line and the base of the left transverse process intersected was defined as the origin of the...Continue Reading

Citations

Feb 13, 2016·Journal of Cardiac Surgery·Utkan SevukAylin Erkul
Dec 28, 2017·Asian Spine Journal·Chris Yin Wei Chan, Mun Keong Kwan
Feb 26, 2020·Journal of Orthopaedic Surgery and Research·Yan LiangHaiying Liu
Apr 15, 2021·Neurosurgical Review·Safwan AlomariAli Bydon

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