2022 Volume 13 Issue 11 Pages 1206-1211
Introduction: This study investigated the changes in the shape of vertebral body near to the aorta after posterior corrective fusion surgery for adolescent idiopathic scoliosis (AIS).
Methods: Among 120 patients who underwent AIS surgery in our department between January 2015 and December 2016, 42 patients (2 males and 40 females) with a mean age 15.5 years, and a mean main curve Cobb of 50.4° who underwent computer tomography (CT) scanning immediately after surgery and again two years later were retrospectively studied. Two year after the surgery, the vertebral body was considered to be deformed if the anterior surface of the vertebral body was depressed by ≥2 mm in a crescent shape on CT.
Results: Vertebral body deformity was present in 20 out of 42 patients (47.6%; all females). Lenke 5 and 6 had vertebral body deformity in all cases. The pre- and postoperative thoracolumbar lordosis was significantly greater in patients with deformed vertebrae than in patients without deformed vertebrae.
Conclusions: The vertebral body, particularly the thoracolumbar vertebrae, may deform and become depressed after AIS surgery; therefore, the length of implants, such as pedicle screws, should be carefully considered.
