We prospectively examined the effect of pedicle screw placement at a young age (<5 years) for early-onset spinal deformity on the growth and development of pedicles and the spinal canal. Patients with early-onset deformity who received pedicle screw placement before the age of 5 years and had preoperative and final follow-up axial imaging were included. To increase sample size, patients who had the same criteria but with no preoperative axial images were also included. Anteroposterior and transverse diameters of the canal and pedicle length were measured on axial images cutting through the middle of the pedicle (figures 1 and 2).Introduction
Methods
