Authors: Simon Morr Alexandra Carrer Luis Ignacio AlvarezGarcía de Quesada Juan Carlos RodriguezOlaverri
Publish Date: 2015/01/20
Volume: 24, Issue: 7, Pages: 1473-1480
Abstract
We retrospectively reviewed pre and postoperative radiographs and selfreported outcome measures in an age and curvematched cohort of 40 patients with Lenke I AIS who underwent selective fusions between T3/4 and L1 Twenty patients were treated with thoracic pedicle screws at every level bilaterally CON and 20 patients with screws at every level on the concave side and skipped levels on the convex side of the curve SKP All patients had a minimum 2year followup Radiographs were assessed for coronal and sagittal curvatures as well as thoracic torsion and vertebral rotation Healthrelated quality of life was assessed using the SRS22 instrument Instrumentation cost data were collected for each casePostoperative followup averaged 28 months for the CON group and 29 months for the SKP group No statistically significant differences were found between groups with respect to age and pre and postoperative radiographic parameters Both constructs provided acceptable correction of the main thoracic curves 669 vs 666 CON group and SKP group respectively p = 092 and spontaneous correction of the proximal thoracic 415 vs 411 p = 092 and thoracolumbar/lumbar curves 548 vs 543 p = 092 No significant difference was found in postoperative SRS22 scores 96 vs 943 p = 034 The CON group cost for instrumentation was significantly higher than the SKP group 19500 vs 13300 p = 0002 There was no statistically significant difference in operating room times between groupsThe study was approved by the all internal review boards at involved institutions No copyrighted or patented materials were used or presented in writing this manuscript without proper reference The authors have not received grants or technical support in performing this study from any government or corporate entities
Keywords: