title: Comparison of intraoperative supine and postoperative standing radiographs after posterior instrumentation for adolescent idiopathic scoliosis.
abstract: The utility of intraoperative radiographs after posterior spinal segmental instrumentation for adolescent idiopathic scoliosis (AIS) is debatable. A retrospective review of 74 patients with moderately severe AIS revealed the main thoracic Cobb measurements of 57° preoperatively, 17° intraoperatively, 18° on initial postoperative, and 20° on final postoperative radiographs. On the basis of the extent and type of instrumentation (pedicle screws vs. hybrid construct), there was no clinically significant difference in curve magnitude between intraoperative and postoperative radiographs. After posterior segmental instrumentation for moderate AIS, frontal plane correction measured on intraoperative supine radiographs are comparable with similar measurements made on full-length postoperative standing radiographs.
authors.affiliation: Department of Orthopedics, New Jersey Medical School, Newark, New Jersey 07103, USA. sabharsa@umdnj.edu
authors.forename: Sanjeev
authors.initials: S
authors.lastname: Sabharwal
authors.forename: Alexios
authors.initials: A
authors.lastname: Apazidis
authors.forename: Caixia
authors.initials: C
authors.lastname: Zhao
authors.forename: Heidi
authors.initials: H
authors.lastname: Hullinger
authors.forename: Michael
authors.initials: M
authors.lastname: Vives
mesh_terms: D000293:Adolescent; D002648:Child; D005260:Female; D006801:Humans; D007432:Intraoperative Period; D008297:Male; D019637:Orthopedic Procedures / Q000295:instrumentation*; D011187:Posture; D011859:Radiography; D012189:Retrospective Studies; D012600:Scoliosis / Q000601:surgery*; D013904:Thoracic Vertebrae / Q000000981:diagnostic imaging; D055815:Young Adult