caa a22 4500 445831987 CHVBK 20180317145318.0 cr unu---uuuuu 170323e20110701xx s 000 0 eng 10.1007/s00586-011-1820-8 doi (NATIONALLICENCE)springer-10.1007/s00586-011-1820-8 Postoperative trunk shift in Lenke 1 and 2 curves: how common is it? and analysis of risk factors [Elektronische Daten] [Per Trobisch, Amer Samdani, Joshua Pahys, Patrick Cahill] The goal of surgical treatment for adolescent idiopathic scoliosis (AIS) is to achieve a solid fusion in a balanced spine. While many previous studies analyzed coronal balance, there is a paucity of studies that comment on postoperative trunk shift, which has shown to have impact on clinical outcome. The purpose of this retrospective, multicenter data analysis was to analyze the incidence of postoperative trunk shift in patients with surgical treatment for AIS. We conducted a retrospective, multicenter data analysis of 1,555 patients with AIS. Patients with a Lenke type 1 or 2 curve pattern and a minimum follow-up of 24months after surgery were included. A >2cm deviation of the trunk in relation to the pelvis was considered positive trunk shift. A subanalysis was performed to identify potential risk factors for trunk shift. 273 patients meeting the inclusion criteria were analyzed. While the preoperative prevalence of trunk shift was surgically reduced from 29.3 to 13.6%, 24 patients (8.8%) with postoperative trunk shift had not had preoperative trunk shift, and the trunk shift was considered iatrogenic. Undercorrection of the lumbar curve was identified as potential risk factor, whereas thoracic correction, coronal balance, angulation and translation of the lowest instrumented vertebra did not seem to influence postoperative trunk shift. Iatrogenic postoperative trunk shift has an incidence of 8.8% in the surgical treatment of AIS. Springer-Verlag, 2011 Adolescent idiopathic scoliosis nationallicence Trunk shift nationallicence Balance nationallicence Lenke type 1 and 2 curve nationallicence Lumbar curve correction nationallicence Trobisch Per Shriners Hospitals for Children, Philadelphia, 3551 North Broad Street, 19140, Philadelphia, PA, USA aut Samdani Amer Shriners Hospitals for Children, Philadelphia, 3551 North Broad Street, 19140, Philadelphia, PA, USA aut Pahys Joshua Shriners Hospitals for Children, Philadelphia, 3551 North Broad Street, 19140, Philadelphia, PA, USA aut Cahill Patrick Shriners Hospitals for Children, Philadelphia, 3551 North Broad Street, 19140, Philadelphia, PA, USA aut European Spine Journal Springer-Verlag 20/7(2011-07-01), 1137-1140 0940-6719 20:7<1137 2011 20 586 https://doi.org/10.1007/s00586-011-1820-8 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s00586-011-1820-8 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Trobisch Per Shriners Hospitals for Children, Philadelphia, 3551 North Broad Street, 19140, Philadelphia, PA, USA aut NATIONALLICENCE 700 1- Samdani Amer Shriners Hospitals for Children, Philadelphia, 3551 North Broad Street, 19140, Philadelphia, PA, USA aut NATIONALLICENCE 700 1- Pahys Joshua Shriners Hospitals for Children, Philadelphia, 3551 North Broad Street, 19140, Philadelphia, PA, USA aut NATIONALLICENCE 700 1- Cahill Patrick Shriners Hospitals for Children, Philadelphia, 3551 North Broad Street, 19140, Philadelphia, PA, USA aut NATIONALLICENCE 773 0- European Spine Journal Springer-Verlag 20/7(2011-07-01), 1137-1140 0940-6719 20:7<1137 2011 20 586 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer