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Effect of direct vertebral body derotation on the sagittal profile in adolescent idiopathic scoliosis

PURPOSE: We sought to clarify the effect of applying derotation maneuvers in the correction of adolescent idiopathic scoliosis (AIS) on the sagittal plane. METHODS: We retrospectively queried a large, multicenter, prospectively collected database for patients who underwent surgical correction of AIS. All patients had at least 2 years of follow-up and documentation as to whether or not a derotation maneuver was performed during surgery. All patients underwent posterior spinal fusion with pedicle screw constructs. Patients who underwent concurrent anterior procedures were excluded. RESULTS: A total of 323 patients were identified, of whom 66 did not have direct vertebral body derotation (DVBD) maneuvers applied during the deformity correction. The remaining 257 had a vertebral body derotation maneuver performed during their surgical correction. Although no significant differences were identified between the two groups when comparing pre-op and post-op thoracic kyphosis using T2-12 and T5-12 endplates, the absolute change in angulation measured from T2-12 was significantly different between the two groups. Postoperatively, the derotation group had a mean decrease in thoracic kyphosis of 5.1+/-15.3 degrees as compared to 10.8+/-18.9 degrees in the control group, P = 0.03. CONCLUSION: Although patients in both groups had decreased mean thoracic kyphosis postoperatively, application of DVBD in the correction of scoliosis did not additionally worsen the sagittal profile

Keywords : Adolescent,adverse effects,Child,Cohort Studies,diagnostic imaging,Female,Hospitals,Humans,instrumentation,Kyphosis,Male,methods,pathology,Patients,Philadelphia,Radiography,Reconstructive Surgical Procedures,Retrospective Studies,Rotation,Scoliosis,Spinal Fusion,surgery,Thoracic Vertebrae,, Direct,Vertebral,Body,Derotation, gout specialist london

Date of Publication : 2012 Jan

Authors : Hwang SW;Samdani AF;Gressot LV;Hubler K;Marks MC;Bastrom TP;Betz RR;Cahill PJ;

Organisation : Department of Orthopedic Surgery, Shriners Hospitals for Children-Philadelphia, 3551 North Broad Street, Philadelphia, PA, 19140, USA. stevenhwang@hotmail.com. stevenhwang@hotmail.com

Journal of Publication : Eur Spine J

Pubmed Link : https://www.ncbi.nlm.nih.gov/pubmed/21874624

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