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European Spine Journal

, Volume 16, Issue 10, pp 1579–1586 | Cite as

Transverse plane pelvic rotation in adolescent idiopathic scoliosis: primary or compensatory?

  • Jeff L. Gum
  • Marc A. Asher
  • Douglas C. Burton
  • Sue-Min Lai
  • Leah M. Lambart
Original Article

Abstract

Several studies have suggested that the pelvis is involved in the etiology or pathogenesis of adolescent idiopathic scoliosis (AIS). The purpose of this retrospective, cross-sectional radiographic study is to identify any correlation between the transverse plane rotational position of the pelvis in stance and operative-size idiopathic or congenital scoliosis deformities, using Scheuermann’s kyphosis and isthmic spondylolisthesis patients for comparison. The hypothesis tested was that the direction of transverse pelvic rotation is the same as that for a thoracic scoliosis. As a group, AIS patients had a significant transverse plane pelvic rotation in the same direction as the thoracic curve. When subdivided into the six Lenke curve patterns, this was true for the groups with a major thoracic curve: thoracic (1), double thoracic (2) and double curve patterns (3). It was not true for patterns with a major thoracolumbar/lumbar curve: single thoracolumbar/lumbar (5) and double thoracic-thoracolumbar/lumbar (6). Nor was it true for triple (4) curves. The Lenke 1 and 2 major thoracic curves without compensatory thoracolumbar/lumbar curves did not have the predicted pelvic rotation. All congenital scoliosis patients studied had main thoracic curves and significant transverse plane pelvic rotation in the same direction as the thoracic curve. There was no transverse plane pelvic rotation in the Scheuermann’s kyphosis or isthmic spondylolisthesis patients. We interpret these findings as consistent with a compensatory rotation of the pelvis in the same direction as the main thoracic curve in most patients with a compensatory thoracolumbar/lumbar curve as well as in patients with main thoracic congenital scoliosis.

Keywords

Adolescent idiopathic scoliosis Transverse plane Spinal deformity Pelvic rotation 

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Copyright information

© Springer-Verlag 2007

Authors and Affiliations

  • Jeff L. Gum
    • 1
  • Marc A. Asher
    • 1
  • Douglas C. Burton
    • 1
  • Sue-Min Lai
    • 2
  • Leah M. Lambart
    • 1
  1. 1.Department of Orthopedic SurgeryKansas University Medical CenterKansas CityUSA
  2. 2.Department of Preventive Medicine and Public HealthKansas University Medical CenterKansas CityUSA

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