Curve correction effect of rigid spinal orthosis in different recumbent positions in adolescent idiopathic scoliosis (AIS): A pilot MRI study

W. C.W. Chu, Man Sang Wong, W. W. Chau, T. P. Lam, K. W. Ng, W. W.M. Lam, J. C.Y. Cheng

Research output: Journal article publicationJournal articleAcademic researchpeer-review

1 Citation (Scopus)


In this pilot cross-sectional study, the effectiveness of rigid spinal orthoses in the correction of spinal curvature of 14 patients with moderate adolescent idiopathic scoliosis (AIS) at different recumbent positions (supine, prone, right and left decubitus) was investigated. Using magnetic resonance (MR) imaging and multi-planar reconstruction technique, evaluation of the scoliotic spine in the coronal, sagittal and axial planes and the effect of spinal orthosis on AIS at different recumbent positions was studied. There was significant reduction of coronal Cobb's angle (p < 0.05) with bracing at all four recumbent positions and the maximal reduction was found in the prone position (18% reduction). The sagittal Cobb's angle was only significantly reduced at the supine position while the axial rotation did not change significantly in all positions.
Original languageEnglish
Pages (from-to)136-144
Number of pages9
JournalProsthetics and Orthotics International
Issue number2
Publication statusPublished - 1 Aug 2006


  • Adolescent
  • Correction
  • MRI scanning
  • Orthosis
  • Positions
  • Scoliosis
  • Spinal curvature

ASJC Scopus subject areas

  • Health Professions (miscellaneous)
  • Rehabilitation

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