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Related Experiment Videos

Parameter variation in stable scoliosis

J E Pruijs1, C Stengs, W Keessen

  • 1Department of Orthopaedics, University of Utrecht, The Netherlands.

European Spine Journal : Official Publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society
|January 1, 1995
PubMed
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This study evaluated scoliosis measurement reliability over time. Cobb angle and trunk rotation measurements are reliable for long-term scoliosis follow-up, unlike moiré topography.

Area of Science:

  • Orthopedics
  • Medical Imaging
  • Biostatistics

Background:

  • Scoliosis measurement reliability is crucial for patient management.
  • Existing studies primarily focus on short-term, transversal variations.
  • Long-term reliability of scoliosis parameters in children needs further investigation.

Purpose of the Study:

  • To assess the longitudinal reliability of Cobb angle, angle of trunk rotation, and moiré topography in children with stable scoliosis.
  • To compare long-term parameter variations with established intra- and interobserver variations.

Main Methods:

  • Retrospective study of 41 children with stable scoliosis followed for at least 2 years.
  • Measurements included Cobb angle, angle of trunk rotation, and moiré topography.

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  • Statistical analysis using one-way analysis of variance.

    • Main Results:

    • Variations in Cobb angle and angle of trunk rotation measurements were comparable to short-term intra- and interobserver variations.
    • Moiré topography measurements (contour lines and angle determination) showed excessive variation, deeming them unreliable for follow-up.
    • Cobb angle and external trunk rotation demonstrated methodological validity for longitudinal assessment.

    Conclusions:

    • Cobb angle and external trunk rotation are reliable parameters for monitoring scoliosis progression over extended periods.
    • Moiré topography is not a reliable method for long-term scoliosis follow-up due to significant measurement variability.
    • Methodological validation supports the use of specific parameters for effective scoliosis patient management.