In vivo passive axial rotational stiffness of the thoracolumbar spine

Victor Kosmopoulos, Joe Angel Lopez, James Mccain, Shrawan Kumar

Research output: Contribution to journalArticle

Abstract

The objective of this study was to report the passive axial rotational stiffness of the thoracolumbar spine in asymptomatic volunteers. A secondary objective was to investigate if an asymmetry exists between right and left axial rotational spine stiffness. Eighteen young asymptomatic volunteers, nine male and nine female, were tested using a previously validated axial rotational tester. Volunteers in this study were subjected to six moment magnitudes bilaterally, in a random order, and their passive axial spine rotation was measured. The results from this study showed that there is a statistically significant difference between the right (20.3 ± 5.8 Nm/rad) and left (17.4 ± 4.9 Nm/rad) axial rotational stiffness regardless of gender. This normative information regarding axial rotational spine stiffness can enable clinicians to assess the deviance in clinical samples and assist in treatment selection.

Original languageEnglish
Pages (from-to)1-4
Number of pages4
JournalOpen Spine Journal
Volume4
Issue number1
DOIs
StatePublished - 11 May 2012

Keywords

  • Axial spine stiffness
  • In vivo
  • Low back pain
  • Lumbar
  • Passive
  • Rehabilitation
  • Rotation
  • Thoracolumbar

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