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MRI Study on Spinal Canal Morphometry: An Indian Study.

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Summary

Cervical spinal canal measurements, including Torg's ratio and Space Available for Cord (SAC), show no significant gender differences in symptomatic adults. However, vertebral body diameter does exhibit sexual dimorphism, influencing Torg's ratio.

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Cervical regionSpace available for cordTorg’s ratio

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Area of Science:

  • Radiology
  • Orthopedics
  • Anatomy

Background:

  • Neck pain is prevalent in adults, often associated with altered spinal canal morphometry.
  • Factors like genetics and hormones influence spinal measurements, necessitating standardized metrics like Torg's ratio.
  • Spinal stenosis is a key contributor to neck pain, increasing the importance of measuring Space Available for Cord (SAC).

Purpose of the Study:

  • To analyze cervical spinal canal and cord morphometric determinants in symptomatic adults from North Bengal.
  • To compare these morphometric data with other global populations.
  • To investigate potential gender variations in Torg's ratio and determine SAC values in symptomatic individuals.

Main Methods:

  • Magnetic Resonance Imaging (MRI) was used to measure lower cervical spine (C3-C7) parameters.
  • Measurements included vertebral body diameter, spinal canal, spinal cord, Torg's ratio, and SAC.
  • Exclusion criteria included trauma, infection, neoplasia, congenital anomalies, and age below 18.

Main Results:

  • Males exhibited significantly larger average vertebral body diameters.
  • No significant gender differences were observed in spinal canal diameter, spinal cord diameter, Torg's ratio, or SAC values.
  • The mean Torg's ratio was higher in females, attributed to their smaller vertebral body size.

Conclusions:

  • Sagittal spinal canal diameter, Torg's ratio, and SAC values showed no significant gender disparity.
  • Sagittal vertebral body diameter demonstrated sexual dimorphism, impacting the mean Torg's ratio.
  • These findings contribute to understanding spinal morphometry variations in the sub-Himalayan population.