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Table 2 Dimensions of spinal canal parameters at each level

From: Morphological study of the posterior osseous structures of subaxial cervical spine in a population from northeastern China

Level   SCTD SCLD OSCA
C3   22.3 ± 1.3 13.9 ± 1.2 225.1 ± 28.4
  F 21.7 ± 1.0 14.0 ± 1.4 221.0 ± 32.8
  M 22.7 ± 1.2 13.9 ± 1.0 227.7 ± 25.2
  DCS 22.1 ± 0.9 13.1 ± 1.0 214.8 ± 16.9
  NDCS 22.4 ± 1.4 14.2 ± 1.1 228.4 ± 30.6
C4   23.7 ± 1.7 13.5 ± 1.3 221.8 ± 29.1
  F 22.7 ± 1.5 13.6 ± 1.5 214.9 ± 34.2
  M 24.3 ± 1.6 13.5 ± 1.2 226.2 ± 24.7
  DCS 24.2 ± 1.5 12.6 ± 1.0 210.8 ± 20.3
  NDCS 23.5 ± 1.8 13.8 ± 1.3 225.3 ± 30.7
C5   24.8 ± 1.8 13.6 ± 1.3 229.1 ± 30.9
  F 23.9 ± 1.7 13.6 ± 1.4 219.8 ± 29.4
  M 25.4 ± 1.6 13.6 ± 1.3 235.2 ± 30.7
  DCS 25.0 ± 1.7 12.6 ± 1.3 211.9 ± 23.6
  NDCS 24.7 ± 1.9 13.9 ± 1.2 234.8 ± 31.2
C6   25.0 ± 1.8 14.0 ± 1.2 237.0 ± 31.4
  F 24.1 ± 1.5 13.7 ± 1.2 224.9 ± 30.1
  M 25.6 ± 1.7 14.2 ± 1.1 244.9 ± 30.1
  DCS 25.4 ± 1.7 13.1 ± 1.0 222.1 ± 25.1
  NDCS 24.8 ± 1.9 14.3 ± 1.1 241.9 ± 32.0
C7   24.4 ± 1.8 14.3 ± 1.3 231.1 ± 28.7
  F 23.7 ± 1.5 13.8 ± 1.0 218.2 ± 24.3
  M 24.9 ± 1.9 14.6 ± 1.3 239.4 ± 28.5
  DCS 24.8 ± 1.9 13.2 ± 1.2 219.5 ± 27.6
  NDCS 24.3 ± 1.8 14.6 ± 1.1 234.9 ± 28.3
  1. SCTD spinal canal transverse diameter, SCLD spinal canal longitudinal diameter, OSCA osseous spinal canal area, L left side, R right side, F female, M male, DCS developmental cervical stenosis, NDCS nondevelopmental cervical stenosis.