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Table 4 Pain response according to grade of annular disruption in 16 HIZ discs studied by CT discograms

From: Factors associated with lumbar disc high-intensity zone (HIZ) on T2-weighted magnetic resonance image: a retrospective study of 3185 discs in 637 patients

Pain reproduction Disruption gradea Total
0 1 2 3 4
Positive 0 0 0 1 8 9
Negative 0 0 0 6 1 7
Total 0 0 0 7 9 16
  1. aModified Dallas discogram scale
  2. +P = 0.009 (Fisher’s exact test)