discitis: Inflammation of an intervertebral disc or disk space which may lead to disk erosion. Until recently, discitis has been defined as a nonbacterial inflammation and has been attributed to aseptic processes (e.g., chemical reaction to an injected substance). However, recent studies provide evidence that infection may be the initial cause, but perhaps not the promoter, of most cases of discitis. Discitis has been diagnosed in patients following discography, myelography, lumbar puncture, paravertebral injection, and obstetrical epidural anesthesia. Discitis following chemonucleolysis (especially with chymopapain) is attributed to chemical reaction by some and to introduction of microorganisms by others.

Summary Statistics

Key figures

All Female Male
Number of individuals 54110 31461 22649
Unadjusted prevalence (%) 24.94 25.61 24.06
Mean age at first event (years) 49.04 48.51 49.78
Case fatality at 5-years (%) 1.77 1.28 2.45

Longitudinal metrics

All Female Male
Median nb. of events per indiv. 2.0 2.0 2.0
Recurrence at 6 months (%) 49.52 50.67 47.92

Survival analyses between endpoints


before Dorsopathies
after Dorsopathies

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