The Denis classification is a system of categorizing sacral fractures.[1]

Classification

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Zone Description
I Fracture lateral to the sacral foramen
II Fracture through the sacral foramen
III Fracture medial to the sacral foramen extending into the spinal canal

References

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  1. ^ Denis F, Davis S, Comfort T (Feb 1988). "Sacral fractures: an important problem. Retrospective analysis of 236 cases". Clin Orthop Relat Res. 227: 67–81. PMID 3338224.