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Evidence. Clarity. Practice.

© 2026 OrthoVellum. For educational purposes only.

Not medical advice. Verify clinically important information against current local guidance.

Back to Research
Level IVMust KnowSpineClassification System

Evidence brief

SLIC Classification

The Subaxial Cervical Spine Injury Classification System (SLIC)

Authors
Vaccaro AR, Hulbert RJ, Patel AA, et al
Journal
Spine
Year
2007

Key Findings

  • 1

    Similar philosophy to TLICS for cervical spine

  • 2

    Morphology: no abnormality (0), compression (1), burst (2), distraction (3), rotation (4)

  • 3

    DLC: intact (0), indeterminate (1), disrupted (2)

  • 4

    Neurology: intact (0), root injury (1), complete cord (2), incomplete cord (3)

  • 5

    Score <4: non-operative, =4: surgeon discretion, >4: operative

Clinical Implications

SLIC provides a standardized approach to subaxial cervical injuries, guiding treatment decisions and facilitating communication between clinicians.

Teaching Note

Know SLIC components and scoring. Differentiate from upper cervical injuries (different classification). Key: disco-ligamentous complex (DLC) assessment via MRI. Practice scoring common patterns: facet dislocation, burst fracture.

Citation

Vaccaro AR et al. The subaxial cervical spine injury classification system: a novel approach to recognize the importance of morphology, neurology, and integrity of the disco-ligamentous complex. Spine. 2007;32(21):2365-2374.

PubMed

Evidence Level

IV

Level IV

Case series or case reports

Topics

cervical fractureclassificationSLICtrauma

Related Topics

  • Cervical Spine Trauma
  • Facet Dislocations
  • Cervical Fractures

External Links

View on PubMed

Related Papers

IV

TLICS Classification

Vaccaro AR (2005)

IV

Denis Three-Column Concept

Denis F (1983)

IV

Lenke Classification AIS

Lenke LG (2001)

IV

Levine-Edwards Classification

Levine AM (1985)