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Orthopaedics & Trauma Emergency Medicine Strong — N Engl J Med 2003

Canadian C-Spine Rule

Determines need for C-spine imaging in alert, stable trauma patients. More sensitive and specific than NEXUS.

Age ≥65 / dangerous mechanism / paraesthesiae in extremities

Simple rear-end MVC / sitting position in ED / ambulatory at any time / delayed onset neck pain / absence of midline tenderness

Only assess if low-risk factor present and no high-risk factor

Score interpretation

No Imaging Required 0

Canadian C-Spine Rule: C-spine imaging NOT required. No high-risk factors, low-risk factor present, and able to rotate.

→ C-spine can be clinically cleared. Document assessment. Soft collar not routinely needed.

Imaging Required 1–99

Canadian C-Spine Rule: C-spine imaging REQUIRED.

→ Maintain C-spine immobilisation. CT C-spine (preferred over plain XR in significant mechanism). Ortho/Neuro review if abnormality found.

Interpretation bands for the Canadian C-Spine. Apply clinical judgement and local guidance.

References

Related

Curated clinical cross-links plus same-class fallbacks.

Decision support only — verify against a current formulary, NICE, or your local guideline before clinical use.