Canadian C-Spine Rule

Indication for posttraumatic C-spine radiography

Step 1: Any high-risk factor that mandates radiography?

Yes = Radiography

Step 2: Any low-risk factor that allows safe assessment of range of motion?

No = Radiography

Step 3: Able to rotate neck actively?

No = Radiography


Stiell et al. The Canadian C-spine rule versus the NEXUS low-risk criteria in patients with trauma. N Engl J Med (2003) vol. 349 (26) pp. 2510-8