Emergency Medicine · Trauma · Orthopaedics

Canadian C-Spine Rule calculator

Enter the published formula inputs below to calculate and interpret this score.

Clinical inputs

Age

years

Allowed range: 16–130 years

Paresthesias in extremitiesDangerous mechanismSimple rear-end motor-vehicle collisionSitting position in the emergency departmentAmbulatory at any timeDelayed onset of neck painNo midline cervical-spine tendernessAble to actively rotate neck 45° left and right

Result

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Clinical inputs

Age (years)Accepted range: 16 to 130
Paresthesias in extremities
Dangerous mechanism
Simple rear-end motor-vehicle collision
Sitting position in the emergency department
Ambulatory at any time
Delayed onset of neck pain
No midline cervical-spine tenderness
Able to actively rotate neck 45° left and right

Primary source

Stiell IG et al. The Canadian C-Spine Rule for radiography in alert and stable trauma patients. JAMA (2001)

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