Emergency Medicine · Orthopedics
Ottawa Ankle Rules calculator
Enter the published formula inputs below to calculate and interpret this score.
Clinical inputs
Result
0
Neither ankle nor foot radiograph criterion met
The Ottawa rule does not indicate ankle or foot radiography.
Formula inputs
- Pain in the malleolar zone
- Bone tenderness at posterior edge/tip of lateral malleolus
- Bone tenderness at posterior edge/tip of medial malleolus
- Pain in the midfoot zone
- Bone tenderness at base of fifth metatarsal
- Bone tenderness over navicular
- Unable to bear weight for 4 steps both immediately and in evaluation
Primary source
Stiell IG et al. Decision rules for radiography in acute ankle injuries: refinement and validation. JAMA (1993)
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