University of Iowa
Department
of Family Medicine
FPInfo: Resources to support patient
care
General Clinical
Resources - Clinical Scoring and Decision Rules - Ottawa ankle and foot rule
OTTAWA ANKLE RULES
for Ankle Injury Radiography


- An ankle x-ray series is only
required if there is any pain in malleolar zone and any of these findings:
- bone tenderness at A
OR
- bone tenderness at B
OR
- inability to bear weight both immediately and in the emergency
department
- A foot x-ray series is only required if there is any pain in midfoot
zone and any of these findings:
- bone tenderness at C
OR
- bone tenderness at D
OR
- inability to bear weight both immediately and in the emergency
department
Stiell IG, McKnight RD, Greenberg GH, et
al. Implementation of the Ottawa Ankle Rules. JAMA 1994;271:827-32.
Ottawa Knee Rule
