Ottawa Ankle Rule Calculator
Clinical decision rule to determine if ankle/foot X-rays are needed after injury
Medical Disclaimer: This calculator is for educational purposes only and should not replace clinical judgment. Always consult with a qualified healthcare professional for medical advice and treatment decisions.
Ottawa Ankle Rule Calculator
Clinical decision rule to determine if ankle/foot X-rays are needed after acute injury
Ankle Series
Pain anywhere within 6 cm of the tip of either malleolus
Foot Series
Pain anywhere between the base of the 5th metatarsal and navicular bone
What is the Ottawa Ankle Rule?
The Ottawa Ankle Rule is a clinical decision rule used to determine whether patients with ankle or midfoot injuries require radiographic imaging to rule out fractures. It was developed to reduce unnecessary X-rays while maintaining high sensitivity for detecting clinically significant fractures.