Medical calculators
Ottawa Ankle
Need for X-ray
For education. Check every result.
Anatium is a study resource, not medical advice. Nothing here is a diagnosis, a prescription or a substitute for a clinician who has seen the patient. Check every number against a current local protocol before it touches anyone, and never act on a result you cannot reproduce yourself.
How it is calculated
The Ottawa rules exist to reduce unnecessary radiography and are close to 100% sensitive for clinically significant fracture. They are not validated under age 5, or where there is intoxication, distracting injury or reduced sensation.
About
Whether an ankle or foot injury needs an X-ray, using tenderness at specific bony points.
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