Ottawa Knee Rule
Ottawa Knee Rule - a deterministic tool in Sophie Well's Clinical Scoring & Risk group.
Open the Ottawa Knee Rule → Runs in your browser. No signup, no tracking.
What this is
Ottawa Knee Rule is one of 230 deterministic tools in Sophie Well's Clinical Scoring & Risk group. Ottawa Knee Rule - a deterministic tool in Sophie Well's Clinical Scoring & Risk group.
When to use it
Use this tool when you need a quick, citable reference. Every calculation runs entirely in your browser - no inputs leave your device, no account is required, no AI is involved. The site enforces a strict Content Security Policy and ships no analytics or third-party CDN.
References
Stiell IG, et al. Ann Emerg Med. 1995;26(4):405-413 (Ottawa Knee Rule); 1997 validation. X-ray indicated if any of 5 criteria present. Read the source ↗
Worked example: At least one criterion present: knee x-ray indicated.
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