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Pittsburgh knee rules
Determines need for knee radiography after blunt trauma or a fall.
Pittsburgh knee rules
Mechanism: blunt trauma or a fall
Age
years
Unable to walk 4 weight-bearing steps in the ED
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When to use
- Excluding fracture after knee injury from blunt trauma or a fall.
Formula
For a blunt-trauma or fall mechanism, radiographs are indicated if age < 12 or > 50 years, OR the patient cannot walk 4 weight-bearing steps in the ED.