Ottawa Ankle Rules

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4 Terms

1
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What is the Ottawa Ankle Rules?

  • Set of guidelines for clinicians to help decide if a patient with foot or ankle pain should be offered X-rays to diagnose a possible bone fracture.

  • Sensitivity of almost 100% and a modest specificity

  • Use should reduce the number of unnecessary radiographs by 30-40%.

  • A patient who presents with 0 of the symptoms is less than 1% likely to have a fracture.


2
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What are the Ottawa Ankle Rules?

  1. Bony tenderness along distal 6 cm of posterior edge of fibula or tip of lateral malleolus

  2. Bony tenderness along distal 6 cm of posterior edge of tibia/tip of medial malleolus

  3. Bony tenderness at the base of 5th metatarsal

  4. Bony tenderness at the navicular

  5. Inability to bear weight both immediately after injury and for 4 steps during intial evaluation


3
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What is the odds of a patient with 0 symptoms to have a fracture?

Less than 1% likely

4
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Using the OAR decreases the number of unnecessary radiographs by?

By 30 to 40 percent