Ankle fracture: Difference between revisions

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## Stable: >90% have good clinical result  
## Stable: >90% have good clinical result  
### Treat like severe ankle sprain  
### Treat like severe ankle sprain  
## Unstable = displacement >2mm, medial fx, or medial ligament disruption
## Unstable: displacement >2mm, medial fx, or widening of medial clear space (deltoid injury)
#  Medial or posterior malleolar Fx
#  Medial or posterior malleolar Fx
## Must rule-out other injuries
## Must rule-out other injuries

Revision as of 23:44, 24 March 2012

Background

Imaging

  • Ottawa Ankle Rules
  • 3 views:
    • AP - Best for isolated lateral and medial malleolar fractures
    • Oblique (mortise) - Best for evaluating for unstable fracture or soft tissue injury
      • At a point 1cm proximal to articular surface of tibia the space between the tib/fib should be ≤6cm
    • Lateral - Best for posterior malleolar fractures

Classification (Danis-Weber System)

  • Type A (supination-adduction injury)
    • Fibular Fx at or below the joint line without syndesmotic involvement
      • A1: isolated
      • A2: medial malleolus fx
      • A3: posteromedial fx
  • Type B (supination-external rotation injury)
    • Fibular Fx at joint level w/ partial syndesmotic ligament injury
    • B1: isolated
    • B2: medial lesion (either malleolus or ligament)
    • B3: medial lesion and fx of posterolateral tibia
  • Type C (pronation-eversion injury)
    • Fibular Fx above joint level w/ complete syndesmotic disruption
      • C1: simple diaphyseal fibular fracture
      • C2: complex diaphyseal fibular fracture
      • C3: proximal fracture

Management

  1. Lateral malleolar Fx
    1. Stable: >90% have good clinical result
      1. Treat like severe ankle sprain
    2. Unstable: displacement >2mm, medial fx, or widening of medial clear space (deltoid injury)
  2. Medial or posterior malleolar Fx
    1. Must rule-out other injuries
    2. If non-displaced, isolated:
      1. Short-leg posterior splint (ankle at 90')
      2. Non-weight bearing
      3. Refer in 5-7d
  3. Lateral malleolar fx with deltoid injury OR bimalleolar OR trimalleolar fx
    1. Short-leg posterior splint (ankle at 90o)
    2. Immediate consultation in ED

See Also

Source

  • Tintinalli