medial ligament complex pathology

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  • Less common compared to lateral ligament complex injuries.
  • Isolated medial ligament complex injury is RARE.
  • Usually associated with medial malleolar fracture or oedema,lateral ligament complex injury, fibular fracture, syndesmosis injury (in 10%).

Grade 1: Stretch injury
Grade 2: Partial tear
Grade 3: Complete disruption

  • Increased T2 signal of the ligament complex
  • Intermediate intersitital signal on T1 and PD, and increased T2 signal
  • Medial malleolus and medial talar oedema
  • Lateral talar oedema!!
  • Lateral or posterolateral talar displacement
  • Haemorrhage
  • Fluid filled gap = complete disruption
  • Dystrophic ossification (chronic)