- 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%).
Grading:
Grade 1: Stretch injury
Grade 2: Partial tear
Grade 3: Complete disruption
MR:
- 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)
