Trimalleolar ankle fracture

Case contributed by Mohammad Osama Hussein Yonso
Diagnosis certain

Presentation

History of injury to right ankle and right leg due to fall at work place, today, local examination: no open wound, tenders on right ankle and lower leg.

Patient Data

Age: 40 years
Gender: Male
x-ray

Non-displaced fracture at the right medial malleolus.

Posterior malleolus fracture is noted with no significant displacement. 

Non-displaced fracture at the lower third of the shaft of the right fibula. 

Soft tissue shadows appear swollen.

Small calcaneal spurs.

Case Discussion

This is a simple non-displaced suprasyndesmotic fracture associated with an incomplete appearing medial malleolus fracture and a Volkmann (or posterior malleolus) fracture.

According to the AO/OTA classification this 44C1.3 or Weber C

According to Lauge Hansen, this is probably a pronation-exorotation injury Stage 4.

The treatment can be with immobilization in a plastic splint for 8 weeks.

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