Unstable ankle injury

Case contributed by Dr Jeffrey Robinson

Presentation

Leg and ankle pain after being struck by auto

Patient Data

Age: 40
Gender: Male
X-ray

3V Ankle

Minimally comminuted fibular fracture with mild widening of the distal tibiofibular syndesmosis.

X-ray

Manual stress view

Further widening of the syndesmosis with complete disruption of the deltoid ligament, allowing lateral subluxation and valgus angulation of the talus with respect to the tibial plafond.

Fluoroscopy

Intraoperative spot radiograph

Screw-plate stabilization of the fibular fracture and trans-syndesmotic screw stabilizing the ankle mortise.

Case Discussion

Stress radiography determines the stability of the ankle joint. Using either gravity or manual technique, a stress view allows visualization of disrupted ligaments. This injury can be considered a Weber C fracture, which requires a stress view to complete the imaging evaluation.

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Case information

rID: 63518
Published: 7th Oct 2018
Last edited: 19th Aug 2019
Inclusion in quiz mode: Included

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