Extensor digitorum brevis avulsion

Case contributed by Maulik S Patel
Diagnosis certain

Presentation

History of the left ankle twist about 10 days back. Complaining of left hindfoot anterolateral aspect pain.

Patient Data

Age: 35 years
Gender: Female

There is a bone flake abutting lateral aspect of distal part of the calcaneum. There is no dislocation/bone lesion.

Annotated image

There is a bone flake (arrowheads) abutting lateral aspect of distal part of the calcaneum.

ultrasound

There is an avulsion from calcaneum at the origin of extensor digitorum brevis muscle. There is another avulsion fracture from cuboid at cuboid - 5th metatarsal joint. Anterior talofibular and calcaneofibular ligaments are normal.

Case Discussion

A female presented with left ankle injury followed by local pain. Radiograph and ultrasound show avulsion of extensor digitorum brevis from the calcaneum. Ultrasound reveals an additional finding - an avulsion fracture from the cuboid. Lateral ankle ligaments are normal.

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