Dorsal avulsion fracture of navicular bone

Case contributed by Dr Bahman Rasuli

Presentation

Swelling and pain on the dorsal surface of the foot after a car accident.

Patient Data

Age: 55 years
Gender: Female

Dorsal avulsion fracture of navicular bone. Swelling of the overlying soft tissue, as well as the fact that the aspect of the avulsed fragment facing the navicular bone is not well-corticated support the diagnosis of an avulsion fracture rather than os supranviculare.

Case Discussion

Differentiation between avulsion fractures of the dorsal aspect of the navicular bone from os supranaviculare as a normal variant is important.

Correlation with the patient history and the tenderness location on physical exam is a key point in differentiation between these two conditions.

Avulsion fracture of the dorsal aspect of the navicular bone is usually associated with talonavicular ligament injury.

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Case information

rID: 61416
Published: 4th Jul 2018
Last edited: 14th Aug 2019
Inclusion in quiz mode: Included
Institution: Jame Jam Imaging Center

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