Findings: An AP view of the right foot demonstrates vascular calcification as well as lateral subluxation of the second through fifth metatarsals.

Diagnosis: Lisfranc fracture/dislocation of the foot.

Discussion: The Lisfranc injury is lateral dislocation of the metatarsals in relation to the cuneiforms. There are two types of Lisfranc fracture dislocations. The homolateral type describes lateral dislocation of the metatarsals in relation to the cuneiforms. The second form is known as the divergent type and is seen with lateral dislocation of the second through fifth metatarsals and medial dislocation of the first metatarsal.

The injury may be seen in patients with trauma as well as in those with diabetic neuropathy.

Reference:
Ford KL, 3rd, Pope TL, Jr. Aunt Minnie's Atlas in Imaging/Specific Diagnosis.
Williams and Wilkins, Baltimore; 1997:53.

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