Variant of Lisfranc injury: Floating second metatarsal, a rare isolated injury

A 35 year old man presented to our emergency department after a traffic injury. Radiographic evaluation showed plantar dislocation of the second metatarsophalangeal joint and dorsal dislocation at the second tarsometatarsal joint. Under general anesthesia, closed reduction of the metatarsophalangeal joint was performed, followed by percutaneous fixation with a Kirschner-wire, and immobilization in a plaster cast for 6 weeks. Isolated bipolar dislocation of the second metatarsal that did not correspond to any previously reported injury of the foot, is a variant of the Lisfranc. The foot should be carefully examined considering associated injuries, as isolated dislocation is extremely rare.