Rare Lateral Dislocation of the First Metatarsophalangeal Joint: A Case Report and Review of the Literature

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Traumatic lateral dislocations of the first metatarsophalangeal (MTP) joint are very rare. A 44-year-old male was referred after a motorcycle to car accident because of an exposed head of the left first metatarsal through a laceration on the medial aspect of the first MTP joint. Radiographs showed a lateral dislocation of the first MTP joint, with concomitant fractures of the neck of the second metatarsal and the base of the third and fourth metatarsal bones. The dislocation was reduced in the emergency department with the patient under conscious sedation after thorough irrigation. At the 1-year postoperative visit, the patient had full painless range of motion of the first and second MTP joints without any complaints. Lateral dislocation of the first MTP joint is an injury usually associated with fracture of the adjacent metatarsals and/or ligamentous injuries. It is easily reducible, with acceptable midterm outcomes.

Level of Clinical Evidence: 4

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