Mechanism of injury
- The foot is usually dislocated medially (80%) and superiorly, which occurs when the foot is plantar flexed and inverted.
- Lateral displacement occurs during eversion injuries.
- Associated fractures of calcaneus, cuboid and navicular are frequent.
- Open fractures occur in a small percentage.
Diagnosis and treatment
Diagnosis is made on plain radiograph of the foot, although the extent of injury is often underestimated.
Treatment comprises early reduction of the dislocation, and frequently involves open reduction internal fixation to restore and stabilise the talonavicular joint. Open reduction and fusion of the calcaneocuboid joint is occasionally required.
- Chopart's Fracture Dislocation at LearningRadiology.com
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- Richter, M; Wippermann B; Krettek C; Schratt HE; Hufner T; Therman H (May 2001). "Fractures and fracture dislocations of the midfoot: occurrence, causes and long-term results". Foot Ankle Int. 22 (5): 392–8. PMID 11428757.
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