What are the Lisfranc joints?

The Lisfranc joints refer specifically to the tarsometatarsal joints, which are the articulations between the tarsal bones (specifically the cuboid and cuneiforms) and the metatarsal bones of the foot. This area is significant in both anatomy and clinical settings, as injuries to the Lisfranc joints can lead to serious foot instability and functional impairment.

The importance of identifying the Lisfranc joints correctly lies in their role in maintaining the arches of the foot and providing stability during weight-bearing activities. Injuries in this region, such as fractures or dislocations, can disrupt the alignment and function of the foot, leading to long-term complications if not properly diagnosed and treated.

While other joints mentioned in the options play important roles in foot function, they do not correspond to the Lisfranc joints. For instance, the interphalangeal joints are found between the phalanges, the calcaneocuboid joint is formed between the calcaneus and the cuboid, and the talonavicular joint involves the talus and navicular bones. Understanding these distinctions is crucial for a comprehensive grasp of foot anatomy and the specific implications of injuries related to the Lisfranc region.