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Intertarsal Joints

articulationes intertarsales

The intertarsal joints include the major midfoot joints between the tarsal bones. The most clinically important grouping is the transverse tarsal joint (Chopart joint) formed by the talonavicular and calcaneocuboid joints together, which when the hindfoot is everted becomes parallel and allows maximum foot flexibility, and when inverted becomes divergent and locks the midfoot into rigidity for push-off. This hindfoot position-dependent midfoot mobility is the basis of the foot's ability to adapt to terrain.

Region: Foot & Ankle

Clinical Relevance

Clinical Notes

Chopart amputation at the transverse tarsal joint level produces a functional stump that allows protected weight bearing but eliminates forefoot push-off. The bifurcate ligament avulsion from the anterior calcaneus is a common ankle sprain variant that produces dorsolateral midfoot pain rather than lateral ankle pain.

Pathology

Common Injuries & Conditions

Bifurcate Ligament Avulsion

Anterior calcaneal ligament avulsion from inversion ankle sprain producing midfoot rather than ankle pain, diagnosed by palpation tenderness over the anterior calcaneus and confirmed by radiograph showing the avulsion flake.