The calcaneocuboid joint (latin:articulatio calcaneocuboidea) is an articulation of the foot that is formed between the calcaneus and the cuboid bone.
The articular surfaces of the calcaneocuboid joint are:
- anterior or distal surface of the calcaneus,
- posterior or proximal surface of the cuboid.
The calcaneocuboid joint is embraced by a fibrous capsule that is thickened posteriorly as the dorsal calcaneocuboid ligament.
The calcaneocuboid joint is strengthened by the three following ligaments.
- The bifurcate ligament (latin: lig. bifurcatum) is a strong Y-shaped band, that is attached to the calcaneus and distally divides into calcaneocuboid and calcaneonavicular parts. The calcaneocuboid part attaches to the cuboid bone, while the calcaneonavicular part attaches to the navicular bone.
- The long plantar ligament (latin: lig. plantare longum) is the longest ligament of the foot, and it is attached to the calcaneus and extends to the plantar surface of the second to fifth metatarsal bones.
- The plantar calcaneocuboid ligament (latin: lig. calcaneocuboideum plantare) is a short, wide band that extends from the anterior calcaneal tubercle to the plantar surface of the cuboid.
The calcaneocuboid joint allows only small amount of movements - gliding movements between the calcaneus and the cuboid bone.