The long plantar ligament (long calcaneocuboid ligament; superficial long plantar ligament) is a long ligament on the underside of the foot that connects the calcaneus with the cuboid bone.

Structure

The long plantar ligament is the longest of all the ligaments of the tarsus

Tarsus (skeleton)

In tetrapods, the tarsus is a cluster of articulating bones in each foot situated between the lower end of tibia and fibula of the lower leg and the metatarsus. In the foot the tarsus articulates with the bones of the metatarsus, which in turn articulate with the bones of the individual toes...

: it is attached behind to the plantar surface of the calcaneus in front of the tuberosity, and in front to the tuberosity on the plantar surface of the cuboid bone, the more superficial fibers being continued forward to the bases of the second, third, and fourth metatarsal bones.

This ligament converts the groove on the plantar surface of the cuboid into a canal for the tendon of the fibularis longus

Fibularis longus

In human anatomy, the peroneus longus is a superficial muscle in the lateral compartment of the leg, and acts to evert and plantar flex the ankle....

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Deep to this ligament is the short plantar ligament.

External links

• Image at gla.ac.uk