Structure
The long plantar ligament is the longest ligament of the foot. It arises from the planar aspect of the calcaneus, just anterior to the lateral and medial processes of the calcaneal tuberosity, and from the calcaneal tubercle. The deep fibers of the long plantar ligament extend distally to insert into the tuberosity of the cuboid bone, while the superficial fibers extend to the bases of the second to fifth metatarsals.
Related parts of the anatomy
Anatomical Relations
The long plantar ligament forms a tunnel over a groove on the plantar surface of the cuboid, through which the tendon of the fibularis longus passes. The plantar calcaneocuboid ligament (or short plantar ligament) is found deep to the long plantar ligament.
Function
The long plantar ligament plays a role In maintaining the longitudinal arch of the foot.
