Ligamentum Plantare Longum

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Original Editor - Anna Fuhrmann

Top Contributors - Anna Fuhrmann and Kim Jackson


Ligaments of the foot - Long plantar ligament [1]
The long plantar ligament is the longest and strongest ligament of the foot. Running along the base of the foot from the heel bone (calcaneus) to the base of the metatarsal bones, it assists in forming the longitudinal arch of the foot and keeping the calcaneocuboid joint and the midtarsal (Chopard) joint stable. [2] [3] Deeper to the long plantar ligament lies the short plantar ligament.


Originating from the bottom surface of the calcaneus, adjacent to the Processus medialis tuberis calcanei, the long plantar ligament forms a flat, fibrous ligament that attaches at the base of the second to fifth metatarsal bones, and the posterior cuboid bone. [3]


The long plantar ligament closes the Sulcus tendinis musculi fibularis (peronei) longi, which is a meatus running along the base side of the cuboid bone and the three cuneiforme bones. This meatus guides the tendon of the long peroneal muscle, which inserts at the base of the first metatarsal and is secured in this sulcus by the long plantar ligament. [3] Alongside the plantar calcaneonaviculare ligament and the plantar aponeurosis, the long plantar ligament passively supports the longitudinal arch of the foot. [3]

Clinical relevance

Injuries to the long plantar ligament, especially if occurring in combination with injuries to other plantar ligament structures, can result in a destabilisation of the longitudinal arch of the foot.[4]





  1. Gray H. Anatomy of the human body, by Henry Gray, thoroughly rev. and re-edited by Warren H. Lewis. Philadelphia: Lea & Febiger, 1918.
  2. Feger J. Long plantar ligament. Available from: (accessed 15 October 2020).
  3. 3.0 3.1 3.2 3.3 Putz R, Pabst R. Atlas der Anatomie des Menschen Limitierte Jubiläumsausgabe: der komplette Atlas in einem Band. 21. Aufl. München: Urban & Fischer, 2004.
  4. Yang Y, Yu G, Niu W, Zhou J, Chen Y, Yuan F, Ding Z. Effect of the Plantar Ligaments Injury on the Longitudinal Arch Height of the Human Foot. In: Li K, Li X, Irwin GW, He G editors. Life System Modeling and Simulation. Berlin,Heidelberg: Springer, 2007. p111-9.