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Calcaneonavicular Ligament

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(Redirected from Spring Ligament Complex)

Description

Illustration of the normal anatomy of the spring ligament complex. From medial to lateral, the 3 components of the spring ligament complex are: the SM, the MPO, and the IPL. The spring ligament recess and the anterior, middle, and posterior calcaneal facets are also depicted.[1]
Diagram of the medial aspect of the ankle and foot showing the three components of the spring ligament. sm CNL Superomedial calcaneonavicular ligament, mp CNL medioplantar calcaneonavicular ligament, ip CNL inferoplantar calcaneonavicular ligament (arrow)[2]

Other Names

  • Calcaneonavicular Ligament
  • Spring ligament complex
  • Calcaneonavicular Ligament complex
  • Spring ligament fibrocartilage complex
  • Plantar calcaneonavicular ligament

General

  • Broad thick band of ligaments that supports of the hind- and midfoot
  • Connects the calcaneus, navicular to support the talus
  • Term 'spring ligament' is a misnomer, there are no elastic or spring-like properties
  • Functions like a normal ligament

Gross Anatomy

  • Superomedial ligament
    • Forms a sling, suspending/articulating against the head of the talus
    • Origin from anterior sustentaculum tali with a wide insertion onto the navicular
    • Merges with the inferior aspect of the tibiospring ligament (a portion of the superficial deltoid ligament)
    • Strongest and most important longitudinal arch stabilizer; also most commonly torn/repaired
  • Medioplantar oblique ligament
    • Also called lateral calcaneonavicular ligament
  • Inferoplantar longitudinal ligament
    • Also called intermedial calcaneonavicular ligament
    • Minor role in stabilizing hindfoot, longitudinal arch

Function

  • Acts as a static restraint to the arch[3]
    • In conjunction with the plantar fascia, tibionavicular ligament, long and short plantar ligaments, and the talocalcaneal ligament
  • Acts as a sling for the talar head (acetabulum pedis)[4]
    • Preventing the talar head from plantarflexing
  • Prevents subluxation of the talonavicular joint
    • Incompetence or injury of the spring ligament
    • May allow subluxation of the talonavicular joint
    • The talar head sags into plantarflexion with associated abduction through the transverse tarsal joint
    • Eversion of the calcaneus leading to hindfoot valgus

Clinical Significance

See Also

References

  1. ↑ Tafur, Monica, Zehava Sadka Rosenberg, and Jenny T. Bencardino. "MR imaging of the midfoot including Chopart and Lisfranc joint complexes." Magnetic Resonance Imaging Clinics 25.1 (2017): 95-125.
  2. ↑ Mansour, Ramy, et al. "Ultrasound assessment of the spring ligament complex." European radiology 18 (2008): 2670-2675.
  3. ↑ Kitaoka HB, Ahn TK, Luo ZP, et al. Stability of the arch of the foot. Foot Ankle Int 1997;18(10):644–8.
  4. ↑ Desai KR, Beltran LS, Bencardino JT, et al. The spring ligament recess of the talocalcaneonavicular joint: depiction on MR images with cadaveric and histologic correlation. AJR Am J Roentgenol 2011;196(5):1145–50.
Created by:
John Kiel on 26 June 2019 00:09:24
Authors:
Last edited:
3 October 2024 21:40:56
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