Talonavicular Joint

Description

Lateral radiograph of the foot with normal talonavicular joint

Ultrasound image of the talonavicular joint space with a joint effusion present.

Other Names

• Talonavicular Joint
• Talocalcaneonavicular Joint
• Latin: Articulatio talonavicularis
• Coxa pedis: so-called due to the ball and sock appearance
• Talonavicular articulation

General

• Articulation between talus, navicular
• Synovial saddle joint
• Important part of the chopart joint (along with the Calcaneocuboid Joint)

Gross Anatomy

• Head of the talus
• Concavity produced by the posterior aspect of the navicular

Ligaments

• Three primary stabilizing ligaments
  • Dorsal Talonavicular Ligament
  • Spring Ligament Complex
  • Calcaneonavicular component of the Bifurcate Ligament

Vascular Supply

• Branches of
  • Dorsalis Pedis Artery
  • Posterior Tibial Artery

Innervation

• Deep fibular nerve
• Medial plantar nerve

---

Clinical Significance

• Chopart Fracture Dislocation
• Chopart Joint Sprain

---

See Also

• Foot Anatomy Main
• Foot Pain Main
• Physical Exam Foot

---