Cuboid

Description

Posterolateral illustration of the cuboid

Anteromedial illustration of the cuboid

Name

• Cuboid
• Cuboidal bone

General

• Wedge shaped bone
• Midfoot bone which stabilizes lateral column
• One of the tarsal bones of the foot

Articulations

• Calcaneus: proximal facet
• Lateral cuneiform: medial facet
• Metatarsals: 4th and 5th metatarsal at distal facets
• Navicular: articulates with navicular in 25% of the population

Peroneal sulcus

• On plantar surface, runs plantar wards and medially toward the insertion of the tendon in the first metatarsal bone
• Cuboid acts as a fulcrum during the contraction of the peroneus longus

Actions

• Stabilize calcaneocuboid joint during weight bearing
• Support and stabilize lateral column
• Acts as a fulcrum during contraction of peroneal longus

Vascular Supply

• Lateral plantar artery

Innervation

• Branches of
  • Lateral Plantar Nerve
  • Sural Nerve
  • Deep Fibular Nerve

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Clinical Significance

• Cuboid Fracture
• Cuboid Stress Fracture
• Cuboid Syndrome

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See Also

• Foot Pain (Main)
• Physical Exam Foot
• Foot And Ankle Anatomy (Main)

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