Lateral cuneiform

The lateral cuneiform is one of the tarsal bones located between the intermediate cuneiform and cuboid bones.

The lateral cuneiform is a wedge-shaped bone. It is smaller than the medial cuneiform and larger than the intermediate cuneiform. It lies edge downward, between the intermediate cuneiform and cuboid.

  • anteriorly with the 2nd and 3rd metatarsals
  • posteriorly with the navicular
  • laterally with the cuboid
  • medially with the intermediate cuneiform
  • flexor hallucis brevis: the proximal part of the lateral cuneiform undersurface gives rise to this muscle
  • tibialis posterior: one of its fibrous terminal tendon slips attaches to the narrow plantar surface
  • anterior: 2nd and 3rd metatarsal
  • posterior: navicular
  • lateral: cuboid
  • medial: intermediate cuneiform

The lateral cuneiform ossifies in the first year of life.

  • isolated lateral cuneiform fracture is rare, but has been documented in the literature 1
Anatomy: Lower limb

Anatomy: Lower limb

Article information

rID: 41547
Section: Anatomy
Synonyms or Alternate Spellings:
  • Lateral cuneiform bones
  • Lateral cuneiform bone
  • Third cuneiform
  • External cuneiform
  • Cuneiforme lateral

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Cases and figures

  • Figure 1
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  • Figure 2
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  • Case 1: lateral cuneiform fracture
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  • Figure 3a: lateral cuneiform (Gray's illustration)
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  • Figure 3b: lateral cuneiform (Gray's illustration)
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