BoneShort bone

Navicular

Latin: Os naviculare sinistrum

Location: Foot — medial midfoot

Paired structure: one on the left and one on the right side of the body.

View the navicular in 3D

Function

The midfoot's beached boat — its tuberosity is the tibialis posterior's anchor, holding up the medial arch against collapse.

Landmarks

  • Tuberosity (tibialis posterior insertion)
  • Articular surfaces

Articulations (joints)

  • Talus head (talonavicular)
  • Three cuneiforms
  • Cuboid (variable)

Clinical relevance

Navicular stress fractures afflict sprinters and are notoriously delayed in healing because the bone's central third is poorly perfused.

Educational anatomy reference, not medical advice. About this content.