Navicular

Wikis > Anatomy > Bones > Foot Bones > Navicular

Also called scaphoid. Irregular short bone, anterior to head of the talus.

 

Posterior surface is concave (for articulation of head of talus); anterior surface has 3 triangular areas (separated by 2 faint ridges) for articulation with 3 cuneiforms.

Plantar surface is narrow and rough – for attachment of ligaments and muscles

 

Medial tuberosity is principal attachment of the tibialis posterior tendon.

Os navicularis or accessory navicular or os tibiale occurs in up to 10% - many variations in shape and position.

 

Ossification: -        usually from one primary centre – appears at 3 yrs

-        may have secondary centre at tuberosity – may fuse or remain as secondary bone (accessory navicular or os tibiale externum) (do not confuse with sesamoid bone in tendon)

Related Topics:
Kohler’s Disease | Müller-Weiss Disease | Navicular Stress Fracture | Accessory Navicular | Os Navicularis

 
Comments are closed.