Tibialis posterior tendon
Tendo musculi tibialis posterioris
MuscularDeep musclesLegLeft and right
View left in 3D View right in 3D
- What it is
- Tendon of tibialis posterior: it grooves the back of the medial malleolus, then runs forward under the spring ligament to the tuberosity of the navicular, with slips to the cuneiforms, cuboid and bases of metatarsals 2-4.
- Function
- Pulls the foot into inversion and supports the arch from below.
- Size
- About 15 cm long, 6 mm diameter.
- Clinical note
- Degeneration where it rounds the medial malleolus (a zone of poor blood supply) leads to progressive collapse of the arch.