Summary of medial longitudinal arch

Medial longitudinal arch

It is made up by the calcaneus, the talus, the navicular, the three cuneiforms (medial, intermediate, and lateral), and the first, second, and third metatarsals

The medial arch is higher than the lateral longitudinal arch.

It is formed by more bones and joints

It is more mobile

It acts as shock absorber 

Summit: 

Its summit is at the superior articular surface of the talus

Pillars: 

• The medial half of the calcaneum creates the posterior column of the medial longitudinal arch.
• The heads of the medial 3 metatarsals create the anterior column of the medial longitudinal arch.

Joints:
The key joints of the medial longitudinal arch are talocalcaneonavicular and subtalar