Lateral longitudinal arch
It is composed of the calcaneus, the cuboid, and
the fourth and fifth metatarsals
It is lower
than the medial longitudinal arch.
It is formed by less bone and joint
It is less mobile
It commonly bears body weight
The
peak of the lateral longitudinal arch is located at the level of articular
facets on the superior outermost layer of the calcaneum (i.e., at the level of
subtalar joint).The posterior column of the lateral longitudinal arch is composed by the lateral tubercle of the calcaneum and the anterior column is composed by the heads of the lateral 2 metatarsals.
The primary joint of the lateral longitudinal arch is calcaneocuboid joint.
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