Biomechanics: Ankle

Front

What is the open pack position of the talocrural joint?

Back

10 degrees plantarflexion, midway between inversion and eversion.

Front

What bones make up the midfoot?

Back

The navicular, cuboid, and cuneiforms.

Front

What is the capsular pattern of the talocrural joint?

Back

Plantarflexion > Dorsiflexion.

Front

What is the most common direction to sprain an ankle?

Back

Inversion, injuring the ATFL (anterior talofibular ligament).

Front

Is a pronated foot generally more flexible?

Back

True.

Front

What is the primary function of the talocrural joint?

Back

To allow dorsiflexion and plantarflexion of the foot.

Front

What ligaments are involved in ankle stability?

Back

The lateral ligaments (ATFL, CFL, PTFL) and the deltoid ligament.

Front

What is the role of the deltoid ligament?

Back

To provide medial stability to the ankle joint.

Front

What is the difference between inversion and eversion?

Back

Inversion is the movement of the sole towards the midline, while eversion is the movement away from the midline.

Front

What is the significance of the subtalar joint?

Back

It allows for inversion and eversion of the foot.