1/22
Looks like no tags are added yet.
Name | Mastery | Learn | Test | Matching | Spaced |
|---|
No study sessions yet.
Bones that comprise the ankle (3)
Tibia
Fibula
Talus

Joints of the ankle (3)
Talocrural joint (primary)
Proximal tibiofibular joint
Distal tibiofibular joint

What joint(s) enable weight transfer between the ankle and the foot?
Proximal and distal tibiofibular joints

A majority of body weight is transferred through the (bone)
Tibia

What percentage of total body weight is transferred through the tibia?
90% total body weight

Joint classification of the proximal tibiofibular joint
Synovial joint (2 flat or slightly oval surfaces)

Movement allowed at proximal tibiofibular joint
Little gliding movement

Stability for the proximal tibiofibular joint is provided by... (3 structures)
Ligaments
Joint capsule
Popliteus tendon

Joint classification of the distal tibiofibular joint
Synarthrodial joint

How much movement is allowed at the distal tibiofibular joint?
Minimal movement

Stability for the distal tibiofibular joint is provided by... (3 structures)
Interosseous ligament
Anterior tibiofibular ligament
Posterior tibiofibular ligament

In the talocrural joint, is the talus the convex or concave component?
Talus is CONVEX in the talocrural joint

What is the concave component of the talocrural joint?
The tibia and fibula

What type of joint is the talocrural joint? (specific classification based on shape)
Mortise joint

Function of the deltoid ligament (I function, 3 joints)
Limits eversion at the:
Talocrural joint
Subtalar joint
Talonavicular joint

Components of the deltoid ligament (3)
Tibionavicular fibers
Tibiocalcaneal fibers
Tibiotalar fibers

Why does the deltoid ligament have a lower injury rate than the lateral ankle ligaments? (2 reasons)
Higher strength of deltoid ligaments
Lateral malleolus blocks excessive eversion

What ligament stabilizes the talus within the mortise joint?
Posterior talofibular ligament

What ligament limits inversion and dorsiflexion?
Calcaneofibular ligament

What ligament limits inversion and plantarflexion?
Anterior talofibular ligament

Most frequently injured ligament in ankle and foot complex
Anterior talofibular ligament

Most common injury mechanism for anterior talofibular ligament sprain
Inversion + plantarflexion during weight bearing

The relative inability of the _______ ________ to block the medial side of mortise joint contributes to anterior talofibular ligament sprains.
Medial malleolus
