Ankle and foot structure

Question 1

what plane does inversion happen in

Answer 1

Frontal

Question 2

What plane does pronation happen in

Answer 2

Triplanar

Question 3

What does the sustentaculum tali do

Answer 3

It is a bony prominence projecting medially on the calcaneus from its superior surface
It forms a horizontal shelf on which the head of the talus articulates

Question 4

What bones are part of the hindfoot

Answer 4

Talus,calcaneus

Question 5

What bones are part of the midfoot

Answer 5

Navicular, cuneiforms, cuboid

Question 6

What bones are part of the forefoot

Answer 6

Metatarsals, phalanges

Question 7

What does the 5th metatarsal do

Answer 7

It serves as the attatchment site for the tendons of the fibilaris brevis and tertius mscles

Question 8

What is avulsion fracture

Answer 8

Avulsion fracture of base of 5th metatarsal can occur during a lateral ankle sprain
Tension from the fibularis (peroneus) brevis can pull the tuberosity
of the 5th metatarsal away from the rest of the metatarsal

Question 9

What is Jones fracture

Answer 9

Fracture of the 5th metatarsal
It does not heal well due to poor blood supply

Question 10

Articulating bones of the proximal tibiofibular joint

Answer 10

Articular facet on the lateral tibial condyle
Articular facet on the head of the fibula

Question 11

Diarthrodial joint subdivision of the proximal tibiofibular joint

Answer 11

Nonaxial irregular

Question 12

Articulating bones of the distal tibiofibular joint

Answer 12

Fibular notch on the distal tibia
Distal fibula

Question 13

Joint subdivision of the distal tibiofibular joint

Answer 13

Syndesmosis type synarthrodial joint
Joint does not have a joint cavity/space between articulating bones and does not have a joint capsule

Question 14

What is a syndesmosis (high ankle) sprain

Answer 14

Forced excessive dorsiflexion, often with abduction of the foot
The talus is therefore forced up between the distal tibia and fibula and forces a widening of the distal tibiofibular joint

Question 15

Is the anterior or posterior tibiofibular ligament more commonly injured?

Answer 15

Anterior

Question 16

Articulating bones of the talocrural joint

Answer 16

Distal tibia and fibula
Talus (dome)

Question 17

Diarthrodial joint subdivision of talocrural joint

Answer 17

Uniaxial hinge

Question 18

Deltoid ligament function

Answer 18

Limits excessive eversion

Question 19

Anterior talofibular ligament function

Answer 19

Limits excessive inversion and plantar flexion

Question 20

Posterior talofibular ligament function

Answer 20

Limits excessive inversion and dorsiflexion

Question 21

Calcaneofibular ligament function

Answer 21

Limit excessive inversion

Question 22

Out of the posterior talofibular, anterior talofibular and calcaneofibular ligament, which one is most and least sprained

Answer 22

The anterior talofibular ligament is the most commonly sprained lateral ligament
followed by the calcaneofibular and then the posterior talofibular

Question 23

What are the most common type of ankle sprain and what causes this

Answer 23

Lateral ankle sprains due to excessive inversion

Question 24

Articulating bones of the talocalcaneal joint

Answer 24

Inferior aspect of the talus
Superior aspect of the calcaneus

Question 25

Joint category and subdivision of talocalcaneal joint

Answer 25

Uniaxial pivot