Chapter 8 Ankle and Foot Flashcards Preview

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Flashcards in Chapter 8 Ankle and Foot Deck (21):
1

Portion of talus that artciulates with ankle mortise?

Trochlea of talus

2

Which ankle motion is more stable, plantarflexion or dorsiflexion?

Dorsiflexion--bc talus is wider anteriorly

3

Talocrural joint (tibiotalar joint)?

Hinge joint bt talus and medial malleolus, and lateral melleolus

4

Main motions of talocrural joint?

Plantarflexion and dorsiflexion

5

What motion occurs with anterior glide of talus?

Plantarflexion

6

What motion occurs with posterior glide of talus?

Dorsiflexion

7

80% of ankle sprains occur in plantarflexion or dorsiflexion?

Plantarflexion (due to stability of ankle in dorsiflexion)

8

What joint allows internal/external rotation of leg while foot is fixed?

Subtalar joint (talocalcaneal joint)

9

Arches of foot?

Longitudinal and transverse

10

Medial longitudinal arch?

Talus, navicular, cuneiforms, 1-3 metatarsals

11

Lateral longitudinal arch?

Calcaneus, cuboid, 4-5 metatarsals

12

Tranverse arch?

Navicular, cuneiforms, cuboid

13

Where do most SDs occur in foot?

Transverse arch--often seen in long distance runners

14

Lateral stabilizers of ankle?

ATF, calcaneofibular, posterior talofibular

15

Most common injured ankle ligament?

ATF

16

Type I ankle sprain?

Only ATF

17

Type II ankle sprain?

ATF and calcaneofibular

18

Type III ankle sprain?

ALL 3 lateral ligaments

19

Excessive pronation usually results in what injury?

Fracture of medial malleolus (rather than pure ligamentous injury)

20

Spring ligament?

Calcaneonavicular ligament--strengthens medial longitudinal arch

21

Attachments of plantar aponeurosis?

Calcaneus and phalanges