ankle joint

Question 1

ankle joint type

Answer 1

modified hinge

Question 2

ankle joint mvmt

Answer 2

dorsi and plantar flexion

Question 3

components of pronation

Answer 3

abduction, eversion, dorsiflexion

Question 4

components of supination

Answer 4

adduction, inversion, plantar flexion

Question 5

deltoid lig

Answer 5

triangle shaped, strong, on the medial side, prevents excessive eversion

Question 6

lateral lig

Answer 6

thinner, weaker, commonly sprained, prevents excessive inversion
3 parts:
calcaneofibular
ant talofibular
post talofibular

Question 7

ant and post inf talofibular ligs

Answer 7

connect the inf portion of the tib and fib together

helps lock the ankle in dorsiflexion

Question 8

center of mass

Answer 8

ant to joint

dorsiflexed position

Question 9

stability

Answer 9

eccentric contraction of triceps surae needed to prevent excess dorsiflexion

Question 10

prime dorsiflexors

Answer 10

anterior crural compartment

• tibialis anterior
• extensor hallicus longus
• extensor digitorum longus
• fibularis tertius

Question 11

combined action of fib tertius and tib anterior

Answer 11

dorsiflexes

tib ant inverts and fib tert everts so they cancel eachother out to produce pure DF

Question 12

prime plantar flexors

Answer 12

triceps surae

• gastrocs
• soleus
• plantaris

Question 13

inversion sprains and lig tears

Answer 13

far more common, weak lat lig

inversion test

Question 14

common/deep fib nerve lesion

Answer 14

foot drop

Question 15

superficial fibular nerve lesion

Answer 15

lateral compartment muscles

Question 16

deep fibular n lesion

Answer 16

ant comp muscles, DFers, fairly superficial at neck of the fibula. trauma to neck causes damage here. foot drop

Question 17

tibial n damage

Answer 17

terminal branch of sciatic
post comp m’s: difficulty DFing
toe walk test

Question 18

L5 root damage

Answer 18

foot drop, DFing problems

Question 19

S1 root damage

Answer 19

triceps surae, dragged foot

Question 20

differentiating btw sprain and fracture

Answer 20

palpate posterior malleoli and base of MT5

if tender–> fracture

Question 21

lig damage

Answer 21

compare R and L ankles for a difference

Question 22

ant draw test

Answer 22

anterior talofibular ligament

Question 23

talar tilt test

Answer 23

calcaneofibular lig

grasp talus btw thumb and first finger, varus force

Question 24

squeeze test

Answer 24

pain upon compression of distal tib and fib

2-3 inches above ankle–>high ankle sprain