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Flashcards in rearfoot Deck (18)
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1

what joints allow the ankle mortise adjustable

proximal and distal tibiofibular

2

motion of proximal tibiofibular joint

superior/inferior + rotation

3

distal tibiofibular joint fact

not synovial,

fibrous union between convex facet of fibula, concave facet of tibia

4

how much weight goes through fibula

only 10%

5

3 facets of ankle mortise joint talar surface

lateral facet (LARGE), medial facet (small), trochlear (superior) facet

6

superior facet of ankle mortise has a groove, what does this groove do?

dictates the axis of rotation for subtalar joint

(its rotated 20-30 degrees in transverse plane -- when ankle dorsiflexed, the foot externally rotates)

7

weakest ankle ligament

ATFL

8

whats the function of retinacula to ankle

helps stabilize ankle mortise joint

9

ankle dorsiflexion rom? restircted by?

20 degs, restricted by soleus + gastrocs

10

plantar flexion range + resitrcted by?

30-50 degs, tib ant, EDL, EHL

11

muscular limitation of inverseion

fibularis longus + brevis

12

muscular limitation of eversion

tib post, FDL, FHL

13

conclusion of matusaka weird ankle tape study

postural sway improved 2 weeks earlier in group that had taping in addition to ankle disk

14

two functions of the foot

stability and mobility

15

pronation and supination occur at two sets of joints

pronation and supination occur at two sets of joints

16

in open chain - what does all pronation and supination of ankle

the calcaneous does all the movin

17

closed chain stubtalar pronation

1.Calcaneal eversion
2.Talar plantarflexion
3.Talar adduction

18

Close dchain subtalar eversion

1.Calcaneal inversion
2.Talar dorsiflexion
3.Talar abduction