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AN3202 > rearfoot > Flashcards

rearfoot Flashcards

1
Q

what joints allow the ankle mortise adjustable

A

proximal and distal tibiofibular

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2
Q

motion of proximal tibiofibular joint

A

superior/inferior + rotation

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3
Q

distal tibiofibular joint fact

A

not synovial,

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

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4
Q

how much weight goes through fibula

A

only 10%

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5
Q

3 facets of ankle mortise joint talar surface

A

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

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6
Q

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

A

dictates the axis of rotation for subtalar joint

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

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7
Q

weakest ankle ligament

A

ATFL

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8
Q

whats the function of retinacula to ankle

A

helps stabilize ankle mortise joint

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9
Q

ankle dorsiflexion rom? restircted by?

A

20 degs, restricted by soleus + gastrocs

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10
Q

plantar flexion range + resitrcted by?

A

30-50 degs, tib ant, EDL, EHL

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11
Q

muscular limitation of inverseion

A

fibularis longus + brevis

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12
Q

muscular limitation of eversion

A

tib post, FDL, FHL

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13
Q

conclusion of matusaka weird ankle tape study

A

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

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14
Q

two functions of the foot

A

stability and mobility

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15
Q

pronation and supination occur at two sets of joints

A

pronation and supination occur at two sets of joints

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16
Q

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

A

the calcaneous does all the movin

17
Q

closed chain stubtalar pronation

A
  1. Calcaneal eversion
  2. Talar plantarflexion
  3. Talar adduction
18
Q

Close dchain subtalar eversion

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

AN3202 (6 decks)

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