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ORTHOBULLETS > FOOT ANKLE > Flashcards

FOOT ANKLE Flashcards

1
Q

POST TIB

most powerful foot __

A

inverter

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2
Q

POST tib
origin
insertion

A

origin = posterior tib-fib, IO membrane

insertion = navicular tuberosity, plantar MT

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3
Q

after ankle fusion, stride length vs TAA

A

decr stride length

also decr cadence and velocity

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4
Q

fusion of ___ joint eliminates all hindfoot motion

A

talonavicular

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5
Q

MC cause of foot osteo

MC cause of foot puncture wound

A

foot osteo = pseudomonas

foot infection = staph aureus

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6
Q

for TMT fx-dx how to stiff immobilize operatively

A

1, 2, 3 joint plating

4, 5 K-wire b/c more mobile

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7
Q

first step for tibiotalar arthritis nonop

A

CSI

rocker bottom shoe

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8
Q

tibiotalar arthritis surgery options

young active
old inactive

A

young active = fusion

old inactive = TAA

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9
Q

optimal position for ankle fusion

A

plantigrade
10 deg ER
5 deg valgus
5 mm posterior position talus on plafond

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10
Q

nerve at risk with approach to medial sesamoid

A

plantarmedial cutaneous nerve

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11
Q

Tx FHL impingement (PM pain , decr passive EHL) after nonop

A

FHL release at level of ankle

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12
Q

what happens during heel strike

A

TA eccentric

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13
Q

what happens during swing phase with TA weakness

A

steppage gait (incr hip/knee flexion) to clear foot

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14
Q

what happens during swing phase

A

TA concentric

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15
Q

Morton extension for what

A

hallux rigidus

limits 1st MTP DF

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16
Q

if great toe fused in PF or too straight then

A

excess lateral pressure on foot (should be 10 deg valgus and 15 deg DF)

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17
Q

flexible pes planovalgus

where is pain?
how to tx

A

lateral hindfoot pain

tx = medial hindfoot posting

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18
Q

lower rate achilles re rupture with surgery or nonop

A

surgery

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19
Q

DM cutaneous nerve of hallu br of what

A

saphenous

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20
Q

loss of medial arch and pes planus after CSI

A

acute plantar fascia rupture

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21
Q

transverse tarsal joint is

A

chopart = TN + CC joints

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22
Q

transverse tarsal axes ___ during heel strike when subtalar joint is ___

A

transvrse tarsal axes PARALLEL when subtalar joint is EVERTED

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23
Q

EVERSION of subtalar joint ___ transverse tarsal joint

A

unlocks transverse tarsal joint so flexible and shock absorption

inversion –> locks transverse tarsal so inflexible and push off

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24
Q

stage of PTTD

rigid flatfoot

A

stage 3

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25
stage of PTTD rigid hindfoot valgus talus and tibiotalar arthritis
stage 4
26
stage of PTTD flexible flatfoot
stage 2
27
tx stage 2 PTTD
medial displ calc osteotomy, FDL transfer to navicular
28
greatest change in forces across ankle joint w which procedure
tibial osteotomy
29
orthosis for chronic plantar fascitis
DF night splint
30
risk for failure of repair of dislocating peroneal tendons
hindfoot varus
31
lateral or medial talar OCD? assoc w trauma
lateral
32
lateral or medial talar OCD? more anterior
lateral
33
lateral or medial talar OCD? harder to tx w nonop
lateral
34
stage 2 PTTD initial nonop tx
medial heel lift, arch support, medial forefoot posting if FIXED FOREFOOT SUPINATION
35
post on which side to offload lateral hindfoot
medial hindfoot post
36
what is assoc w attenuation of superomedial CN ligament
adult flatfoot
37
chronic lateral ankle instability assoc w
longitudinal split tear of peroneus brevis
38
tx equinocavovarus foot
TAL Tib post transfer to dorsal foot plantar fascia release
39
hallmark of juvenile bunion
metatarsus primus varus
40
conjoined tendon at base of great toe made of
FHB + adductor hallucis | release causes hallux varus
41
most freq entrapment of DPN where
inferior extensor retinaculum
42
what happens in stance phase
hip flexor, ankle PF | concentric TA contraction
43
triad of tib ant rupture
1. pseudotumor at anterior ankle 2. loss of nl contour of tendon 3. weak DF + hyperextension of all toes
44
orthotic for cavovarus foot
lateral hindfoot post | 1st MT head recess
45
antagonist to post tib
peroneus brevis
46
antagonist to tib ant
peroneus longus
47
MC site for morton neuroma
3rd webspace
48
adult flat foot is assoc w
tarsal tunnel syndrome
49
MORTON extension orthosis used to
limit 1st MTP dorsiflexion in hallux rigidus
50
resect fibular sesamoid leads to
hallux varus
51
resect tibial sesamoid leads to
hallux valgus
52
mc complication of Weil osteotomy
floating toe = MTP DF contracture from convert interosseous from PF to DF
53
risk factor for failed lateral ankle recon
bony malalignment - hindfoot varus - 1st ray PF - cavovarus
54
tx of stage 2 PTTI (flexible hindfoot)
medial calc slide osteotomy | lateral column lengthening
55
tx of stage 3 PTTI with stiff hindfoot
talonavicular arthrodesis
56
tx for transfer metatarsal gia (transfer pain in lesser MT heads) with elongated 2nd ray
shortening osteotomy of 2nd MT
57
typical surgeries for adult flatfoot
medial displ calc ostoetomy FDL transfer medial cuneiform ostoeotmy lateral column lengthening
58
tx morton neuroma
release inter metatarsal lig and resect neuroma
59
2 tarsal coalitions
CN | TC
60
tx for large tarsal coalition more than 50% of joint
subtalar fusion
61
stage 4 flatfoot due to what lig injury
deltoid lig
62
1st muscles affected by CMT
foot intrinsics

ORTHOBULLETS (9 decks)

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