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
Q

stage of PTTD

rigid hindfoot
valgus talus and tibiotalar arthritis

A

stage 4

26
Q

stage of PTTD

flexible flatfoot

A

stage 2

27
Q

tx stage 2 PTTD

A

medial displ calc osteotomy, FDL transfer to navicular

28
Q

greatest change in forces across ankle joint w which procedure

A

tibial osteotomy

29
Q

orthosis for chronic plantar fascitis

A

DF night splint

30
Q

risk for failure of repair of dislocating peroneal tendons

A

hindfoot varus

31
Q

lateral or medial talar OCD?

assoc w trauma

A

lateral

32
Q

lateral or medial talar OCD?

more anterior

A

lateral

33
Q

lateral or medial talar OCD?

harder to tx w nonop

A

lateral

34
Q

stage 2 PTTD initial nonop tx

A

medial heel lift, arch support, medial forefoot posting if FIXED FOREFOOT SUPINATION

35
Q

post on which side to offload lateral hindfoot

A

medial hindfoot post

36
Q

what is assoc w attenuation of superomedial CN ligament

A

adult flatfoot

37
Q

chronic lateral ankle instability assoc w

A

longitudinal split tear of peroneus brevis

38
Q

tx equinocavovarus foot

A

TAL
Tib post transfer to dorsal foot
plantar fascia release

39
Q

hallmark of juvenile bunion

A

metatarsus primus varus

40
Q

conjoined tendon at base of great toe made of

A

FHB + adductor hallucis

release causes hallux varus

41
Q

most freq entrapment of DPN where

A

inferior extensor retinaculum

42
Q

what happens in stance phase

A

hip flexor, ankle PF

concentric TA contraction

43
Q

triad of tib ant rupture

A
  1. pseudotumor at anterior ankle
  2. loss of nl contour of tendon
  3. weak DF + hyperextension of all toes
44
Q

orthotic for cavovarus foot

A

lateral hindfoot post

1st MT head recess

45
Q

antagonist to post tib

A

peroneus brevis

46
Q

antagonist to tib ant

A

peroneus longus

47
Q

MC site for morton neuroma

A

3rd webspace

48
Q

adult flat foot is assoc w

A

tarsal tunnel syndrome

49
Q

MORTON extension orthosis used to

A

limit 1st MTP dorsiflexion in hallux rigidus

50
Q

resect fibular sesamoid leads to

A

hallux varus

51
Q

resect tibial sesamoid leads to

A

hallux valgus

52
Q

mc complication of Weil osteotomy

A

floating toe = MTP DF contracture from convert interosseous from PF to DF

53
Q

risk factor for failed lateral ankle recon

A

bony malalignment

  • hindfoot varus
  • 1st ray PF
  • cavovarus
54
Q

tx of stage 2 PTTI (flexible hindfoot)

A

medial calc slide osteotomy

lateral column lengthening

55
Q

tx of stage 3 PTTI with stiff hindfoot

A

talonavicular arthrodesis

56
Q

tx for transfer metatarsal gia (transfer pain in lesser MT heads) with elongated 2nd ray

A

shortening osteotomy of 2nd MT

57
Q

typical surgeries for adult flatfoot

A

medial displ calc ostoetomy

FDL transfer

medial cuneiform ostoeotmy

lateral column lengthening

58
Q

tx morton neuroma

A

release inter metatarsal lig and resect neuroma

59
Q

2 tarsal coalitions

A

CN

TC

60
Q

tx for large tarsal coalition more than 50% of joint

A

subtalar fusion

61
Q

stage 4 flatfoot due to what lig injury

A

deltoid lig

62
Q

1st muscles affected by CMT

A

foot intrinsics