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PODMED2 > Wk7- FPI > Flashcards

Wk7- FPI Flashcards

1
Q

What are the 6 FPI criterias

A
  1. Talar head palpation
    2.malleolar curves
  2. Calcaneal frontal plane position
  3. Tall-navicular bulge
  4. Congruence of MLA
  5. Forefoot abduction/adduction
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2
Q

Pronated foot type =
Supinated =

A

Pronated = positive result
Sup= negative result

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3
Q

Interpretation of FPI scores

A

Normal= 0- 5
Pronated = 6 to 9 Highly pronated = 10+
Supinated= -1 to -4 highly supinated = -5 to -12

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4
Q

STJ motion - OKC/CKC

A

Talus doesn’t move in open
Calc and talus move in closed - weightbearing

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5
Q

Purpose of OKC measures (non weight bearing)

A
  • assess total ROM of joint
    -assess direction of motion of joint
  • assess positional deformity of a joint
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6
Q

Define Rearfoot varus

A

Inverted position of the cal in relation to the ground in NCSP

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7
Q

Cause of rearfoot varus

A

congential osseous deformity due to
- tibial varum and or
-STJ varum

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8
Q

Pathomechanics of rearfoot varum During gait

A

Loading response- rapid and excessive pronation required at STJ + excessive internal tibial rotation until end of ROM or until FF contacts ground. This means further unlocking of MTJ occurs

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9
Q

What does a fully compensated RFVR look like in RCSP

A

Sufficient STJ pronation available
Heel will appear vertical and STJ pronated

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10
Q

What does a partially compensated RFVR look like in RCSP

A

Available STJ pronation (eversion) less than the degree of RFVR
-RCSP will be inverted but less than NCSP

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11
Q

What does an uncompensated RFVR look like in RCSP

A
  • no available STJ eversion, heel stays in inverted position during gait
    -RCSP = NCSP position
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12
Q

Signs and symptoms of a compensated FRVR

A

-callous PMA 2-4
-low arch
-lateral shoe wear
-Hallux limitus with bunion
-muscle fatigue
-inversion ankle sprains
-heel pain

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13
Q

Signs and symptoms of partially/uncompensated RFVR

A

-callous on lateral foot
-tailors bunion
-acquired plantarflexed 1st ray
-inversion ankle sprains
-lack of internal tibial rotation/shock attenuation mechanisms

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14
Q

Define rearfoot valgus

A

Everted position of calc in relation to the ground in NCSP (not to be confused with a pronated RCSP)

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15
Q

What is the cause of RFVL

A

Congential osseous deformity:
May be present in cases of:
-tibial valgum (rare)

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16
Q

What does compensation for RFVL look like

A

-if RFVL more than a few degrees then head of talus will hit ground before STJ reaches full ROM
-less symptoms

17
Q

What is the difference between STJ VR/VL deformity and RF VR/VL deformity?

A

STJ- OKC which can be negated by a tibial varum/valgus which results in no rearfoot deformity

RF- CKC deformity with respect to the ground

18
Q

How is the MTJ believed to lock during supination?

A

-cuboid and dorsal border of calc lock
-ligaments

19
Q

Does the MTJ move when the STJ moves?

A

Yes. Due to articular surfaces

20
Q

Define Forefoot varus

A

When the STJ is neutral, MTJ pronated, forefoot locked and

-the forefoot is inverted in respect to the rearfoot

21
Q

Pathomechanics of FFVR during gait

A

Excessive STJ pronation through midstance ( if only a few degrees)

“ through midstance, terminal, toe off, swing if more than a few degrees

22
Q

What does a compensated FFVR look like

A

More STJ eversion available than the size the FFVR, therefore can pronate to make contact

23
Q

Partially compensated FFVR looks like

A

STJ pronated to end ROM is less than size of FFVR

-additional pronation can occur through MTJ and plantar flexion of 1st ray

24
Q

Uncompensated FFVR looks like

A

STJ at end ROM and FF is not at the ground

Which could rule in a
-Tib VR and Or
-RFVR

Present as well

25
Q

What is the cause of forefoot supinatus and how does it occur

A

Soft issue adaptation (Davies law) - shortening of tib ant tendon

Occurs when excessive compensatory STJ pronation causes secondary inversion around the MTJ

26
Q

What is a forefoot valgus

A

When STJ is neutral, MTJ pronated, locked FF
And
-forefoot is everted with respect to rearfoot

27
Q

Difference between a flexible and rigid FFVL

A

Flexible: available MTJ ROM to allow for forefoot contact (compensated)

Rigid: MTJ can’t compensate, STJ has to supinate to compensate

28
Q

The ways that FFVL can compensate

A

MTJ supination or STJ supination

29
Q

What is the difference between FFVL and plantarflexed 1st ray

A

FFVL- all met heads are in valgus position
1st RPF- just the 1st met head is down

30
Q

Treatment for these forefoot deformities depends on?

A

-degree of deformity
-available joint ROM

PODMED2 (12 decks)

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