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MSK III P3 Fall > 12] Advanced Gait Analysis And Biomech Foot Orthoses > Flashcards

12] Advanced Gait Analysis And Biomech Foot Orthoses Flashcards

1
Q

Normal Fick angle

A

5-18 degrees is normal

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2
Q

Normal femoral torsion angle

A

8-15 degrees

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3
Q

Normal tibial torsion angle

A

12-18 degrees

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4
Q

Sign of pronation

A

Too many oes sign

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5
Q

Midtarsal joint for pronation approach

A

Parallel

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6
Q

Which foot is rigid vs flexible

A 
Pronation = flexible foot
Supination = rigid foot
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7
Q

Rearfoot varus heel strike

A

Increased calcaneal inversion and pronation

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8
Q

Rearfoot varus at midstance

A

Supination from pronated position

- level arm less stable

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9
Q

Shearing for rearfoot varus

A

Callus under 2nd met head

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10
Q

Associated pathologies with rearfoot varus

A

Post tib tendonitis
Plantar fasciitis
Tarsal tunnel syndrome
Achilles tendonitis

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11
Q

Forefoot varus at heel strike

A

Calcaneal normal

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12
Q

Forefoot varus at midstance

A

Stays pronated

- lever arm less stable

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13
Q

Callus where for forefoot varus

A

Medical hallux at push off

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14
Q

Associated pathos for forefoot varus

A 
HAV
Plantar fasciitis
2nd met stress Fx
Metatarsalgia (Morten’s neuroma)
Achilles tendonitis
PFPS
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15
Q

Abductors twist observed when

A

Between flat foot and heel rise

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16
Q

What happens in abductors twist

A

Heel moves medially and forefoot ABDucts

- midtarsal it unlocks and STJ fails to resupinate so its flexible

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17
Q

Abductory twist is compensation for

A

Reduced ER higher up

18
Q

What is HAV

A

Hallux abductovalgus aka a bunion on the outside of your big toe

19
Q

During supination, midtarsal joints approach

A

Perpendicular

20
Q

Toe deformities seen with supination

A

Claw toe
Mallet toe
Hammer toe

21
Q

Forefoot valgus heel strike

A

Normal calcaneus but increased supination

22
Q

Forefoot valgus at heel strike

A

Begins pronating when it should be supinating

- lever arm less stable at push off

23
Q

Shearing for forefoot valgus

A

1st and 5th met heads

24
Q

What is there b.c of rigid foot with supination

A

Decreased shock absorption

25
Q

Associated pathos with forefoot valgus

A

Lateral ankle sprains
Peroneus longus tendonitis
Sesamoiditis
SI joint probs

26
Q

PF 1st ray is

A

Dropped 1st met - increased loading on 1st met

27
Q

Metatarsalgia

A

Pain at distal end of one or more metatarsals

28
Q

Metatarsalgia happens from ?

A

Overuse injury common in athletes who run and jump

29
Q

Signs and Sx of metatarsalgia

A

Gradual onset
Increased pain with walk/run
Calluses present

30
Q

Predisposing factors Of metatarsalgia

A 
Prominent met heads
Tight toe ext
Weak toe flex
Tight Achilles’ tendon
Excessive pronation
Cavus foot (high arch)
Morton toe (long second toe)
31
Q

Treatment for metatarsalgia

A

Metatarsal pads

32
Q

Important points of doing a slipper cast

A

Maintain subtalar neutral and neutral DF

Hold pts foot at 4th and 5th met heads which locks and loads DTJ

33
Q

Goal of biomechanical foot orthoses

A

To compensate for foot deformity

34
Q

Which shape is best for met pads?

A

Met dome shape b/c it reduced peak plantar pressures during running in ppl with flat feet

35
Q

Optimal placement of met pad

A

6-10 mm proximal to met heads (middle 3)

36
Q

Thomas heel promotes and limits?

A

Promotes RF varus and supports medial arch

Limits pronation

37
Q

Support under cuboid does what

A

Promotes ABDuction of foot

38
Q

Metatarsal bar does what?

A

Decreases pressure on met heads

39
Q

Rocker sole

A

Decreases pressure on met heads and used for decreased ankle lotion
- also helps assist in gait with propulsion

40
Q

Running shoes need minimal

A

Heel to toe drop

6 mm or less to allow normal loading

MSK III P3 Fall (19 decks)

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