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Biomechanics Exam 2 > Orthotic Modifications > Flashcards

Orthotic Modifications Flashcards

1
Q

modifications for FF pain

A

FF extension
FF extensions with MT head cutout
Neuroma pad

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2
Q

purpose of FF extension

A
  • improve shock absorbance (materials: poron, spinco)
  • improves foot contact
  • allows for modifications to be added
  • if decreased fat pad, FF extension will replace soft tissue (poron, #1 plastizone, spinco)
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3
Q

purpose of FF extension with MT head cutout

A

-off load 2nd MT to prevent hyperkeratosis

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4
Q

another name for neuroma pad

A

MT raise

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5
Q

what is a neuroma pad

A

a pad that is placed 1cm proximal to 2nd, 3rd and 4th MT head and medially from 1st interspace and laterally from the 4th interspace

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6
Q

purpose of Neuroma pad

A

help off load MT heads

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7
Q

Types of 1st Ray Modifications

A
  • 1st ray cutout
  • 1st ray cut out with 2-5 bar
  • Kinetic (Dynamic) Wedge
  • Dancer’s pad
  • Morton’s Extension
  • reverse Morton’s extension
  • cluffy wedge
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8
Q

purpose of 1st ray cutout

A

-encourages plantarflexion of 1st ray to increase dorsiflexion at 1st MPJ to allow for resupination

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9
Q

1st ray cutout cons

A

-lose some control b/c lose the distal medial corner of the device which is a control point

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10
Q

does a 1st ray cutout with 2-5 bar posts correct frontal plane corrections

A

NO!

-lifts up the MT in order to allow the 1st ray to function properly

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11
Q

1st ray cutout with 2-5 bar posts are for patients who

A

function in a PF position/significantly PF 1st ray

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12
Q

would you use a 1st ray cutout with 2-5 bar post for someone with hallux rigidus?

A

NO!

-pt would collapse over the medial side of the device and be in a lot of pain

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13
Q

purpose of Kinetic (Dynamic) wedge

A
  • takes advantage of when the 1st ray PF it also everts

- triangular wedge encourages 1st ray to PF and evert to allow for better 1st ray function

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14
Q

purpose of Dancer’s pad

A
  • used to accommodate 1st MT head issues

- used for hyperkeratosis of 1st MT head or for sesamoditis

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15
Q

can dancer’s pad be used for biomechanical dysfunctions?

A

NO, use to ACCOMMODATE 1st MT head only

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16
Q

what is Morton’s extension

A

-a 1st ray modification that extends to the IPJ of hallux and pushes up on the 1st MT head

17
Q

what is the purpose of Morton’s extension

A

-prevent hallux dorsiflexion

18
Q

when do you use Morton’s extension

A

-when you want to limit MT head dorsiflexion

19
Q

types of plantar fasciitis modifications

A
  • plantar fascial groove
  • heel lift
  • heel spur accommodation
20
Q

what is a plantar fascial groove

A
  • mark prominent plantar fascia on foot so it comes out on the negative which is transferred to the positive
  • grooves are addressed on the device so the pt can tolerate their orthoses
21
Q

purpose of heel lift

A

-reduce the compensation for equinus

22
Q

purpose of heel spur accommodation

A

-acts similar to a heel lift to reduce tension off of the plantar fasciitis

23
Q

if a heel spur accommodation works for other reasons other than a heel left you should

A
  • rethink your diagnosis

- maybe there is a bursitis

24
Q

types of modifications for severe pronation

A
  • medial flange
  • deep heel seat
  • extended medial heel post
  • inverted pour technique (Blake)
  • medial heel skive (Kirby)
  • lateral flange
  • medial heep post flare
25
Q

purpose of medial flange

A

-helps keep the foot from pronating over the edge of the device

26
Q

purpose of deep heel seat

A

-helps keep the calcaneus in a more rectus and less pronated position

27
Q

purpose of an extended medial heel post

A
  • modify one of the control points

- increase GRF on medial side to limit pronation

28
Q

do you modify the heel contour in an extended medial heel post

A

No

29
Q

purpose of an inverted pour technique (Blake)

A

-take the calcaneal bisection and then building up calcaneal bisection to 25,35 or 45

30
Q

what patient requirement is needed for an inverted pour technique

A

have to be flexible bc we are putting a major twist int he foot

31
Q

what is control point is being modified with an inverted pour technique

A
  • heel contour

- have to have a deep heel seat

32
Q

purpose of Medial Heel Skive

A
  • rasp off the medial tubercle of the calcaneal tuberosity area
  • increases GRF on medial side to prevent pronation
33
Q

what control point is modified with a Medial Keel Skive

A

-heel contour

34
Q

purpose of lateral flange

A
  • prevent calcaneus from everting

- prevents abduction of FF on RF

35
Q

lateral flange are used for — plane dominant issues

A

transverse

36
Q

purpose of medial heel post flare

A

-prevent excessive pronation by increasing GRF on medial side

37
Q

medial heel post flare cons

A

-if too much of a flare you get a medial lateral rotation of the foot b/c there is too much space in between

38
Q

modifications for lateral ankle instability

A
  • flat RF post
  • lateral heel post flare
  • lateral clip
39
Q

lateral heel post flare con

A

increase rapid pronation

Biomechanics Exam 2 (11 decks)

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