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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
purpose of medial flange
-helps keep the foot from pronating over the edge of the device
26
purpose of deep heel seat
-helps keep the calcaneus in a more rectus and less pronated position
27
purpose of an extended medial heel post
- modify one of the control points | - increase GRF on medial side to limit pronation
28
do you modify the heel contour in an extended medial heel post
No
29
purpose of an inverted pour technique (Blake)
-take the calcaneal bisection and then building up calcaneal bisection to 25,35 or 45
30
what patient requirement is needed for an inverted pour technique
have to be flexible bc we are putting a major twist int he foot
31
what is control point is being modified with an inverted pour technique
- heel contour | - have to have a deep heel seat
32
purpose of Medial Heel Skive
- rasp off the medial tubercle of the calcaneal tuberosity area - increases GRF on medial side to prevent pronation
33
what control point is modified with a Medial Keel Skive
-heel contour
34
purpose of lateral flange
- prevent calcaneus from everting | - prevents abduction of FF on RF
35
lateral flange are used for --- plane dominant issues
transverse
36
purpose of medial heel post flare
-prevent excessive pronation by increasing GRF on medial side
37
medial heel post flare cons
-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
modifications for lateral ankle instability
- flat RF post - lateral heel post flare - lateral clip
39
lateral heel post flare con
increase rapid pronation

Biomechanics Exam 2 (11 decks)

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