FO & AFO Orthotics Flashcards

1
Q

FO: Soft Inserts

A

Metatarsal pad - allows more push off in weak or inflexible feet.

Cushion heel - relieves strain on plantar fascia (plantarfasciitis)

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2
Q

FO: Longitudinal Arch Support

A

UCBL (University of CA Biomechanics Lab)
Scaphoid pad
Thomas heel

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3
Q
Varus post (medial wedge)
"Rearfoot posting"
A

Reduces calcaneal eversion and IR of tibia after heel strike

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4
Q
Valgus post (lateral wedge)
"Rearfoot posting"
A

Controls calcaneus and subtalar that are excessively inverted and supinated at heel strike

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5
Q

Forefoot posting

A

Medial wedge - forefoot varus
Lateral wedge - forefoot valgus

*Contraindicated in insensitive foot

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6
Q

Heel Lifts

A

Accommodates for leg length discrepancy or limitation in ankle DF

Rocker bar - improves weight shift onto metatarsals
Rocher bottom - improves push off in weak or inflexible feet; can use with insensitive feet.

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7
Q

Limited Motion AFO

Anterior stop (DF stop)

A
  • If the stop allows slight DF (5 degrees), knee flexion results.
  • Can be used to control knee hyperextension
  • If too much DF is allowed, knee buckling could result
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8
Q

Limited Motion AFO

Posterior stop (PF stop)

A
  • if the stop allows slight PF (5 degrees), knee extension results.
  • Used to control unstable knee that buckles
  • If too much PF is allowed, knee hyperextension could result
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9
Q

AFO: DF Assist

A
  • Spring Assist (Klenzak housing)

- Posterior Leaf Spring (PLS) - to prevent foot drop

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10
Q

Molded AFO

A

** Contraindicated for patient with fluctuating leg volume!!

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11
Q

Posterior Leaf Spring

A
  • DF assist
  • Hold foot 90 degrees during swing
  • Displaced during stance
  • No mediolateral stability
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12
Q

Modified AFO

A
  • Provides more medio-lateral stability

- Control of calcaneal and forefoot inversion/eversion

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13
Q

Solid Ankle AFO

A
  • Controls (prevents) DF, PF, inversion, and eversion
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14
Q

Spiral AFO

A
  • Provides limited control of motion in all planes
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15
Q

Specialized AFO:

Patellar-tendon bearing brim

A
  • Allows weight distribution on the patellar shelf

- Reduces weight-bearing forces through the foot

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16
Q

Specialized AFO:

Tone-reducing orthosis

A
  • Applies constant pressure to spastic or hypertonic muscles (PF and invertors)