Arch Supports Flashcards

1
Q

Wedging to the medial border of the arch support type of foot orthosis will provide additional?

A

Valgus stability

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2
Q

Additional varus stability may be achieved with an arch support type of orthosis by?

A

Wedging the lateral border

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3
Q

Forefoot supination may be achieved with An arch support type of foot orthosis by?

A

Posting (wedging) under the first metatarsal

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4
Q

Posting wedging under the 5th metatarsal heads of an arch support will

A

Pronate the forefoot

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5
Q

The component used to elevate the second, third, and fourth metatarsal heads in an arch support type of foot orthosis is called?

A

Metatarsal pad

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6
Q

Corrective floor reaction forces applied by an arch support type of orthosis during walking could be affected by?

A

The quality of fit of the shoe the patient is wearing

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7
Q

In selecting the footwear to be used with an arch support type of orthosis, the major factor to consider is?

A

That the shoe must provide a stable base of support.

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8
Q

An arch support type of foot orthosis provides stability of

A

longitudinal and transverse arches of the foot

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9
Q

The longitudinal arch can be raised by?

A

Adducting the forefoot

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10
Q

The longitudinal arch can be lowered by

A

Abducting the forefoot

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11
Q

The distal anterior edge of an arch support is often trimmed proximal to the metatarsal heads if the orthosis is only supporting the

A

Longitudinal arch

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12
Q

If relief is needed at the metatarsal heads, the distal anterior trim must

A

Extend distal to the metatarsal head

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13
Q

Taking an impression of the foot for an arch support should be done with the patient

A

Partial weight bearing and corrective forced applied

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14
Q

The use of elastic plaster bandage while taking an impression for a foot orthosis

A

Is recommended as the first wrap

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15
Q

Typically, footboards are classified according to

A

Heel heights

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16
Q

When taking an impression for an arch support type of foot orthosis while non-weight bearing, the hind foot and forefoot are

A

Held in neutral

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17
Q

A non plaster bandage impression of a foot can be taken by

A

Using a foam box impression

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18
Q

Areas of sensitivity on a foot should be marked while taking an impression do that?

A

The location of the areas of sensitivity transfer to the inside of the impression.

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19
Q

When applying corrective forces to the foot for which an impression is being taken, the orthotist must maintain the ankle and forefoot correction

A

Until the plaster bandage sets

20
Q

During the impression process for an arch support, the longitudinal arch can be raised by

A

Both adducting the forefoot and externally rotating the tibia

21
Q

During the impression process for an arch support, the longitudinal, arch can be lowered by?

A

Both abducting the forefoot and internally rotating the tibia

22
Q

The marking of bony prominences and landmarks of the foot prior to the impression process should include the

A

Navicular, base of the fifth metatarsal, and the distal trim line

23
Q

Sometimes, material is removed from the area of the arch on a cast of the foot in order to

A

Provide additional valgus stability

24
Q

Forefoot pronAtion can be achieved with an arch support type of foot orthosis by

A

Posting (wedging) under the 1st metatarsal

25
Q

Forefoot supination can be achieved with an arch support type of foot orthosis by

A

Posting (wedging) under the 1st metatarsal

26
Q

Removing plaster from the cast in the area just proximal to the metatarsal heads will

A

Elevate those met heads

27
Q

To relieve a bony prominence in an arch support, the cast should be

A

Built up 3mm in that area

28
Q

To increase the amount of medial support of an arch support, plaster should be

A

Removed in the area of the longitudinal arch

29
Q

An arch support is best evaluated on the patients foot

A

Prior to, during, and after ambulation

30
Q

Corrections should be made to an arch support if skin redness persists for more than

A

15 minutes

31
Q

Pressure on the metatarsal heads can be relieved by incorporating a metatarsal pad

A

Proximal to the metatarsal heads

32
Q

All bony prominences on a patients foot must be free from

A

Signs of excessive pressure

33
Q

During walking with an arch support, the patients heel should

A

Not slip(piston) causing irritation

34
Q

Under weight bearing, the foot orthosis must apply sufficient forced to

A

Stabilize the deformity and be comfortable

35
Q

If the patients skin shows areas of excessive pressure

A

The orthosis should be reformed in that area

36
Q

If the foot orthosis is to be stable in the shoe

A

The heel and forefoot must be flat and parallel

37
Q

Before fitting a foot orthosis to a patient

A

All edges should be rounded and smooth

38
Q

When the foot orthosis does not extend to the distal (anterior) tips of the toes, the distal anterior edge must

A

Be tapered to provide a thin comfortable surface

39
Q

The advantage of fabricating the foot orthosis from a thermoplastic material is

A

It can be easily reshaped

40
Q

The main disadvantage of using a foam box impression of patients foot is

A

Difficulty in holding corrective forces

41
Q

One technique for treating a heel spur with a foot orthosis is

A

To place rigid material around the spur and soft material under the spur

42
Q

By placing a rubber, tear shaped metatarsal pad on the plantar surface of the foot prior to wrapping with plaster bandage

A

Cast modifications for elevating the metatarsal heads is minimized

43
Q

Which of the following is generally true?

A

Accommodate rigid deformities and correct flexible deformities

44
Q

Which of the following motions and deformities are related?

A

Pronation, valgus, eversion

45
Q

Generally, the trim line with respect to the navicular bony prominence should be?

A

Proximal or distal to Alex of navicular

46
Q

To evaluate a foot orthosis for impingement on the distal margins of the malleoli

A

Invert and evert the subtalar joint.

47
Q

For an arch support type of foot orthosis to be successful, it must

A

Intimately fit the plantar surface of the foot