Week 3 Flashcards

(32 cards)

0
Q

What are the socket design goals?

A

Contouring for functioning muscles
Stabilize skeletal structures
Broad pressure over neuro-vascular bundles
Forces distributed over wide area

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1
Q

What are the gluteal region muscle compartments?

A
Gluteus Maximus 
Gluteus medius 
Gluteus minimus 
Tensor fasciae latae 
6 deep lateral rotators
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2
Q

What are the characteristics of the quadrilateral socket design?

A

Four well defined walls
Rectangular in shape
Ischial-gluteal weight bearing

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3
Q

What are the characteristics of the ischial containment socket?

A

Femur help in adduction
Very intimate fit
Triangular shape

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4
Q

What are the advantages of the quadrilateral socket design?

A

Well documented

Consistent procedure for fabrication

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5
Q

What are the disadvantages of the quadrilateral socket design?

A

Not custom shape
Femur not held in adduction
Lack of support in medial wall

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6
Q

What are the advantages of the ischial containment socket?

A

Enhanced biomechanical stability
Increased medial wall support
Strong gluteal and hydrostatic loading
Restoration of pelvic-femoral angle

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7
Q

What are the disadvantages of the ischial containment socket?

A

Too many inconsistent designs

Requires skill to fabricate

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8
Q

Suction suspension is indicated for?

A
Long limbs 
Stable volume 
Good skin integrity 
Good upper limb strength 
Majority of patients
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9
Q

What are the contraindications for suction suspension?

A

Patients with volume fluctuation
Short residual limbs
Severe scarring
Upper extremity involvement

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10
Q

Who is silicone suction indicated for?

A

Longer residual limbs
Stable limb volume (can add socks)
No upper limb involvement

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11
Q

What are the contraindications for silicone suction?

A

Unstable limb volume
Upper limb involvement
Skin sensitivity to material

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12
Q

What are the advantages of silicone suction?

A

Provides positive suction suspension
Does not limit range of motion
Reduces shear forces

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13
Q

What are the disadvantages of the silicone suction?

A

Difficult to don
Skin reaction to material
Rotation control

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14
Q

The True Silesian Belt has a double or single anterior attachment?

A

Double anterior attachment

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15
Q

Modified Silesian Belt has a double or single anterior attachment?

A

Single anterior attachment

16
Q

What are the indications of the Silesian Belt?

A
Auxiliary suspension is required 
Rotational control needed 
When suction can't be used 
May aid in coronal control 
Patient security
17
Q

What are the contraindications of the Silesian belt?

A

When there is no need for frontal plane control (long limbs with good strength primary)

18
Q

What are the advantages of the Silesian belt?

A

Easy to don
May add coronal stability
Adjustable

19
Q

What are the disadvantages of the Silesian belt?

A

Increased straps and buckles

Increased bulk around waist

20
Q

Where is the pelvic band located?

A

Between the iliac crest and trochanter

21
Q

The Hip Joint & Pelvic band are indicated for?

A

Maximum ML control
Weak hip abductors or short residuum
Ease of donning is important, previous wearers

22
Q

What is a contraindication of the Hip joint & pelvic band?

A

When not needed/indicated

23
Q

What are the advantages of the Hip joint & pelvic band?

A

Easy to don, good swing phase control, increased ML stability

24
What are the disadvantages of the hip joint & pelvic band?
Extremely bulky Inherent pistoning Increased weight
25
What are the indications of suspenders?
Last resort Previous wearer Need to reduce forces around pelvis Patient with abdominal scarring
26
What is a contraindication of suspenders?
Whenever anything else will do
27
What are the two most important factors of the knee system?
Voluntary control | Inherent stability
28
What are the knee friction goals?
Primarily for swing phase To control knee friction Limit heel rise Prevent terminal impact
29
What are the knee friction types?
Mechanical friction Fluid friction Outside friction
30
Mechanical friction knee is?
``` Simple in design Adjustable Constant friction Static resistance to force Offers no stance phase stability ```
31
Fluid friction knee is?
``` Complex in design Heavier, more maintenance Dynamic resistance to force Offers some stance phase stability Smooth gait Patients with varying cadence ```