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Upper Extremity Prosthetics > Week 7 > Flashcards

Week 7 Flashcards

1
Q

What are the challenges for partial hand prosthetics?

A

Little room for components
cosmetically difficult
functionality limited with many designs

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2
Q

What are the different partial hand amputation level classifications?

A

Transphalangeal: thumb spared
Thenar partial or complete
Transmetacarpal, distal: thumb spared or involved
Transmetacarpal, proximal: Thumb spared or involved

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3
Q

What are the challenges for transphalangeal?

A

Difficulty holding small objects
Body image
Fine motor like typing can be painful and difficult

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4
Q

Do transphalangeal use a prosthesis?

A

No, most don’t

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5
Q

What are transphalangeal prosthetic options?

A 
cosmetic
Functional non-articulated
positional 
positional with "touch"
Active body powered
Externally powered
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6
Q

What are the two types of transphalangeal cosmetic prostheses?

A

Silicone

Vinyl

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7
Q

What are the aspects of the silicone cosmetic prosthesis?

A

Durable-non staining
realistic
high cost
long turn around

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8
Q

What are the aspects of the vinyl cosmetic prosthesis?

A

Less durable-stains
mass produced
less expensive
do it in the office

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9
Q

What are the advantages of the trans-phalangeal cosmetic prostheses?

A

cosmetic
protects residuum
some function: physiologic length, keyboard

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10
Q

What are the disadvantages of the trans-phalangeal cosmetic prostheses?

A

Less function: no articulation
decreased sensation
less durable: rugged activity destroys

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11
Q

What is the transphalangeal functional prosthesis/

A

3D printing finger tip-plastic

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12
Q

What are the advantages of the transphalangeal functional 3D prosthesis?

A

Extremely durable

very inexpensive

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13
Q

What are the disadvantages of the trans-phalangeal functional 3D prosthesis?

A

less cosmetic

less gripping strength: reduced friction articular surface due to hard material

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14
Q

What are the advantages of the trans-phalangeal functional static opposition post?

A

Provides opposition
can be made for specific tools
inexpensive

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15
Q

What are the disadvantages of the trans-phalangeal functional static opposition post?

A

cosmetics

does not allow for multi-positions

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16
Q

What is the trans-phalangeal positional?

A

Friction joints placed to desired position

cosmetic silicone cover

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17
Q

What are the advantages of the trans-phalangeal positional?

A

preposition for function

more cosmetic than rigid functional

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18
Q

What are the disadvantages of the trans-phalangeal positional?

A

no active articulation: limits prehension ability

less cosmetic than passive

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19
Q

What are trans-phalangeal sense of touch?

A

Friction joints with liquid filled bladder to transmit forces to residuum.
Invented by Leticia Cervantes industrial designer

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20
Q

What are the advantages of the trans-phalangeal sense of touch?

A

grip feedback

pre-positional

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21
Q

What are the disadvantages of the trans-phalangeal sense of touch?

A

less cosmetic

no active prehension

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22
Q

What does the trans-phalangeal mechanical work with?

A

multi-axes capturing and projecting proximal joint motion

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23
Q

What are the three types of trans-phalangeal mechanical prostheses?

A

x-finger from Didrick Medical
Bio-mechanical Prosthetic Finger (BPF) from RCM Enterprises
M-fingers from liberating technologies

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24
Q

What are the advantages of the trans-phalangeal mechancial?

A

increased function-due to articulation
can hold different shapes
x-finger: great ROM
BPF: plastic, durable

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25
What are the disadvantages of the trans-phalangeal Mechanical?
less cosmetic Less durable than static x-finger: insecure hold, long wait BPF: decreased ROM
26
What are the aspects of the M-Fingers?
Whole or partial finger replacement | Body powered: wrist flex-finger flex, wrist extend-finger extend
27
What are the advantages of the M-fingers?
increased fuction stronger grip force more durable
28
What are the disadvantages of the trans-phalangeal M-fingers?
less cosmetic increased bulk increased fabrication time
29
What are the trans-phalangeal externally powered devices?
Vincent fingers- Vincent systems, shorter-motor in finger itself ProDigits- touch bionics, too long for finger replacement
30
What are the advantages of the trans-phalangeal externally powered prostheses?
increased dexterity increased power less bulk high tech look
31
What are the disadvantages of the trans-phalangeal externally powered prostheses?
can't go in water less cosmetic than passive more bulk than passive
32
What are the challenges of the Thenar partial or complete?
no opposition for finger grip more debilitating than finger amputation fewer functional options
33
What are the different types of Thenar prostheses?
``` cosmetic static opposition post cosmetic Static opposition post functional positional thumb Active external powered thumb ```
34
What are the advantages of the thenar static opposition post cosmetic?
provides opposition for finger grips greatly increased function cosmetic protects the residuum
35
What are the disadvantages of the Thenar static opposition post cosmetic?
static opposition-can't change thumb position less function than articulated thmbs custom very expensive
36
What is the Thenar Static Opposition post functional made of?
Plastic Wood Carbon
37
What are the advantages of the Thenar static opposition post functional?
Simple low cost provides opposition
38
What are the disadvantages of the Thenar Static opposition post functional?
less cosmetic | only one position for opposition
39
What are the two types of Thenar positional thumbs?
M-finger from liberating technologies | Robin Aides-may no longer be avaliable
40
What are the advantages of the Thenar positional thumb?
different positions | finger opposition
41
What are the disadvantages of the Thenar positional thumb?
less cosmetic cannot-ab/adduct no active positioning
42
What is an active external powered thumb?
ProDigits from Touch Bionics
43
What are the advantages of the Active external powered thumb?
increased dexterity-active positioning increased power high tech look can have cosmetic cover
44
What are the disadvantages of the active external powered thumb?
cost-no medicare medicaid | cannot go in water
45
What is trans-carpel proximal or distal?
no fingers or thumb
46
What are the options for the trans-carpel proximal or distal?
``` cosmetic static post positional post activity specific wrist driven body powered external powered ```
47
What are the advantages of the trans-carpel proximal or distal cosmetic?
most cosmetic | gross motor bi-manual grasp
48
What are the disadvantages of the trans-carpel proximal or distal cosmetic?
little function | low durability
49
What are the advantages of the trans-carpal static post/
simple inexpensive strong grip determined by force generated with feedback
50
what are the disadvantages of the trans-carpal static post?
cosmesis | limited grip opening
51
What are the advantages of the trans-carpal CAPP multi-positional post?
provides opposition grip strength with feedback positioned at 30 and 54 degrees can be folded out of the way
52
What are the disadvantages of the trans-carpal CAPP multi-positional post?
cosmetics
53
What are the advantages of the trans-carpal tool specific?
specific tasks low cost ease of donning/doffing with other devices
54
What are the disadvantages of the trans-carpal tool specific?
cosmetics
55
What is the trans carpal wrist driven?
custom fabricated with movable wrist section clamps onto thumb
56
What are the advantages of the trans-carpal wrist driven?
strong grip with feedback | more cosmetic than post
57
What are the disadvantages of the trans-carpal wrist driven?
cosmesis | fine motor control
58
What are the advantages of the trans-carpal wrist driven 3D printed?
``` simple to favricate functional grasp extremely inexpensive parts easily replaced feedback on grip strength ```
59
What are the disadvantages of the trans-carpal wrist driven 3D printed?
less cosmetic | less functional than external powered
60
What are the advantages of the trans-carpal wrist driven M- fingers?
more cosmetic fine motor prehension grip strength with feedback opposable thumb
61
What are the disadvantages of the trans-carpal wrist driven M-fingers?
cosmesis bulky lighter than external power
62
How do the M- fingers move?
wrist extension=finger extension | wrist flexion= finger flexion
63
What are the aspects of the trans-carpal body powered VO or VC hook cable operated?
hook mounted in medial palm area bowden cable figure 9 operates glenohumeral flexion, biscapular abduction
64
What are the advantages of the trans-carpal VO VC hook cable operated?
fine prehension | if no wrist movement cable control
65
What are the disadvantages of the Trans-Carpal VO VC hook cable operated?
cosmesis harness and cable bulky
66
What is the trans-carpal external powered hook?
external powered opening hook myo or switch control battery powered
67
What are the advantages of the trans-carpal eternal powered hook?
ease of opening if weak upper body | fine prehension
68
What are the disadvantages of the trans-carpal eternal powered hook?
cosmesis bulky water intolerant
69
What are the advantages of the trans-carpal external powered otto bock hand?
``` shorter base than other standard powered hands standard XP hand covered by most 3rd payer and medicare cosmetic good grip dynamic mode control ```
70
What are the disadvantages of the trans-carpal external powered otto bock hand?
only one grip pattern bulky less cosmetic than anthropomorphic hands
71
What are the advantages of the trans-carpal external powered anthropomorphic hands?
multiple grasp options fine motor grasps many shapes ease of operation-myo or switch
72
What are the disadvantages of the trans-carpal external powered anthropomorphic hands?
expense water durability bulk
73
What two types of anthropomorphic hands are there?
Vincent finger | ProDigits
74
What must you keep in mind when dealing with partial hands?
complicated level many options creativity with whatever system multiple optional systems

Upper Extremity Prosthetics (14 decks)

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