Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

6 Prosthetics & Orthotics > L7 Prosthetics Components > Flashcards

L7 Prosthetics Components Flashcards

1
Q

Parts of TT prostheses

A

socket
pylon
ankle
foot
suspension

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Parts of TF prostheses

A

socket
rotator
knee joint
pylon
foot

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Preparatory prosthesis

A

First prosthesis after amputation

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Definitive Prosthesis

A

provided after limb has matured and shape/volume has stabilized

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Bench alignment

A

done on a work bench in sitting

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Static alignment

A

with patient standing at parallel bars

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Dynamic Alignment

A

after observing gait

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Socket anterior

A

knee easier to flex

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Socket posterior

A

knee more stable, in extension

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Foot moved anterior

A

knee more stable

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Foot moved posterior

A

knee easier to flex

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Knee more stable in transtibial alignment

A

socket posterior
foot moved anterior

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Knee easier to flex in transtibial alignment

A

socket anterior
foot moved posterior

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Relative DF

A

inclines the prosthesis anteriorly

moves the knee joint center forward relative to GRF, promoting knee flexion at LR

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Relative PF

A

inclines the prosthesis posteriorly
moves knee joint center backwards relative to GRF, promoting knee extension throughout stance phase

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

TT Socket flexion

A

moves knee joint center anterior relative GRF

promotes knee flexion at LR

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

TT Socket extension

A

moves knee joint center posterior relative to GRF, promoting extension throughout LR and stance

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

Socket flex/ext is named for

A

alignment it produces in most distal residual joint

prosthetist can align the socket in some initial flexion for an individual with short hip or knee flexors

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

Transfemoral Bench alignment

A

proper fit helps pt to not feel weight of prosthetic

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

Pressure tolerant areas TT

A

patellar ligament
lateral fibular shaft
medial tibial shaft
lateral tibial shaft

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

Pressure sensitive areas TT

A

fibular head (moves as leg flexes)
lateral tibial flare
tibial crest
distal end of fibula/tibia
patella
anterior tibial tubercle
peroneal nerve
adductor tubercle

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

Pressure Tolerant Areas TF

A

ischium
soft tissue of residual limb

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

Pressure Sensitive Areas TF

A

greater trochanter
pubic tubercle
pubic ramus
pubic symphysis
distal end of femur
perineum

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

Sockets for Partial Foot amputations

A

toe filler w/carbon footplate
anterior shell AFO w/toe filler
full laminated socket w/carbon plate

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
Q

Partial foot prosthesis

A

toe filler with carbon footplate

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
26
Q

Types of Transtibial Sockets

A

patellar tendon bearing
supracondylar PTB
supracondylar suprapatellar
total surface bearing(indicated for all RL)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
27
Q

Patellar tendon bearing

A

TT

very extreme modifications to take up weight in specific areas of limb
older version

most weight through front and sides

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
28
Q

Transfemoral Socket Types

A

quadrilateral socket
ischial containment socket
sub ischial socket

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
29
Q

Quadrilateral socket

A

TF
no bony lock

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
30
Q

Ischial containment socket

A

TF
bony lock

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
31
Q

Interface types

A

skin fit
socks and sheaths
TPE gel
silicone
urthane

32
Q

Skin fit interfaces

A

mainly just TF sockets and somewhat rare

excellent fit is important

33
Q

Socks and sheaths

A

mainly preparatory TT sockets

34
Q

TPE gel Interface

A

most common for preparatory and definitive socket
3-9 mm thickness

35
Q

Silicone Interface

A

much thinner material than TPE
1-2 mm

36
Q

Urthane Interface

A

likely custom liner due to shape or invagination

37
Q

Joint and Corset Suspension

A

TT, used rarely, mainly now for short limbs and/or knee instability

KAFO on a prosthesis

38
Q

Supracondylar Suspension

A

TT, commonly used on short limbs or for pts having distal skin issues

suspended from condyles

39
Q

Wait belt with fork strap suspension

A

TT, indicated for people with distal sensitivity

unable or unwilling to use suspension sleeve

40
Q

Neoprene or gel suspension sleeve

A

TT, can be used by itself or with suction suspension
often used on preparatory sockets

41
Q

Suction with sleeve suspension

A

TT excellent option for healthy limb and/or active patient
controversially used for wound care

very positive suspension

42
Q

Pin lock suspension

A

TT, most commonly used suspension, easy don/doff

43
Q

Silesian belt suspension

A

TF
used for low activity suspension
can also be used with other suspension for lateral control

44
Q

Hip joint and pelvic band

A

commonly used for short limbs that have problems with conventional suspension

45
Q

Lanyard suspension

A

TF
common for preparatory sockets

46
Q

Types of Transfemoral suspension

A

vacuum
seal in liners
lanyard
hip and pelvic band
silesian belt

47
Q

Osseointegration

A

don’t use a socket b/c it goes directly into the bone

48
Q

Stiffer heel

A

creates more rapid DF and increases ease of knee flexion

49
Q

Soft Heel

A

provides increased pseudo-PF control and leads to more knee stability

50
Q

Keel

A

all but the heel of the prosthetic foot

51
Q

Length of keel

A

determines timing of heel rise

when GRF passes in front of keel, it causes toe extension on ant portion of foot

the extension moment will break the toe, the foot bends at the end of solid keel, helping heel to rise

52
Q

Heel lever

A

roughly the perpendicular distance from heel cushion to center of socket

53
Q

Toe lever

A

roughly the perpendicular distance from center of socket to end of keel

54
Q

Shortening the heel lever

A
  1. Locates the GRF more ant with respect to knee during LR and midstance, causing knee extension
  2. Increases toe lever, which sustains knee extension. Can prevent knee flexion if too long
55
Q

Lengthening the Heel Lever

A
  1. locates GRF posteriorly to knee at IC, producing knee flexion during LR
  2. Decreases toe lever, causing knee to flex in midstance or TS. Can cause drop off
56
Q

Drop off

A

results if toe lever is too short and knee flexes before the person is ready to accept weight on opposite leg

57
Q

Forward displacement of socket will

A
  1. increase the heel lever, creating GRF flexor moment at LR
  2. Decreases the toe lever
58
Q

Heel lever increasing…

A

desirable for those with TT amputation, helps with knee flexion in LR

not desirable for TF amputation if it makes knee more unstable

59
Q

Decreasing the toe lever…

A

shorter lever causes early heel rise and knee flexion

60
Q

Backward displacement of socket will

A
  1. Decrease the heel lever
  2. Increases toe lever
61
Q

Decreasing heel lever…

A

allows GRF to move anteriorly to the knee axis and promotes knee extension during midstance

62
Q

Increasing toe lever…

A

delays heel rise and supports knee extension longer in stance phase

63
Q

Solid ankle cushioned heel

A

non-articulating with rigid keel
cushioned heel for shock abs
allows for PF at IC
abrupt DF stop after midstance
lacks energy return
cannot accommodate to uneven surfaces

64
Q

Flexible Keel Foot

A

allows motion similar to SACH feet
able to conform to uneven terrain, remains supportive and stable during standing and walking

more realistic movements, still relatively rigid

65
Q

Single Axis Foot

A

articulated foot w/rubber bumpers simulating PF and DF

allows for motion in singular plane

improved knee stability during weight acceptance

lack energy return if not paired with dynamic response foot

66
Q

Multiaxial Foot

A

DF, PF, inversion, eversion, with carbon fiber energy return

adapts to varied surfaces

goes into foot shell

67
Q

Hydraulic Feet

A

multiaxis with shockabsorption, carbon foot plate with hydraulic controls

moderate to high energy return

adjusts to varied surfaces

smooth rollover stance phase

68
Q

Dynamic Response/Energy Return Foot

A

can be articulating or non-articulating

keel has the capability to store and return energy

may have split keel to allow for improve surface accommodation

69
Q

Microprocessor ankle

A

multiaxis

smooth computer controlled response to varied surfaces with some active push-off at different gait speeds

evaluates forces/resistance/surfaces with tech

70
Q

TKA that passes anterior to knee joint

A

inherently more stable than TKA that passes through the knee joint, but one that passes through the joint will provide voluntary control

71
Q

Single Axis Knee

A

also known as constant friction knee

difficult to reciprocate during gait

constant friction mechanism

single speed swing phase control

no stance control

72
Q

Polycentric Knee

A

-four bar linkage system provides for moving axis
-provides some control during stance and swing
-good for long RL, helps with toe clearance
-more fluid gait
-constant friction
-heavier than single axis

73
Q

Stance Control Knee

A

-weight activated friction brake stabilizes knee in any degree of flexion
-limited swing phase control, weight has to be off prosthesis to initiate swing
-good knee stability
-good for lower level ambulators that need stability and slow gait speeds

74
Q

Hydraulic Knee

A

variable friction for improved swing and stance phase control

greater variability than polycentric knee

more normal gait

75
Q

Pneumatic Knees

A

both pneumatic and hydraulic systems mimic muscles of natural knee by responding to varying walking speeds

hydraulic will be heavier than pneumatic, but provide smoother walking pattern

76
Q

Microprocessor Knee

A

allows for management of descending stairs and hills

requires charging

computer driven control for improved swing/stance control as well as stumble control

closest to normal knee motion

77
Q

To maximize stability of prosthetic knee

A

socket flexion
knee axis posterior to socket
ankle anterior to socket
soft heel cushion
soft shoe heel
low shoe heel

6 Prosthetics & Orthotics (11 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions