Interface & Suspension - TT

Question 1

interface

Answer 1

anything b/w the RL and the socket

Question 2

fxn of interface

Answer 2

distribute pressure

pad bony prominences

reduce friction

reduce shear force

Question 3

what can an interface be

Answer 3

liner or insert

Question 4

the interface is not part of

Answer 4

the suspension

pressure distribution

etc.

Question 5

the interface can be part of

Answer 5

suspension

part of component that holds the prosthesis on

Question 6

the ability to fulfill its fxn depends on –> interface

Answer 6

the material of the interface

Question 7

if an interface is a liner or insert

Answer 7

primarily to pad or protect the RL

Question 8

materials of interface

Answer 8

pelite foam

silicon

gell

urethane

Question 9

pelite foam characteristics –>interface

Answer 9

not for suspension

insert of liner

inexpensive

compressible

does not reduce shear

Question 10

what is pelite foam used w/ –>interface

Answer 10

cuff suspension

Question 11

urethane is –>interface

Answer 11

all 3 materials

Question 12

characteristics of urethane –>interface

Answer 12

sock absorption

shear reduction

pressure distribution

can be for suspension

Question 13

what is the closest to normal physiologically –>interface

Answer 13

silicon

Question 14

urethane, gel and silicone can act as –>interface

Answer 14

suspensions and interfaces

Question 15

suspension

Answer 15

the component that holds the prosthesis on

Question 16

pistoning

Answer 16

distance prosthesis moves off the RL in NWB

Question 17

what does the amount of pistoning determine

Answer 17

the quality of the suspension

less pistoning = better the suspension

Question 18

types of suspension

Answer 18

suction suspension

supracondylar cuff

thigh corset

Question 19

silicon suspension

Answer 19

pin suspension/silicon sleeve

vacuum suspension/negative pressure

Question 20

pin suspension/silicon sleeve is

Answer 20

3S (silicon sleeve suspension)

shuttle lock

strap/lanyard

Question 21

vacuum suspension/negative pressure

Answer 21

w/ expulsion valve

w/ elevated suction

Question 22

3S suspension design

Answer 22

silicon sleeve

pin

shuttle lock

Question 23

silicon sleeve –> 3S

Answer 23

sleeve adheres to the skin on the RL

secures sleeve to RL

Question 24

pin –> 3S

Answer 24

attached to silicon sleeve

goes into shuttle lock

secures the sleeve to the prosthesis

Question 25

3S suspension is used w/

Answer 25

PTB socket

Question 26

advantages of 3S

Answer 26

minimal pistoning excellent suspension

Question 27

disadvantages of 3S

Answer 27

some movement difficulty getting pin into shuttle lock

Question 28

some movement --> disadvantages of 3S

Answer 28

b/w sleeve and socket stretching of the sleeve

Question 29

what can we use if needed during athletic activities --> 3S

Answer 29

auxiliary strap

Question 30

3S w/ strap (lanyard) system

Answer 30

has silicon sleeve like pin/shuttle lock system silicon sleeve attaches to pt skin has strap attached to sleeve has strap attached from sleeve to prosthesis

Question 31

negative pressure suspension

Answer 31

vacuum suspension

Question 32

vacuum suction w/ expulsion valve has

Answer 32

2 sleeves

Question 33

2 sleeves --> vacuum suction w/ expulsion valve

Answer 33

inner sleeve outer sleeve

Question 34

inner sleeve --> vacuum suction w/ expulsion valve

Answer 34

connects to leg

Question 35

outer sleeve --> vacuum suction w/ expulsion valve

Answer 35

connects to prosthesis

Question 36

vacuum suction w/ expulsion valve

Answer 36

air pushed out not in one way valve creates vacuum b/w the 2 sleeves

Question 37

what is vacuum suction w/ expulsion valve used w/

Answer 37

TSB socket

Question 38

suction w/ expulsion valve w/ liner that has built in seals

Answer 38

gel, silicon or urethane liner inner liner and outer liner

Question 39

suction w/ expulsion valve w/ liner that has built in seals characteristics

Answer 39

one way expulsion valve negative pressure creates vacuum b/w inner and outer

Question 40

what does the inner liner have built in --> suction w/ expulsion valve w/ liner that has built in seals

Answer 40

seals

Question 41

vacuum suspension/elevated suspension

Answer 41

harmony system (1 brand)

Question 42

design is the same as --> vacuum suspension/elevated suspension

Answer 42

suction w/ expulsion valve except...

Question 43

same, except --> vacuum suspension/elevated suspension

Answer 43

has pump to remove air sometimes pump is part of the foot

Question 44

vacuum suspension/elevated suspension has

Answer 44

2 sleeves vacuum b/w the sleeves

Question 45

advantages --> vacuum suspension/elevated suspension

Answer 45

high mm of mercury excellent suspension little to no pistoning

Question 46

disadvantages --> vacuum suspension/elevated suspension

Answer 46

sometimes negative pressure on limb not well tolerated number of socks bulky, esp in sitting

Question 47

harmony triton

Answer 47

pump built into the shank of the foot

Question 48

suspensions/axillary suspension

Answer 48

supracondylar cuff

Question 49

design --> supracondylar cuff

Answer 49

straps suspends over femoral condyles

Question 50

advantages --> supracondylar cuff

Answer 50

small no pressure on thigh

Question 51

disadvantages --> supracondylar cuff

Answer 51

fair/poor suspension moderate amount of pistoning not for obese pt

Question 52

uses today --> supracondylar cuff

Answer 52

sometimes used as auxiliary strap for other suspensions

Question 53

thigh corset

Answer 53

leather corset w/ orthotic knee joints

Question 54

where does the thigh corset suspend

Answer 54

around the thigh

Question 55

thigh corset has a

Answer 55

large area for suspension

Question 56

disadvantages of thigh corset

Answer 56

heavy, bulky, poor cosmesis moderate amount of pistoning results in thigh atrophy

Question 57

uses today --> thigh corset

Answer 57

total knee replacement

Question 58

which suspensions are the most common

Answer 58

pin or 3S

Question 59

least common suspension

Answer 59

number cuff