TTA

Question 1

If pt has the ability or potential to use a prosthesis for transfer or ambulation on level surfaces at a fixed speed, they are considered what Medicare level?…

Answer 1

K1

Question 2

If a pt has the ability/potential for ambulation with variable cadence (my have exercise beyond simple locomotion) they are — Medicare level

Answer 2

K3

Question 3

If pt has ability/potential for ambulation on low level environmental barriers , their Medicaid level is a..

Answer 3

K2

Question 4

“normal” TTA is..

Answer 4

20-50% of limb is spared

Question 5

what part of a foot/ankle assembly determines the stability/mobility?

Answer 5

the KEEL length & material

Question 6

3 energy storing feet/ankles:

Answer 6

1. C-spring (i.e. Seattle foot)
2. Deflection plate
3. posterior leaf

Question 7

Advantages/disadvantages of the SACH foot (NAR/NES):

Answer 7

adv: light weight, inexpensive, common, all sizes; simple STABLE, quiet, low maintenance, DURABLE
Disadv: very LMTD mvmt, NES

Question 8

for a bariatric, inactive patient, what kind of ankle/foot assembly would be appropriate?

Answer 8

Heavy Duty NAR/NES for up to 350 pounds

Question 9

what is the SAFE foot?

Answer 9

NAR/NES, more flexible than the SACH BUT Heavier & MORE EXPENSIVE than SACH

Question 10

What is the Seattle foot? Is it better than the SACH/

Answer 10

NAR/ES; looks like an actual foot (yay!), heavier & costlier than the SACH BUT energy storing so depends on your purpose

Question 11

What kind of energy storing prosthetic is prescribed for geriatric patients?

Answer 11

Seattle Lite Foot

Question 12

What prosthetic foot has the highest mechanical energy return?

Answer 12

Deflection (90%) – but PLS also >90% nrg returning

Question 13

How expensive are the deflection plate and Seattle foot as compared to the SACH?

Answer 13

2x as a expensive

Question 14

what modification of the deflection plate allows for INV/EVR?

Answer 14

split toe and/or heel

Question 15

the feet high heels is adjustable up to ..

Answer 15

2 inches

Question 16

what is the only foot shown to reduce metabolic cost of walking?

Answer 16

PLS

Question 17

What would be a helpful foot for an arthritic patient?

Answer 17

PLS reduces wear on knee joints in arthritic patients

Question 18

in general, ankle joints’ disadvantages:

Answer 18

add weight and cost; also more complicated, less durable (bumpers and joints wear out) and noisy

Question 19

what kind of AR/NES allows for increased knee stability? WHY?

Answer 19

single axis – allows for inclines/declines

Question 20

what type of foot is useful on uneven terrain

Answer 20

AR/NES multiaxis

Question 21

what produces greater GRF forces - AR or NAR?

Answer 21

articulating

Question 22

what is the advantage of Proprio Foot applications?

Answer 22

Swing phase ankle DF

Remote foot adjustment

Question 23

what kind of shank would you use for preschoolers ?

Answer 23

exoskeleton ( more durable!)

Question 24

ideal socket material?

Answer 24

polypropylene - easy to clean, light, permanent

Question 25

what material should the liner be?

Answer 25

soft pelite or polyethylene

Question 26

The PTB socket emphasizes…

Answer 26

WBing on patellar tendon

Question 27

what type of PTB socket allows for ms expansion ?

Answer 27

ISNY PTB with a flexible inner PTB socket

Question 28

which interface DECREASES FRICTION

Answer 28

nylon socks

Question 29

if the patient has a thin thigh, what auxillary items should you add to the prosthesis?

Answer 29

supracondylar cuff (with a PTB socket)

Question 30

if a pt has HEAVY, MUSCULAR thighs then they should use — suspension system

Answer 30

sleeve (neoprene)

Question 31

what type of suspension system can facilitate hip flexion in swing phase?

Answer 31

waist belt with strap (ALSO doesn’t interfere with colostomy bag)

Question 32

if a patient has a history of mediolateral knee instability, what type of suspension would you prescribe?

Answer 32

subcondylar socket with a thigh corset – has uprights

Question 33

how do you know that a Silicone 3S is in the socket properly to provide suction between interface and skin?

Answer 33

3 clicks

Question 34

when donning a silicone suction TT, you must…

Answer 34

turn silicone liner inside out when powder the outside of the silicone liner by pouring in a little powder & shaking

Question 35

seal-in v 3S silicon suction

Answer 35

seal-in less maintenance, can fit longer limb, less pistoning BUT more difficult to don correctly

Question 36

what kind of sock can you use with a vacuum assisted TT?

Answer 36

do NOT use a fabric sock