LE Prosthetics

Question 1

Causes of LE amputation. List by % occurrence

Answer 1

Dysvascular (66%)
Trauma (26%)
Tumor (5%)
Congenital (3%)

Question 2

What are the levels of amputation?

Answer 2

Transtibial (75%)
Transfemoral
Partial foot/transmetatarsal

Question 3

What amputee population has the lowest increased energy expenditure?

Answer 3

Transtibial amputees (9-20%)

Question 4

What amputee population has the highest increased energy expenditure?

Answer 4

Bilateral transfemoral amputees (up to 200%)

Question 5

Describe K-Level 0

Answer 5

Does not have the ability or potential to ambulate or transfer w/ or w/o assistance and the prosthesis does not enhance their quality of life or mobility

Question 6

Describe K-Level 1

Answer 6

Has the ability or potential to use prosthesis for transfers or ambulating on level surfaces at fixed cadence. Limited and unlimited household ambulator.

Question 7

Describe K-Level 2

Answer 7

Has the ability or potential for ambulating with the ability to traverse low level environmental barriers (curbs, stairs, uneven surfaces). Limited community ambulator.

Question 8

Describe K-level 3

Answer 8

Has the ability or potential for ambulating w/ variable cadence. Typical of the community ambulator who has the ability to traverse most environmental barriers and may have vocational, therapeutic or exercise activity that demands prosthetic utilization beyond simple locomotion.

Question 9

Describe K-level 4

Answer 9

Has the ability or potential for prosthetic ambulation that exceeds basic ambulation skills, exhibiting high impact, stress or energy levels. Typical of the prosthetic demands of the child, active adult or athlete.

Question 10

What are the 5 immediate post op concerns

Answer 10

Healing
Compression/limb shaping
Contracture prevention
Prevent scar adhesion
Preserve or regain strength and stamina

Question 11

What are the two purposes of the rigid removable dressing?

Answer 11

Contracture prevention
Fall protection

Question 12

What are the 3 main purposes of the shrinker

Answer 12

Control edema
Phantom pain/sensation management
Compression/limb shaping

Question 13

4 Types of suspensions

Answer 13

Pin-lock liner or lanyard
Suspension sleeve
Suction
Elevated vacuum

Question 14

Where is the pin-locking liner most commonly used?

Answer 14

Transtibial level

Question 15

Where is the lanyard most commonly used?

Answer 15

Transfemoral level

Question 16

Where is the sleeve suspension used?

Answer 16

Transtibial level

Question 17

Where is the suction (sealing liner) used?

Answer 17

Transtibial and transfemoral level

Question 18

Where is the suction (skin fit) liner used?

Answer 18

Only used at transfemoral level

Question 19

Where is the elevated vacuum used?

Answer 19

Transfemoral and Transtibial levels

Question 20

What are the four types of knee units

Answer 20

Manual locking
Stance brake
Polycentric
Hydraulic (microprocesssor)