Lower Extremity Prosthetic Overview

Question 1

What does a tibial tubercle height (AFO type) increase and spread

Answer 1

Increased toe lever arm

Spread forces over larger areas

Question 2

For sockets - transfemoral where is there 50% of weight on

Answer 2

Ischial tuberosity - the rest is through soft tissues

Question 3

For sockets - transfemoral what are the pressure sensitive areas

Answer 3

• pubic ramus
• symohysis pubis
• adductor tendon
• laterla distal femur

Question 4

What level is a a single axis feet used for

Answer 4

K2 and K3

Question 5

What level is a flexible keel used for

Answer 5

K2

Question 6

What level is a multi axis feet used for

Answer 6

K2-K4

Question 7

What level is a dynamic response feet used for

Answer 7

K3 , K4

Question 8

What level is a MPK feet used for

Answer 8

K3, K4

Question 9

What level is a hydraulic knee used for

Answer 9

K3 and K 4

Question 10

What is the fasted responding MPK knee

Answer 10

PLIE 2

Question 11

What is the most water resistant MPK knee

Answer 11

PLIÉ 2

Question 12

What knee has Sensors constantly monitor
the weight of the user and the
angle between knee and
thigh, providing real-time
information about the speed
and movement of the
prosthesis, as well as ground
reaction forces and any
bending movements

Answer 12

Rheo knee

Question 13

How should dynamic alignment be taken

Answer 13

Studied in midstance, foot flat on the floor and knee flexed slightly