General Transfemoral Components

Question 1

The ischial containment socket is also referred to as the:

Answer 1

Narrow ML Socket

Question 2

The hip joint and pelvic band provides a significant amount of mediolateral stability and rotational control but provides only minimal suspension.

Answer 2

False

Question 3

The term “instantaneous center of rotation” refers to the fact that:

Answer 3

In polycentric knee units, the location of the knee axis changes as the prosthetic knee moves through its available range of motion.

Question 4

The term “dampening” refers to the means by which the knee’s swing rate is controlled.

Answer 4

True

Question 5

With a weight activated stance phase control knee, it is necessary that weight be completely removed from the knee for it to function properly.

Answer 5

True

Question 6

A heart condition may contraindicate suction suspension.

Answer 6

True

Question 7

According to Michael Schuch, the most commonly used system for control of swing phase is:

Answer 7

Friction Control

Question 8

As ambulation velocity increases, the resistance against knee flexion must ____.

Answer 8

Decrease

Question 9

The ____ form of knee stability offered by the polycentric knee is advantageous for the hip flexors as they initiate flexion.

Answer 9

Beta

Question 10

Which type of knee is considered the least inherently stable and requires the most voluntary control?

Answer 10

Outside hinges

Question 11

Which type of knee is the considered the most inherently stable and requires the least voluntary control?

Answer 11

Manual Locking