Sample Test #1 Flashcards Preview

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Flashcards in Sample Test #1 Deck (61)
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1

All of the following factors contribute to vaulting with a AK prosthesis except:
a) Prosthesis is too long
b)Excessive Knee Friction
c) Inadequate Suspension
d) Weak Hip Extensors

d) Weak Hip Extensors

2

The Gluteus Medius is most active during which phase of gait?

Initial Contact

3

What is a characteristic of a constant friction knee?

reduces "heel rise" and terminal impact at normal cadance

4

The toe of an AK prosthesis rotates externally at IC, what is a major cause?

PF resistance is too firm

5

A sac filled with heavy fluid that lies between and boney prominence is called:

Bursa

6

A lack of total contact in a PTB limb can cause:

Distal Edema

7

The A-P Measurement of a Bk amputee is taken at what degree of flexion?

15

8

To check height of the prosthesis the amputee should:

Support their weight equally on both legs

9

When walking, the normal foot should pass close to the AK prosthetic foot:

To facilitate shift of body weight

10

Rotation of the foot at heel strike may be caused by

A stiff plantar flexion bumper

11

If the Ischial Tuberoscity is placed too far toward the medial side of the ischial seat , it results in:

Crowding of the adductor muscles into small area, causing burning sensation

12

The knee bolt of a prosthesis is normally found to be:

In 5 degrees of external rotation

13

When the adductor longus tightness is observed during initial fitting of the AK socket you should:

Flare and contour anterior-medial corner

14

When AK amputee has to arch back in order to maintain COG

Socket was fit without enough initial flexion

15

As the AK amputee places their weight on the prosthesis the femur presses towards the lateral wall. Because of this the lateral wall should be :

Adducted to stabilize the femur during locomotion

16

The suction socket prosthesis is aligned so the involuntary alignment stability is minimized and voluntary knee control by stump action is emphasized

In order that a minimum amount of energy is consumed during walking

17

If a force of 10lbs is exerted on a 5 foot arm of a lever, what force must be exerted on the 2 foot arm to balance it?

25 lbs

18

In TF, medial whip is caused by

Excessive lateral rotation of knee bolt

19

In correction of a abducted socket we should:

Release the medial tilt screw and tighten the lateral

20

When pulling the amputee into the AK socket the most important anatomical landmark is the:

Adductor Longus tendon

21

When harnessing bilateral amputees , the harness should be

Centered over the vertebral column

22

The FM wrist disconnect is not recommended for use on:

Shoulder Disarticulation amputees.

23

The triceps pad is often used with:

Medium and short BE, Short and very short BE

24

The polycentric hinge is used on which type of amputee:

Short below elbow

25

The acromion is part of the:

Scapula

26

The basic BE control motion is gleno-humeral :

Flexion

27

The acceptable range of gleno-humeral flexion for AE prosthesis application is:

90 degrees

28

Pronounced terminal impact of a prosthetic knee indicates a need for:

More extension dampening controls

29

If the ML of the socket is too large: (AK)

Ischial tuberoscity will fall into the socket

30

What is the result of locating the toe break too far forward in the prosthetic foot

Gives amputee feeling of climbing a hill , causing excess energy consumption.