Sample Test #1

Question 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

Answer 1

d) Weak Hip Extensors

Question 2

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

Answer 2

Initial Contact

Question 3

What is a characteristic of a constant friction knee?

Answer 3

reduces “heel rise” and terminal impact at normal cadance

Question 4

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

Answer 4

PF resistance is too firm

Question 5

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

Answer 5

Bursa

Question 6

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

Answer 6

Distal Edema

Question 7

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

Answer 7

15

Question 8

To check height of the prosthesis the amputee should:

Answer 8

Support their weight equally on both legs

Question 9

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

Answer 9

To facilitate shift of body weight

Question 10

Rotation of the foot at heel strike may be caused by

Answer 10

A stiff plantar flexion bumper

Question 11

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

Answer 11

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

Question 12

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

Answer 12

In 5 degrees of external rotation

Question 13

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

Answer 13

Flare and contour anterior-medial corner

Question 14

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

Answer 14

Socket was fit without enough initial flexion

Question 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 :

Answer 15

Adducted to stabilize the femur during locomotion

Question 16

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

Answer 16

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

Question 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?

Answer 17

25 lbs

Question 18

In TF, medial whip is caused by

Answer 18

Excessive lateral rotation of knee bolt

Question 19

In correction of a abducted socket we should:

Answer 19

Release the medial tilt screw and tighten the lateral

Question 20

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

Answer 20

Adductor Longus tendon

Question 21

When harnessing bilateral amputees , the harness should be

Answer 21

Centered over the vertebral column

Question 22

The FM wrist disconnect is not recommended for use on:

Answer 22

Shoulder Disarticulation amputees.

Question 23

The triceps pad is often used with:

Answer 23

Medium and short BE, Short and very short BE

Question 24

The polycentric hinge is used on which type of amputee:

Answer 24

Short below elbow

Question 25

The acromion is part of the:

Answer 25

Scapula

Question 26

The basic BE control motion is gleno-humeral :

Answer 26

Flexion

Question 27

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

Answer 27

90 degrees

Question 28

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

Answer 28

More extension dampening controls

Question 29

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

Answer 29

Ischial tuberoscity will fall into the socket

Question 30

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

Answer 30

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

Question 31

When hamstring muscles are tight at initial fitting of AK socket, what should yo do?

Answer 31

Relieve lateral border of scarpas Triangle

Question 32

The force applied to open the terminal device of a BE prosthesis is 7 lbs. How many pounds of force applied at the harness would provide acceptable efficiency?

Answer 32

10 lbs

Question 33

When a VO hand is opened, it is replaceing function normally provided by?

Answer 33

Extensor digitorium communis and lumbricals

Question 34

All of the following prehension patterns are provided by prosthetic hands except: a) Cylindrical b) Spherical c) Palmar d) Lateral

Answer 34

d) Lateral

Question 35

The main supinator of the forearm is:

Answer 35

Biceps

Question 36

What are friction wrists?

Answer 36

WE-500 WA-600

Question 37

T/F The brachioradialis assists in flexion of the elbow

Answer 37

True

Question 38

T/F The radius rotates around the ulna?

Answer 38

True

Question 39

T/F In the stable anatomical elbow, the only motion that occurs between the forearm and the humerus is flexion and extension

Answer 39

False

Question 40

Glenohumeral abduction is performed primarily by the deltoid muscle

Answer 40

True

Question 41

T/F Triple control simply means there is one cable for elbow flexion, one cable for terminal device operation, and a third for elbow locking

Answer 41

True

Question 42

The length of the AE humeral section is determined by measuring the sound side from the:

Answer 42

acromion process to the lateral epicondyle

Question 43

Where should the cross point for a figure 8 harness be located in relation to the 7th cervical vertebrae?

Answer 43

inferior and toward the sound side

Question 44

The brachioradialis is the primary:

Answer 44

Elbow flexor

Question 45

During dynamic alignment of an AK prosthesis, the patients trunk bends laterally toward the amputated side . This indicates what problem?

Answer 45

The foot is positioned too far laterally

Question 46

The Knee Disarticulation offers what features when compared to TF:

Answer 46

Distal End Bearing, Better Rotational Control, More functioning muscle intact.

Question 47

What adductor muscle is always transected in a knee disaticulation amputation?

Answer 47

Gracillis

Question 48

Myoplasty is ?

Answer 48

Surgery where the muscles are sewn together

Question 49

Two main functions of BK cuff suspension?

Answer 49

Prevents Rotation, Suspends Prosthesis

Question 50

In order to flex the elbow, the TH amputee with a Fig 8 harness must:

Answer 50

Unlocks the elbow and flexes GH joint

Question 51

The amount of humeral flexion required to fully flex the elbow of a TH prosthesis should not exceed:

Answer 51

45 degrees

Question 52

The shoulder disarticulation prosthesis is operated primarily by what control motion?

Answer 52

Scapular Abduction

Question 53

The PF bumper simulates what muscles?

Answer 53

Tibialis Anterior

Question 54

What are advantages of multi-axial ankles?

Answer 54

Absorbs Torque, Accomodates uneven ground, Minimizes shear forces on skin

Question 55

What are advantages of joint and corset prosthetic socket design?

Answer 55

Enhanced ML Stability Better Knee Extension Stop Greater Weightbearing Distribution

Question 56

During normal human locomotion, the primary function of the gluteus medias is to:

Answer 56

Maintain lateral stability of the pelvis.

Question 57

What are advantages of SCSP prosthetic socket design?

Answer 57

Enhances ML Stability Positive Knee Extension Stop Less pistoning during swing phase A self-supending prosthesis

Question 58

A BE prosthesis with flexible hinges should not inhibit flexion at the elbow more than:

Answer 58

10 degrees

Question 59

The primary advantage of VC terminal device is:

Answer 59

Graded Prehension

Question 60

What wrist unit provides the greatest ROM for a bilateral BE Amputee?

Answer 60

Wrist Flexion Unit

Question 61

What modification is made to the Fig 8 harness for the bilateral BE amputee?

Answer 61

The axilla loops are unecessary