Upper Extremity Prosthetics

Question 1

What does disarticulation mean can happen

Answer 1

Have distal end weight bearing/contact

Question 2

Short transhumeral length

Answer 2

30-50%

Question 3

Standard transhumeral length

Answer 3

50-90%

Question 4

Very short transradial length

Answer 4

Less than 35%

Question 5

Short transradial length

Answer 5

35-50%

Question 6

Long transradial length

Answer 6

Greater than 50%

Question 7

True or False:

A long transradial amputation has supination/pronation which gives a better prognosis

Answer 7

True

Question 8

What is a voluntary open hook or hand

Answer 8

The hook or hand is always closed and has to be opened voluntarily

Question 9

What is a voluntary close hook or hand

Answer 9

The hook or hand is always open and has to closed voluntarily

Question 10

What determines the pinch force of a hook

Answer 10

Number of rubberbans

Question 11

True or False:

There are standard and heavy duty hooks

Answer 11

True

Question 12

What is the shape of the hook

Answer 12

Lyre-canted shape

Question 13

What does the lyre-canted shape allow for

Answer 13

Allows the patient to feed themself

Question 14

True or False:

The hand is interchangeable with a hook

Answer 14

True

Question 15

True or False:

The hand can be active or passive for cosmesis

Answer 15

True

Question 16

What fingers typically move in a prosthetic hand

Answer 16

Thumb, pointer, and middle finger (digits I-III)

Question 17

What type of grip does a prosthetic hand use

Answer 17

Three jaw chuck

Question 18

True or False:

Prosthetic hands can have a cosmetic glove that can be put on them

Answer 18

True

Question 19

True or False:

With a child we are trying to promote crawling and getting them upright

Answer 19

Trur

Question 20

What is the hook good at grasping

Answer 20

Small objects

Question 21

What is the hand good at grasping

Answer 21

Large objects

Question 22

True or False:

Use of the hook in restricted areas is better with the hook when compared to the hand

Answer 22

True

Question 23

True or False:

The weight, cost, and maintenance of the hook are less than the hand

Answer 23

True

Question 24

With unilateral amputees what is the purpose of the prosthesis

Answer 24

To serve as a helper

Question 25

True or False: For a unilateral amputee the prosthesis is not required to perform intricate delicate tasks they just use the intact limb

Answer 25

True

Question 26

True or False: | With a bilateral amputee all activities are performed with the prosthesis

Answer 26

True

Question 27

True or False: | With a bilateral amputee two hands are rarely provided in the design

Answer 27

True

Question 28

What does the wrist unit do

Answer 28

Attaches the terminal device to the prosthesis

Question 29

True or False: The patient will actively change the amount of pronation/supination with their intact limb or by pushing wrist against body to achieve the most functional position

Answer 29

True

Question 30

What does TD stand for

Answer 30

Terminal device

Question 31

True or False: | The wrist unit allows for interchange of terminal devices

Answer 31

True

Question 32

What are the 3 types of wrist units

Answer 32

1. Friction 2. Locking/quick release 3. Flexion

Question 33

What is a friction wrist unit

Answer 33

Compressed rubber washer that allows pronation/supination, it is oval or round

Question 34

True or False: | Most bilateral amputees wear bilateral friction wrist units

Answer 34

True

Question 35

What is the locking/quick release wrist unit

Answer 35

Manual rotation then lock terminal device in fixed position

Question 36

True or False: | locking/quick release wrist units have a button or three rings

Answer 36

True

Question 37

True or False: | A shorter limb makes holding the distal end of the limb in flexed position harder

Answer 37

True

Question 38

What is different about a Muenster style prosthesis

Answer 38

It encases the epicondyles for suspension

Question 39

What do you lose with the Muenster style prosthesis

Answer 39

Elbow flexion

Question 40

What type of harness system is used for a transradial amputation or wrist disarticulation (2)

Answer 40

1. Figure 8 | 2. Figure 9

Question 41

Where does the axillary loop go and its function

Answer 41

Contralateral arm to stabilize the prosthesis

Question 42

Where does the ring or cross point go

Answer 42

Below 7th cervical vertebra and toward the non-amputated side

Question 43

Where does the control attachment strap go

Answer 43

Lower scapula on amputated side to control cable

Question 44

Where does the anterior support strap or inverted Y go

Answer 44

Ipsilateral deltopectoral groove

Question 45

What do the harness systems offer (3)

Answer 45

1. Efficient suspension 2. Control of rotation 3. Tolerate axial load bearing

Question 46

What happens with a figure 9 harness

Answer 46

You lose elbow flexion

Question 47

How do you use the terminal device in a transhumeral amputation

Answer 47

By depressing the shoulder to lock the elbow before using the terminal device

Question 48

Almost the end of the semester you know what that means

Answer 48

8==D YAY DICKS!!!!!