P&O upper ext & GAIT Flashcards Preview

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Flashcards in P&O upper ext & GAIT Deck (23):
1

center of gravity lies where in relation to the spine

5cm anterior to S2

2

normal base width (distance between heels)

6-10cm

3

normal cadence

80m/min; 3mph

4

normal step length

15-20 inches

5

Name the 6 determinants of gait

1. pelvic rotation
2. pelvic tilt/list
3. knee flexion in stance
4. foot mechanisms (ankle flexion/extension mechanisms)
5. Knee mechanisms
6. Lateral displacement of the pelvis

6

what is the percentage of increased energy expenditure in propelling a wheelchair in patients with paraplegia compared to ambulation in normal subjects

9% - cerny et al 1980

7

name the muscles that require strengthening to crutch walk (6)

crutch walking takes more energy than walking with a prosthesis

Lats
Triceps
Pec Major
Quads
Hip extensors
Hip abductors

8

Possible causes for foot slap on initial contact

moderately weak dorsiflexors

9

possible causes for the following (initial contact through midstance) (4)

- genu recurvatum
- excessive foot supination
- excessive trunk extension
- excessive trunk flexion

- weak, short, or spastic quads; compensated hamstring weakness, achilles tendon contracture, plantar flexor spasticity
- compensated forefoot valgus deformity; pes cavus; short limb
- weak hip extensor or flexor; hip pain; decreased knee range of motion
- weak gluteus max and quads; hip flexion contracture

10

Increased metabolic expenditure above normal:
Symes amputation

15%

11

Increased metabolic expenditure above normal:
Traumatic TT BKA

25%
short - 40%
long - 10%

12

Increased metabolic expenditure above normal:
traumatic bilateral BKA

41%

13

Increased metabolic expenditure above normal:
traumatic TF AKA

60-70%

14

Increased metabolic expenditure above normal:
traumatic bilateral AKA

>200%

15

Traumatic AKA and BKA

118%

16

Vascular TT BKA

40%

17

Vascular TF AKA

100%

18

In mangled extremity: amputation is considered if irreparable damage occurs to four of what six basic things?

skin
vessels
skeleton
nerves
extensor
flexor tendons

19

Name the components of an upper extremity prosthesis Rx (5)

1 terminal device
2. wrist unit
3. socket
4. elbow hinges
5. shoulder

20

Name the 4 different types of terminal devices

passive
body-powered
externally powered hook
externally powered hands

21

In a _____ socket, the socket and the forearm are set in initial position of flexion and the socket encloses the olecrenon and the epicondyle of the humerus.

Muenster socket

The intimate limb encapsulation, flexion attitude, and high trim lines provide suspension. Although there is some limitation in the range of flexion and suspension, this is compensated by preflexing the socket.

22

preprosthetic training should include what 7 things

1. limb shrinkage
2. muscle strength and ROM
3. postural problems
4. desensitization
5. scar mobilization
6. ADL assessment
7. HEP

23

what two functions are seriously affected by UE ampuation

forearme and humeral rotation