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Flashcards in Quiz 1 Deck (86)
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1

which type of orthotic plastic can be reheated?

thermoplastics

2

what type of plastic can NOT be reheated?

thermosetting

3

what is considered when designing an orthotic?

comfort
cosmesis
sensation
durability
weight
cost
ease of donning/doffing
size and contour

4

how is bending moment determined

by the location and magnitude of the sheer forces

5

how are shear forces controlled

by strap location, strap tightness and width of the straps

6

the longer the orthosis......

the greater the leverage

7

what are the disadvantages of orthotics

-muscle atrophy
-joint contractures
-dependence
-skin issues
-poor cosmesis
-respiratory difficulties

8

what are flexible trunk orthoses (belts and corsets) mainly used for?

used mainly for symptom management in people with back pain

corsets are used to decrease pain by unloading the spine via increasing intra-abdominal pressure
sacroiliac belts increase passive stability`

9

what are postural training orthoses intended for?

improve body awareness; NOT correct deformity

10

goal of rigid spinal orthoses

limit spinal movement
protect the spine
facilitate healing
*** it uses a 3 point counter force system to control movement in the desired plane

11

what is the 3 column concept

wedge fractures involve the anterior column
burst fractures involve both the anterior and middle column

a fracture is labeled unstable if 2 adjacent columns are involved. They usually require surgical fixation, bracing or both

12

what are the 3 kinds of rigid LSOs

chairback
knight
bodyjack

13

what motion does a chairback LSO control?

controls flexion and extension

14

what kind of motion does a knight LSO control

controls flexion/extension and lateral flexion

15

what motion does a body jacket LSO control

controls all planes of motion

16

what levels of the spine doe TLSOs control

T5 - L4

17

What motion are TLSOs more effective at controlling than LSOs

TLSOs are better at controlling rotation

18

why is the lumbosacral region hard to stabilize?

this region has the greatest range for flexion/extension and bears the most load making it difficult to control

19

what TLSO controls flexion

the Jewett and the CASH

20

What TLSO controls flexion and extension

taylor spinal

21

what motion does the taylor knight spinal TLSO control

flexion/extension/lateral flexion

22

what population uses hyperextension braces and why

patients diagnosed with osteoporosis who had a compression fracture. the 3 point counterforce system prevents flexion

23

what are the indications for use of an occian back

for critically ill patients that have poor skin assessment
for patients unsafe to turn due to instability
for those not awake or alert within 24-48 hours after admission
for those with pre-existing burns, skin injuries or lacerations
** patients who want improved nighttime comfort

24

what is significant about the Philadelphia collar

stabilizes pt immediately after trauma
gives access to trach and carotid
waterproof

25

what is an advantage of the aspen vista collar?

it is adjustable to 6 different settings which reduces the need for inventory and also reduces skin breakdown while slicking away moisture

26

what orthosis proves the best stability for both the lower cervical and upper thoracic spine

CTOs

27

what device gives the most stable immobilizaton

the halo
it is the only way to stabilize the occiput to C2

28

what gives the most effective method of immobilizing C1-C2

the minerva which is a halo that does not drill into the skull

29

what is the purpose of bracing

to prevent progression of curve to a level as the patient grows

it is not intended to be curative

30

what is the eligibility for bracing

skeletally immature adolescents
risser scale of 0-2