Intro to Orthotics Flashcards Preview

Orthodics > Intro to Orthotics > Flashcards

Flashcards in Intro to Orthotics Deck (75)
Loading flashcards...
1

orthosis

any device added to the body to stabilize or immobilize a body part, prevent deformity, protect against injury, or assist with function

2

Some Basic Goals of Orthoses

Maintenance or correction of body segment alignment

Assistance or resistance to joint motion

Axial loading of the orthosis & therefore relief of distal weight bearing forces

Protection against physical insult

3

FO

foot orthosis

4

AFO

ankle foot orthosis

5

KO

knee orthosis

6

KAFO

knee ankle foot orthosis

7

HKAFO

hip knee ankle foot orthosis

8

HO

hip orthosis

9

Function of ideal orthosis:

Meets the individuals mobility needs and goals
Maximizes stance phase stability
Minimizes abnormal alignment
Minimally compromises swing clearance
Effectively pre-positions the limb for initial contact
Is energy efficient with the individual's preferred assistive device

10

Accomodative FO

When foot cannot attain neutral, FO may shim the gap to that fixed position


11

Corrective FO

May help the foot attain a neutral position

12

Metatarsal bars

flat surface placed behind the metatarsal head, that are used to relieve pressure from the metatarsal heads.

13

What are met bars designed to help?

to help metatarsalgia and relieve plantar pressure by adding a wedge of firm material across the sole of the shoe just proximal to the met heads

14

Most common orthosis

1. Dynamic AFO= DAFOs
2. Total contact: can be dynamic or solid
3. floor reaction

15

What are DAFOs designed for?

redistribute plantar pressures of spastic equinovarus from the anterior foot to the heel

16

What does the DAFO improve?

swing limb clearance, stride length, cadence, and self-selected walking speed of children with diplegic cerebral palsy

17

Height of met bars:

1/4 inch in vertical height

18

University of California Biomechanics Laboratory (UCBL)

Rigid plastic total contact design
Hind foot / mid foot correction
Heel cup extends proximal to inframalleolar area and distally to the metatarsal heads
Typically extends all the way to the end of the foot

19

What does UCBL control?

flexible calcaneal deformities (rearfoot valgus or varus) as well as transverse plane deformities of the midtarsal joints (forefoot abduction or adduction

20

What dsyfunction is an UCBL for?

subtalar joint instability
functional alignment of children and adolescents with flexible pes planus, a longitudinal arch deformity

21

Supra Maleolar Orthosis (SMO)

shortest type of AFO
Low profile design that crosses the ankle (extends more proximal than UCBL)
Less invasive trim lines than a standard AFO, better M-L control than UCBL

22

What is a SMO used for?

Designed to Control pes planus

23

Cut of SMO:

Rounded cut at the superior aspect of the SMO tells you it’s an SMO and typically they only go the metarsals. Allows toe off at terminal stance
lateral distal trim: to 5th met head
medial distal trim: proximal to 1st met head

24

Total Contact AFO:

provide better control of not only PF and DF but also inversion eversion

25

Plastic AFO indications

weight
cosmesis
total contact
change shoes

26

Plastic AFO contraindications

Edema
Insensate feet
Adjustability

27

Posterior leaf spring AFO

most common AFO, narrow posterior shell, no medial-lateral support

28

DF Assist (allowing ankle motion):

aggressive spring assist (tilts forward)

29

Carbon fiber:

energy returning

30

Spiral AFO

limited control in all planes