FABRICATING ORTHOTIC DEVICES HIGH YIELD

Question 1

what are the different types of rigid materials?

others

Answer 1

rohadur
polydor
polypropylene
TL 2100

graphite composite
TL-Blue
TL-61
Superform
variants of same concept

Question 2

what are the soft materials?

Answer 2

korex
plastazote
sponge

Question 3

what are the top cover materials?

Answer 3

spenco
leather
naugahyde

Question 4

how are top covers placed on the orthotic?

Answer 4

on the orthotic itself
under the metatarsal heads
under the toes

Question 5

what is the purpose of the top cover?

Answer 5

makes the orthotic look better, not a necessity and can hold the foot on the device better

extending distally can stabilize the orthotic

Question 6

since positive cast is involved, what is an important step?

Answer 6

good bisection of the heel of the negative cast because this becomes the reference for further adjustments

Question 7

what are the three options for pouring the positive cast?

Answer 7

neutral or vertical
inverted
everted

Question 8

why is the negative cast lined with soap and water solution for pouring?

Answer 8

prevents poured plaster from sticking to plaster of negative cast

Question 9

after pouring, once dry and we remove the negative cast from surface of positive cast additions can we make?

Answer 9

add forefoot platform for intrinsic posting

add medial or lateral arch plaster fill
-minimal/maximal archfill

other

consider heel/STJ position

lateral expansion

Question 10

after modifications are made, how do we press the orthotic onto the positive cast?

Answer 10

heat orthotic material in an oven

press material onto positive cast

grind material into shape and width

add extrinsic post