UE orthotics Flashcards
What is a SEW orthotic?
Shoulder Elbow Wrist orthotic
What is a WHF orthotic?
Wrist Hand Finger orthotic
What are the 3 purposes of orthoics?
Immobilization
Mobilization- create change in tissue through constant pressure
Restriction orthotic- prevent specific ROM
T or F: Mobilization orthotics use tissue stretching to gain new ROM
F, changes are made through living cells absorbing older collagen and replacing with new collagen thats oriented in the direction of tension
What is a serial static orthosis?
Serial - taken on and off and readjusted overtime
Worn for extended periods of time
removed during therapy/exercise
may be remolded if made from low temperature
What is a dynamic orthosis?
Allows outriggers and components that apply an elastic mobilizing force
dynamic orthosis typically use what kind of force
elastic
What is a static progressive orthosis
Applies low load force in one direction over long period of time
force is altered through progressive adjustment
T or F: The force in a static progressive orthosis is elastic
F
T or F: a dynamic orthosis is good for joint protection
F, provides limited protection
What kind of orthosis replaces functioning muscle/tendon after paresis
Can provide proprioception/exercise
dynamic orthosis
How many pressure points should an orthosis have
3
example: a strap securing the axis to provide a reciprocal middle force
T or F, you want to increase the area of force to disperse pressure when making orthotics
T
pressure is Force/area
What are the 2 most common positions of the hand for orthosis
Position of function
Position of rest
What is the position of function in the hand
Wrist:
MP:
PIP:
DIP:
Thumb:
Wrist: 20-30 ext
MP: 35-45 flex
PIP: 45 flex
DIP: relaxed flexion
Thumb: palmar abduction
What is the position of rest in the hand?
Wrist:
MP:
PIP:
DIP:
Thumb:
Wrist: 30-40 ext
MP: 60-90 flexion
PIP: extension
DIP: extension
Thumb: palmar abduction
Who usually uses high temp plastics
who usually uses low temp plastics
orthotist
therapist
What kind of orthotic is used by pouring plastic into a mold made from a cast of the body region
high temp plastic
more rigid and less easily remodeled
more durable
Between what temp do low temp plastics become malleable?
140 and 160
_______ plastic is better for fingers, _____ plastic is better for more proximal regions
thinner
thicker
Padding vs Stockinet
Padding protects pressure areas, needs to be replaced because it absorbs perspiration
Stockinet, helps absorb perspiration and improves comfort
easier to change than replacing bonded liner
Open cell vs close cell foam padding
Open cell- collapses with pressure, more absorbent
Close cell- air cannot escape, always some cushion
Monofilament line is utilized in what kind of dynamic orthosis
with low profile designs
Low profile vs high profile outriggers
Low profile- act as pulley
High proifle: direct attachment of dynamic components
-stick out/get in way
-less aesthetically acceptable
What kind of outrigger design is this
high profile
elastic component directly attaches to outrigger
What kind of outrigger design is this
low profile
serves as a pulley for elastic component
The pull of a dynamic component must be _______________
must pull perpendicular to bone
must maintain 90 degree pull as position changes
What kind of outrigger requires fewer adjustments to maintain 90 degree pull
requires less force
high profile
precautions for orthotic
Vascular compromise
Nerve injury d/t pressure
immobilization of non-involved strucutres
EDEMA, pay attention to changing size
skin injury
infection
compliance/safety
impaired mentation
how to we evaluate an orthotic for correct pressure on skin
have pt wear for 15-20 mins
take off and check for redness/blanching
47/60
