Intro to Orthotics (4) Flashcards
articulated AFOs
traditional and plastic
plastic orthosis
cut non-articulated at ankle
add ankle joint
what does an articulated AFO utilize
foot plate
ankle joint
what could the ankle joint be made out of
metal
plastic
metal
heavier
more durable
plastic
lighter
less durable
articulated AFO is
AFO w/ an ankle joint
general description of an articulated AFO
closure/strp
calf shell/metal uprights
metal/plastic ankle joint
foot plate or shoe attachment
foot plate
3/4
full
sulcus
ankle joint axis
single
single axis
only movement in sagittal plane
sagittal plane control
always limits M/L motion
what does the single axis allow/limit
DF and PF
ankle joint/static designs
limited motion
free ankle
solid ankle
limited motion –> ankle joint/static designs
allows balance and postural sway
few degrees in either direction
free ankle –> ankle joint/static designs
M/L control (single axis)
free DF/PF
solid ankle –> ankle joint/static designs
no motion in any direction
ankle joint/stops
posterior stop
anterior stop
adjustable
posterior stop
PF stop
locked at 90 degrees
no PF/free DF
posterior stop –> gait control
HS and swing
clinical use for posterior stop
CVA
neuropathy
DF weakness
posterior stop IS NOT
dynamic
anterior stop
DF stop
stopped at 90 degrees
no DF/free PF
gait control of anterior stop
MS to push off
clinical use for anterior stop
gastroc weakness
MD
knee flexion contracture
anterior stops are
rare and hard to find
adjustable stop
adjusted for various range of DF and PF
when is adjustable stop used
to correct contracture
LOM –> plane of control
sagittal
frontal
LOM –> muscle weakness
AP and ML muscles
LOM –> gait cycle
stance and swing
FREE –> plane of control
frontal
FREE –> muscle weakness
ML muscles