Flashcards in P&O intro Deck (40)
a static or dynamic externally applied device use to improve function.
What are outcomes of orthotics?
Assist or limit mvmt.
Indications for orthotics
resists or directs force
maintains or attains a position
different materials that orthotics come in
Principles of design include
Pressure distribution (f/a)
Length of force arm
Ground reaction force
control degrees of freedom
3 pt. pressure system shows
2 supports on one side,
one on the other
how would you set up wc with 3 point pressure system to reverse decorticate posturing?
tilt the wheelchair.
corrects limb length discrepancies
reduce achilles tendon stress
redistribute fat pad to improve shock absorbtion (plantar fasciitis)
Reduces WB through metatarsals, Talocrural, and subtler joints
AFO patellar tendon WB
immobilize ankle jt, rocker bottom, able to adjust, doesn't unload distal structures
Greater trim lines in Orthoses used to control
a long foot plate resists pf __ than a short one
posterior leaf spring afo
normalized gait to decrease energy expedenture
what do the stops in the articulated afo help control
amt of mvmt in DF or PF
controls tibial advancement and helps maintain knee ext during mid stance.
ground reaction afo
ground reaction afo compensate for
KO designed to_____ but really it just ____
reduces chances. it's not as protective as the normal knee. sigh.
for these conditions what does the brace do:
-unload WB on lateral compartment
-unload WB on medial compartment
- use 3pt pressure system to redistribute WB
T-strap orthosis alters
how does patellar strap work?
decreases strain on patella by decreasing tendon angle
KAFO with WB through ischium does what
unloads proximal tibia and femoral condyles
PF __ extension force at knee