AT – AFOs Exam Questions And Answers
· Orthotics
- orthosis orthopedic device used to support/align, prevent/correct
deformity, substitute/enhance function, dec pain/discomfort
- common to prosthetics, more support and align vs replace -
correct answer ✅o An orthosis is an orthopedic device used to:
- Support and align
- Prevent or correct deformity
- Substitute or enhance function
- Decrease pain or discomfort
o Common to prosthetics; this is more to support and align limb vs
replace
· History
- theory still same but material more advanced + medical
knowledge
- metal and leather to thermoplastics, progress 2D linear approach
to 3D volumetric approach -
correct answer ✅o Theory in application is still the same but
materials are now much more advanced + medical knowledge
o From metal and leather to thermoplastics
o Progressed from a two-dimensional linear approach to a three
dimensional volumetric approach
,AT – AFOs Exam Questions And Answers
· Materials in Orthotics
- prior to 70s primarily stainless steel, aluminum, leather,
fabrication done by tracing/measurement
- skill starting to die out as see carbon composite and
thermoplastics -
correct answer ✅o Prior to the 70's, primarily stainless steel,
aluminum, leather
o Fabrication done by using tracing and measurements
o Skill is starting to die out as we see more carbon composite and
thermoplastics
Plastics - Quantum Leap
- conventional metal and leather clumsy, lots straps, attached
footwear and heavy, able wear only one pair shoes
- leather worn/stained and unsanitary, difficult clean while
thermoplastic is more clean and easy to maintain -
correct answer ✅Conventional metal and leather - fairly clumsy
and lots of straps; attached to footwear and heavy (only able to
wear one pair shoes at a time)
Leather can get worn/stained and unsanitary, difficult to clean and
do a lot with
, AT – AFOs Exam Questions And Answers
Thermoplastic - more clean, easy to maintain
New Materials:
- thermoplastic, carbon composite, silicone, low density foams for
padding -
correct answer ✅Thermoplastics
Carbon Composites
Silicone
Low density foams for padding
· Load/deformation curve
- elasticity, yield, plastic, failure; thermoplastic/composite, do not
overstretch
- indication to go back to more traditional form construction
w/steel/aluminum
- elastic material deform and return to original shape to yield point,
plastic after will not bounce back with deformation until failure
important with weight and size pt limb -
correct answer ✅o Elasticity, Yield region, Plastic region, Failure
point
o Thermoplastic and composite - do not overstretch material
· Orthotics
- orthosis orthopedic device used to support/align, prevent/correct
deformity, substitute/enhance function, dec pain/discomfort
- common to prosthetics, more support and align vs replace -
correct answer ✅o An orthosis is an orthopedic device used to:
- Support and align
- Prevent or correct deformity
- Substitute or enhance function
- Decrease pain or discomfort
o Common to prosthetics; this is more to support and align limb vs
replace
· History
- theory still same but material more advanced + medical
knowledge
- metal and leather to thermoplastics, progress 2D linear approach
to 3D volumetric approach -
correct answer ✅o Theory in application is still the same but
materials are now much more advanced + medical knowledge
o From metal and leather to thermoplastics
o Progressed from a two-dimensional linear approach to a three
dimensional volumetric approach
,AT – AFOs Exam Questions And Answers
· Materials in Orthotics
- prior to 70s primarily stainless steel, aluminum, leather,
fabrication done by tracing/measurement
- skill starting to die out as see carbon composite and
thermoplastics -
correct answer ✅o Prior to the 70's, primarily stainless steel,
aluminum, leather
o Fabrication done by using tracing and measurements
o Skill is starting to die out as we see more carbon composite and
thermoplastics
Plastics - Quantum Leap
- conventional metal and leather clumsy, lots straps, attached
footwear and heavy, able wear only one pair shoes
- leather worn/stained and unsanitary, difficult clean while
thermoplastic is more clean and easy to maintain -
correct answer ✅Conventional metal and leather - fairly clumsy
and lots of straps; attached to footwear and heavy (only able to
wear one pair shoes at a time)
Leather can get worn/stained and unsanitary, difficult to clean and
do a lot with
, AT – AFOs Exam Questions And Answers
Thermoplastic - more clean, easy to maintain
New Materials:
- thermoplastic, carbon composite, silicone, low density foams for
padding -
correct answer ✅Thermoplastics
Carbon Composites
Silicone
Low density foams for padding
· Load/deformation curve
- elasticity, yield, plastic, failure; thermoplastic/composite, do not
overstretch
- indication to go back to more traditional form construction
w/steel/aluminum
- elastic material deform and return to original shape to yield point,
plastic after will not bounce back with deformation until failure
important with weight and size pt limb -
correct answer ✅o Elasticity, Yield region, Plastic region, Failure
point
o Thermoplastic and composite - do not overstretch material
