AHPT 703 ORTHOTICS QUIZ 1 AND LECTURE 1
(Answered) 100% Correct, 2024/2025.
External prosthesis
aka transtibial transfemoral
2 types prosthesis
internal and external
assess LE for orthosis :
joint integrity
limb alignment
leg length
sensory assessment
skin
vascular supply
motor function
in which alignment is GRF maximum during SLS?
No difference between coxa valga, vara, or normal angle because the same amount of weight is still
distributed to the ground
in which alignment is JRF maximum during SLS?
coxa valga >125
which image (on R or L) represents a hip replacement and why? see slide 23
correct answer: image on L
- has higher JRF
- has shorter distance. vertical force increases, rotational forces decrease
Image on R
- more prone to breaking
- has more rotational forces
children with anteversion have toes pointing ____ and sit ____
in toeing
sit "w"
knee genu valgum is called ___
degrees ____
knock knees
> 190
knee genu varum -____ degrees
, < 180 deg
bow legged
how does angulation of the knee affect bos?
it affects the knee but not the BOS.
varum may increase postural sway and reduce stability and increase fall risk
infancy foot position:
foot pronated, 5deg toe outing, adducted forefeet
total vs segmental leg legnth
total = umbilicus to medial malleolus
segmental = greater trochanter to tibial platue. then to lateral malleolus. then the floor.
sensory problems put one at risk for developing:
blisters, abrasions, bruises, neuropathic ulcerations
and
impact postural control
upper vs lower motor neuron lesions :
upper: spasticity that is velocity dependent
ex: stroke or cerebral palsy
lower: flaccid, no tone
ex: peripheral n. damage, cauda equina sc injury
what does running do to the stance and swing phase?
running reduces the stance phase and increases the swing phase of gait
normal stance and swing phase % During gait :
stance=60%
swing=40%
steppage gait / foot drop sx:
high stepping during swing
exaggerated hip / knee flexion to clear foot
drag foot and toes while walking
crouch gait sx and cause:
increased knee and hip flex
knee flex during stance
toe walking
HS overactivity
calf weakness
in spastic diplegic cerebral palsy
(Answered) 100% Correct, 2024/2025.
External prosthesis
aka transtibial transfemoral
2 types prosthesis
internal and external
assess LE for orthosis :
joint integrity
limb alignment
leg length
sensory assessment
skin
vascular supply
motor function
in which alignment is GRF maximum during SLS?
No difference between coxa valga, vara, or normal angle because the same amount of weight is still
distributed to the ground
in which alignment is JRF maximum during SLS?
coxa valga >125
which image (on R or L) represents a hip replacement and why? see slide 23
correct answer: image on L
- has higher JRF
- has shorter distance. vertical force increases, rotational forces decrease
Image on R
- more prone to breaking
- has more rotational forces
children with anteversion have toes pointing ____ and sit ____
in toeing
sit "w"
knee genu valgum is called ___
degrees ____
knock knees
> 190
knee genu varum -____ degrees
, < 180 deg
bow legged
how does angulation of the knee affect bos?
it affects the knee but not the BOS.
varum may increase postural sway and reduce stability and increase fall risk
infancy foot position:
foot pronated, 5deg toe outing, adducted forefeet
total vs segmental leg legnth
total = umbilicus to medial malleolus
segmental = greater trochanter to tibial platue. then to lateral malleolus. then the floor.
sensory problems put one at risk for developing:
blisters, abrasions, bruises, neuropathic ulcerations
and
impact postural control
upper vs lower motor neuron lesions :
upper: spasticity that is velocity dependent
ex: stroke or cerebral palsy
lower: flaccid, no tone
ex: peripheral n. damage, cauda equina sc injury
what does running do to the stance and swing phase?
running reduces the stance phase and increases the swing phase of gait
normal stance and swing phase % During gait :
stance=60%
swing=40%
steppage gait / foot drop sx:
high stepping during swing
exaggerated hip / knee flexion to clear foot
drag foot and toes while walking
crouch gait sx and cause:
increased knee and hip flex
knee flex during stance
toe walking
HS overactivity
calf weakness
in spastic diplegic cerebral palsy
