prosthetics Flashcards
excessive knee flexion (prosthetic cause)
excessive dorsiflexion of the foot
excessive stiff heel cushion or plantarflexion bumper
excessive anterior placement of socket over the foot
misplacement of suspension and support structures of socket
insufficient knee flexion (prosthetic cause)
1) Excessive plantarflexion of foot
2) Overly soft heel cushion or plantarflexion bumper
3) Posterior placement of socket over foot
Valgus moment at knee prosthetic cause
1) Outset prosthetic foot
2) Abducted socket
Varus moment at knee (prosthetic cause)
1) Inset prosthetic foot
2) Adducted socket
Knee hyperextension (prosthetic cause)
1) Excessive plantarflexion of foot
2) Overly soft heel cushion or plantarflexion bumper
3) Posterior placement of socket over foot
Posterior pelvic rotation (prosthetic cause)
1) Prosthesis too long
2) Plantarflexed foot
Early knee flexion
drop off) (prosthetic cause
1) Excessive anterior placement of socket over foot
2) Posterior placement of foot
3) Excessive prosthetic foot dorsiflexion or anterior bumper too soft
Delayed knee flexion
walking up a hill) (prosthetic cause
1) Excessive posterior placement of prosthetic foot
2) Plantarflexed prosthetic foot or anterior bumper too hard
Pelvic rise Swing phase (prosthetic cause)
1) Prosthesis too long
Swing phase (prosthetic cause) Decreased stride length on prosthetic side
1) Inadequate suspension
2) Prosthesis too short
Swing phase (prosthetic cause) Increased stride length on prosthetic side
1) Prosthesis too long
Swing phase (prosthetic cause) Decreased toe clearance
1) Prosthesis too long
2) Pistoning in socket-suspension
Swing phase (prosthetic cause) Increased toe clearance
none
Swing phase Lateral whip (prosthetic cause)
1) Internally rotated socket
2) Inadequate suspension
swing phase medial whip (prosthetic cause)
1) Externally rotated socket
2) Inadequate suspension
Excessive knee flexion (anatomical cause)
1) Flexion contracture of knee or hip
2) Weak quadriceps
Insufficient knee flexion (anatomical cause)
1) Pain, anterior and distal residual limb
2) Weak quadriceps
3) Overall joint laxity
4) Habit
Valgus moment at knee (anatomical cause)
1) Change in residual limb volume
Knee hyperextension (anatomical cause)
1) Pain, anterior and distal residual limb
2) Weak quadriceps
3) Overall joint laxity
4) Habit
Posterior pelvic rotation (anatomical cause)
3) Pelvic weakness
4) contractures
Early knee flexion (anatomical cause)
drop off
1) Pelvic/core weakness
Delayed knee flexion (anatomical cause)
walking up a hill
1) Weak hip extensors
Decreased stride length on prosthetic side (anatomical cause)
1) Volume change in residual limb
2) Pain in uninvolved limb
3) Hip flexion contracture on uninvolved limb
4) Knee flexion contracture involved side
5) Anxiety
Pelvic rise (anatomical cause)
1) Pelvic/core weakness
Increased stride length on prosthetic side (anatomical cause)
1) Pain in residual limb
Decreased toe clearance (anatomical cause)
1) Improper donning
2) Change in volume
3) Weak hip and knee flexors