PROSTHETIC ASSISTANT LATEST 2026 EXAM QUESTIONS
AND ANSWERS MARKED A+
✔✔Describe manual locking knee [knee unit] - ✔✔- locking engaged for standing and
walking
- manually unlocked for sitting
- difficulty with clearance of leg
✔✔Describe microprocessor/computerized knee [knee unit] - ✔✔- knee stability in
stance and ability to flex in swing are controlled electronically
✔✔Describe single axis/weight activated stance control [knee unit] - ✔✔- permits knee
motions to occur around a fixed axis
✔✔Describe poly centric systems [knee unit] - ✔✔- changing axis of motion allows for
adjustments to center fo knee rotation
✔✔Describe hydraulic or pneumatic knee units [knee unit] - ✔✔- adjusts resistance
dynamically to individuals walking speed
✔✔Describe single axis/constant friction [knee unit] - ✔✔- continuous resistance
provided by a clamp that acts on the knee mechanism
✔✔Purpose of post-operative dressing (following amputation) - ✔✔- helps limit edema
- accelerate healing
- reduce post-operative pain
- shop residual limb
✔✔Types of post-operative dressings (following amputation) - ✔✔- elastic wrap
- stump shrinker
- semirigid shrinker
- rigid dressing
✔✔What prolonged positions should be avoided to prevent contractures following a
transtibial amputation? - ✔✔- hip flexion
- hip external rotation
- kne flexion
✔✔What prolonged positions should be avoided to prevent contractures following a
transfemoral amputation? - ✔✔- hip flexion
- hip abduction
- hip external rotation
, ✔✔Different transfemoral amputation gait deviations (with prosthetic use) - ✔✔-
circumduction
- abducted gait
- vaulting
- lateral trunk bending during stance
- forward flexion during stance
- lumbar lordosis during stance
- high heel rise
- terminal swing impact
- swing phase whip
- foot rotation at heel strike
- foot slap
- uneven step length
✔✔Transfemoral amputation gait deviation: possible cause(s) of circumduction - ✔✔-
long prosthesis
- locked knee
- small or loose socket
- inadequate suspension
- foot plantarflexed
- abduction contracture
- poor knee control
✔✔Transfemoral amputation gait deviation: possible cause(s) of abducted gait - ✔✔-
crouch or medial wall discomfort
- long prosthesis
- low lateral wall or malalignment
- tight hip abductors
✔✔Transfemoral amputation gait deviation: possible cause(s) of vaulting - ✔✔-
prosthesis too long
- inadequate suspension
- socket too small
- prosthetic foot set in too much plantarflexion
- too little one flexion
✔✔Transfemoral amputation gait deviation: possible cause(s) of lateral trunk bending
during stance - ✔✔- low lateral wall
- short prosthesis
- high medial wall
- weak abductors
- abductor contracture
- hip pain
- short amputation limb
AND ANSWERS MARKED A+
✔✔Describe manual locking knee [knee unit] - ✔✔- locking engaged for standing and
walking
- manually unlocked for sitting
- difficulty with clearance of leg
✔✔Describe microprocessor/computerized knee [knee unit] - ✔✔- knee stability in
stance and ability to flex in swing are controlled electronically
✔✔Describe single axis/weight activated stance control [knee unit] - ✔✔- permits knee
motions to occur around a fixed axis
✔✔Describe poly centric systems [knee unit] - ✔✔- changing axis of motion allows for
adjustments to center fo knee rotation
✔✔Describe hydraulic or pneumatic knee units [knee unit] - ✔✔- adjusts resistance
dynamically to individuals walking speed
✔✔Describe single axis/constant friction [knee unit] - ✔✔- continuous resistance
provided by a clamp that acts on the knee mechanism
✔✔Purpose of post-operative dressing (following amputation) - ✔✔- helps limit edema
- accelerate healing
- reduce post-operative pain
- shop residual limb
✔✔Types of post-operative dressings (following amputation) - ✔✔- elastic wrap
- stump shrinker
- semirigid shrinker
- rigid dressing
✔✔What prolonged positions should be avoided to prevent contractures following a
transtibial amputation? - ✔✔- hip flexion
- hip external rotation
- kne flexion
✔✔What prolonged positions should be avoided to prevent contractures following a
transfemoral amputation? - ✔✔- hip flexion
- hip abduction
- hip external rotation
, ✔✔Different transfemoral amputation gait deviations (with prosthetic use) - ✔✔-
circumduction
- abducted gait
- vaulting
- lateral trunk bending during stance
- forward flexion during stance
- lumbar lordosis during stance
- high heel rise
- terminal swing impact
- swing phase whip
- foot rotation at heel strike
- foot slap
- uneven step length
✔✔Transfemoral amputation gait deviation: possible cause(s) of circumduction - ✔✔-
long prosthesis
- locked knee
- small or loose socket
- inadequate suspension
- foot plantarflexed
- abduction contracture
- poor knee control
✔✔Transfemoral amputation gait deviation: possible cause(s) of abducted gait - ✔✔-
crouch or medial wall discomfort
- long prosthesis
- low lateral wall or malalignment
- tight hip abductors
✔✔Transfemoral amputation gait deviation: possible cause(s) of vaulting - ✔✔-
prosthesis too long
- inadequate suspension
- socket too small
- prosthetic foot set in too much plantarflexion
- too little one flexion
✔✔Transfemoral amputation gait deviation: possible cause(s) of lateral trunk bending
during stance - ✔✔- low lateral wall
- short prosthesis
- high medial wall
- weak abductors
- abductor contracture
- hip pain
- short amputation limb
