ABCOP Prosthetic Written Exam NEWEST ACTUAL EXAM
ABCOP PROSTHETIC WRITTEN EXAM NEWEST ACTUAL
EXAM COMPLETE 150 QUESTIONS AND CORRECT DETAILED
ANSWERS (VERIFIED ANSWERS) |ALREADY GRADED
A+||BRAND NEW VERSION!!
A patient with an above knee amputation has a prosthesis. During gait analysis
you find that she has knee instability while standing and you see knee buckling
with any weight shift. You suspect the cause of the instability is:
A) Prosthetic knee set too far posterior to the TKA line
B) Tight extension aid
C) Prosthetic knee set too far anterior to the TKA line
D) Weak hip flexors - Correct Answer-Prosthetic knee set too far anterior to the
TKA line
C - For knee stability in a prosthesis the knee is aligned posterior to the trochanter
knee ankle line. If the knee is set anterior to the TKA line the stability will be poor
and can cause buckling. An extension aid helps with extension during swing phase.
Weak hip flexors would influence swing through of the prosthetic limb but would
not cause knee instability
A forequarter amputation removes what structures:
A) Femur and half of pelvis
B) Femur and acetabulum
C) Arm, clavicle, and scapula
D) Arm and scapula - Correct Answer-Arm, Clavicle, & Scapula
1|Page
, ABCOP Prosthetic Written Exam NEWEST ACTUAL EXAM
A TT patient is seen in clinic. Upon examining gait you notice a mild extension
moment at the knee in stance phase. What could be the cause? Note: alignment is
proper:
A) Prosthetic keel too short
B) Prosthetic heel is too firm
C) Prosthetic Keel is too soft
D) Prosthetic heel is too soft - Correct Answer-Prosthetic Heel is too soft
Soft prosthetic heels will cause the ground reaction force to be anterior to the
knee whereby causing an extension moment in stance
Why is it necessary to utilize a Berkeley alignable componentry prior to final
fabrication of an exoskeletal prosthesis:
A) This will allow alignment changes in the final prosthesis
B) This will allow you to align the prosthesis properly as exoskeletal prostheses
cannot be re-aligned
C) This will make the prosthesis more cosmetic
D) None of the above - Correct Answer-This will allow you to align the prosthesis
properly as exoskeletal
Berkeley alignable componentry simulate endoskeletal componentry but differ in
that they are only utilized prior to final fabrication for alignment purposes. This
can save you time and the frustration of re-fabrication in exoskeletal applications
2|Page
, ABCOP Prosthetic Written Exam NEWEST ACTUAL EXAM
What muscle group would you expect to be the weakest in an above knee
amputee:
A) Hip flexors
B) Hip abductors
C) Hip extensors
D) Hip adductors - Correct Answer-Hip Adductors
Hip adductors would be expected to be weak due to their transection. The shorter
the amputation the weaker expected. Hip extension may be slightly weaker due to
the loss of the adductor magnus which also aides in extension
When flexing an AK socket to accommodate a flexion contracture what concurrent
alignment adjustment should also be made:
A) Dorsiflex the prosthetic foot
B) Plantarflex the prosthetic foot
C) Move the prosthetic knee anterior
D) Move the prosthetic knee posterior - Correct Answer-Move the prosthetic knee
posterior
When ever you flex an AK socket this move the prosthesis weight line posterior to
the prosthetic knee whereby decreasing knee stability. By making a linear
adjustment moving the prosthetic knee posterior knee stability can be
maintained. Note: always utilize manufacturer instructions for pinpointing knee
location with respect to the socket
3|Page
, ABCOP Prosthetic Written Exam NEWEST ACTUAL EXAM
An AK patient is seen in clinic. When ambulating the patient complains of knee
instability. What alignment change could possibly assist in regaining knee stability:
A) Flex the prosthetic socket
B) Move the prosthetic knee anterior relative to the socket
C) Move the prosthetic knee posterior relative to the socket
D) move the prosthetic foot posterior relative to the prosthetic knee and socket -
Correct Answer-Move the prosthetic knee posterior relative to the socket
By making a linear adjustment moving the prosthetic knee posterior we can
decrease ground reaction forces running posterior to the knee center whereby
promoting knee stability.
An AK patient is seen in clinic. When ambulating the patient complains of knee
instability. What alignment change could possibly assist in regaining knee stability:
A) Extend the prosthetic socket
B) Move the prosthetic knee anterior relative to the socket
C) Shorten the overall height of prosthesis
D) Move prosthetic socket posterior in relation to the prosthetic knee - Correct
Answer-Extend the prosthetic socket
By making an angular adjustment moving the prosthetic socket into extension we
can decrease ground reaction forces running posterior to the knee center
whereby promoting knee stability. Note: extend socket with caution as to not
cause hyperlordosis when range of motion at the hip is limited
Choose all answers that are considered benefits of polycentric knees: (3)
4|Page
ABCOP PROSTHETIC WRITTEN EXAM NEWEST ACTUAL
EXAM COMPLETE 150 QUESTIONS AND CORRECT DETAILED
ANSWERS (VERIFIED ANSWERS) |ALREADY GRADED
A+||BRAND NEW VERSION!!
A patient with an above knee amputation has a prosthesis. During gait analysis
you find that she has knee instability while standing and you see knee buckling
with any weight shift. You suspect the cause of the instability is:
A) Prosthetic knee set too far posterior to the TKA line
B) Tight extension aid
C) Prosthetic knee set too far anterior to the TKA line
D) Weak hip flexors - Correct Answer-Prosthetic knee set too far anterior to the
TKA line
C - For knee stability in a prosthesis the knee is aligned posterior to the trochanter
knee ankle line. If the knee is set anterior to the TKA line the stability will be poor
and can cause buckling. An extension aid helps with extension during swing phase.
Weak hip flexors would influence swing through of the prosthetic limb but would
not cause knee instability
A forequarter amputation removes what structures:
A) Femur and half of pelvis
B) Femur and acetabulum
C) Arm, clavicle, and scapula
D) Arm and scapula - Correct Answer-Arm, Clavicle, & Scapula
1|Page
, ABCOP Prosthetic Written Exam NEWEST ACTUAL EXAM
A TT patient is seen in clinic. Upon examining gait you notice a mild extension
moment at the knee in stance phase. What could be the cause? Note: alignment is
proper:
A) Prosthetic keel too short
B) Prosthetic heel is too firm
C) Prosthetic Keel is too soft
D) Prosthetic heel is too soft - Correct Answer-Prosthetic Heel is too soft
Soft prosthetic heels will cause the ground reaction force to be anterior to the
knee whereby causing an extension moment in stance
Why is it necessary to utilize a Berkeley alignable componentry prior to final
fabrication of an exoskeletal prosthesis:
A) This will allow alignment changes in the final prosthesis
B) This will allow you to align the prosthesis properly as exoskeletal prostheses
cannot be re-aligned
C) This will make the prosthesis more cosmetic
D) None of the above - Correct Answer-This will allow you to align the prosthesis
properly as exoskeletal
Berkeley alignable componentry simulate endoskeletal componentry but differ in
that they are only utilized prior to final fabrication for alignment purposes. This
can save you time and the frustration of re-fabrication in exoskeletal applications
2|Page
, ABCOP Prosthetic Written Exam NEWEST ACTUAL EXAM
What muscle group would you expect to be the weakest in an above knee
amputee:
A) Hip flexors
B) Hip abductors
C) Hip extensors
D) Hip adductors - Correct Answer-Hip Adductors
Hip adductors would be expected to be weak due to their transection. The shorter
the amputation the weaker expected. Hip extension may be slightly weaker due to
the loss of the adductor magnus which also aides in extension
When flexing an AK socket to accommodate a flexion contracture what concurrent
alignment adjustment should also be made:
A) Dorsiflex the prosthetic foot
B) Plantarflex the prosthetic foot
C) Move the prosthetic knee anterior
D) Move the prosthetic knee posterior - Correct Answer-Move the prosthetic knee
posterior
When ever you flex an AK socket this move the prosthesis weight line posterior to
the prosthetic knee whereby decreasing knee stability. By making a linear
adjustment moving the prosthetic knee posterior knee stability can be
maintained. Note: always utilize manufacturer instructions for pinpointing knee
location with respect to the socket
3|Page
, ABCOP Prosthetic Written Exam NEWEST ACTUAL EXAM
An AK patient is seen in clinic. When ambulating the patient complains of knee
instability. What alignment change could possibly assist in regaining knee stability:
A) Flex the prosthetic socket
B) Move the prosthetic knee anterior relative to the socket
C) Move the prosthetic knee posterior relative to the socket
D) move the prosthetic foot posterior relative to the prosthetic knee and socket -
Correct Answer-Move the prosthetic knee posterior relative to the socket
By making a linear adjustment moving the prosthetic knee posterior we can
decrease ground reaction forces running posterior to the knee center whereby
promoting knee stability.
An AK patient is seen in clinic. When ambulating the patient complains of knee
instability. What alignment change could possibly assist in regaining knee stability:
A) Extend the prosthetic socket
B) Move the prosthetic knee anterior relative to the socket
C) Shorten the overall height of prosthesis
D) Move prosthetic socket posterior in relation to the prosthetic knee - Correct
Answer-Extend the prosthetic socket
By making an angular adjustment moving the prosthetic socket into extension we
can decrease ground reaction forces running posterior to the knee center
whereby promoting knee stability. Note: extend socket with caution as to not
cause hyperlordosis when range of motion at the hip is limited
Choose all answers that are considered benefits of polycentric knees: (3)
4|Page
