ORTHOTICS AND PROSTHETICS BOARDS WRITTEN
EXAM TEST BANK 3 WITH LATEST CORRECTLY
ANSWERED QUESTIONS REVIEW / ORTHOTICS AND
PROSTHETICS BOARDS WRITTEN LATEST QUESTIONS
AND ANSWERS REVIEW - 150 QUESTIONS EXAM with
Questions and Answers/Plus a Rationale Updated 2026
A+/Instant Download PDF
EXAM COVERAGE
1. Biomechanics and Pathomechanics
2. Lower Limb Orthotics (LLO)
3. Upper Limb Orthotics (ULO)
4. Lower Limb Prosthetics (LLP)
5. Upper Limb Prosthetics (ULP)
6. Spinal Orthotics
7. Material Science and Clinical Gait Analysis
1. A patient with a transfemoral amputation exhibits a lateral trunk lean towards the prosthetic side
during mid-stance. What is the most likely cause if the socket is adducted?
A. The prosthesis is too long
B. The prosthesis is too short
C. Medial wall is too high
D. Socket is too tight
Answer: B
, CORRECT ANSWER : B
Rationale: A lateral trunk lean towards the prosthetic side during mid-stance often compensates
for a prosthesis that is too short, allowing the patient to clear the limb. A long prosthesis (A)
usually causes circumduction or hip hiking, while a high medial wall (C) causes abduction/pain.
2. During gait analysis of a patient with a transtibial prosthesis, you observe "drop-off" during
terminal stance. Which adjustment would most effectively address this?
A. Move the foot posterior
B. Move the foot anterior
C. Increase plantarflexion resistance
D. Decrease dorsiflexion resistance
Answer: B
CORRECT ANSWER : B
Rationale: Drop-off is caused by premature knee flexion in terminal stance, often due to an
excessively soft heel or the foot being placed too far posteriorly. Moving the foot anteriorly
increases the length of the lever arm, delaying the roll-over and providing more stability during
terminal stance.
3. A patient wearing a Milwaukee brace for scoliosis presents with skin irritation at the throat mold.
Which biomechanical principle is likely being violated?
A. Three-point pressure system
B. Distraction force application
C. Total contact fit
D. Transverse plane stabilization
Answer: B
CORRECT ANSWER : B
Rationale: The throat mold in a Milwaukee brace is intended for slight support and to remind the
patient to maintain posture, not to serve as a primary source of distraction force. Excessive
pressure here indicates the distraction force is being incorrectly applied through the cervical
components rather than the pelvic girdle.
,4. You are evaluating a patient with a Syme’s amputation. Which characteristic is critical for their
prosthetic socket design compared to a transtibial socket?
A. The need for patellar tendon loading
B. The need for a window or removable medial panel for donning
C. The need for proximal cuff suspension
D. The need for a total surface bearing design
Answer: B
CORRECT ANSWER : B
Rationale: Because the distal end of a Syme’s amputation is wider than the proximal limb (the
bulbous distal residual limb), a removable medial panel or window is required for the patient to
successfully don the socket. Patellar tendon loading (A) is specific to transtibial designs.
5. A patient with a C6 spinal cord injury is being fitted for a wrist-driven flexor hinge orthosis
(tenodesis orthosis). What is the primary requirement for successful operation?
A. Intact radial nerve
B. Functional wrist extensor muscles (ECRL/ECRB)
C. Active thumb abduction
D. Full passive range of motion in the fingers
Answer: B
CORRECT ANSWER : B
Rationale: A tenodesis orthosis utilizes active wrist extension to create passive finger flexion via
a cable system. Without at least Grade 3 or higher wrist extension (ECRL/ECRB), the patient
cannot mechanically activate the grasp function.
6. In a transfemoral prosthetic socket, which anatomical landmark is crucial for providing a stable
platform for weight-bearing?
A. Greater trochanter
B. Ischial tuberosity
C. Anterior superior iliac spine
, D. Pubic symphysis
Answer: B
CORRECT ANSWER : B
Rationale: The ischial tuberosity is the primary weight-bearing landmark in a traditional ischial
containment or quadrilateral transfemoral socket. Loading the greater trochanter (A) would be
painful and inefficient.
7. A patient presents with excessive knee flexion during early stance in a transtibial prosthesis.
Which adjustment is most appropriate?
A. Increase dorsiflexion
B. Increase plantarflexion
C. Shorten the prosthesis
D. Move the foot anteriorly
Answer: B
CORRECT ANSWER : B
Rationale: Excessive knee flexion (knee buckling) at heel strike is usually caused by excessive
dorsiflexion of the foot or a heel cushion that is too soft. Increasing plantarflexion (or hardening
the heel cushion) encourages earlier knee extension during the early stance phase.
8. Which material is most appropriate for a patient requiring an orthosis that needs to be rigid yet
highly adjustable after fabrication?
A. Carbon fiber
B. Polypropylene
C. Low-density polyethylene
D. Silicone
Answer: B
CORRECT ANSWER : B
EXAM TEST BANK 3 WITH LATEST CORRECTLY
ANSWERED QUESTIONS REVIEW / ORTHOTICS AND
PROSTHETICS BOARDS WRITTEN LATEST QUESTIONS
AND ANSWERS REVIEW - 150 QUESTIONS EXAM with
Questions and Answers/Plus a Rationale Updated 2026
A+/Instant Download PDF
EXAM COVERAGE
1. Biomechanics and Pathomechanics
2. Lower Limb Orthotics (LLO)
3. Upper Limb Orthotics (ULO)
4. Lower Limb Prosthetics (LLP)
5. Upper Limb Prosthetics (ULP)
6. Spinal Orthotics
7. Material Science and Clinical Gait Analysis
1. A patient with a transfemoral amputation exhibits a lateral trunk lean towards the prosthetic side
during mid-stance. What is the most likely cause if the socket is adducted?
A. The prosthesis is too long
B. The prosthesis is too short
C. Medial wall is too high
D. Socket is too tight
Answer: B
, CORRECT ANSWER : B
Rationale: A lateral trunk lean towards the prosthetic side during mid-stance often compensates
for a prosthesis that is too short, allowing the patient to clear the limb. A long prosthesis (A)
usually causes circumduction or hip hiking, while a high medial wall (C) causes abduction/pain.
2. During gait analysis of a patient with a transtibial prosthesis, you observe "drop-off" during
terminal stance. Which adjustment would most effectively address this?
A. Move the foot posterior
B. Move the foot anterior
C. Increase plantarflexion resistance
D. Decrease dorsiflexion resistance
Answer: B
CORRECT ANSWER : B
Rationale: Drop-off is caused by premature knee flexion in terminal stance, often due to an
excessively soft heel or the foot being placed too far posteriorly. Moving the foot anteriorly
increases the length of the lever arm, delaying the roll-over and providing more stability during
terminal stance.
3. A patient wearing a Milwaukee brace for scoliosis presents with skin irritation at the throat mold.
Which biomechanical principle is likely being violated?
A. Three-point pressure system
B. Distraction force application
C. Total contact fit
D. Transverse plane stabilization
Answer: B
CORRECT ANSWER : B
Rationale: The throat mold in a Milwaukee brace is intended for slight support and to remind the
patient to maintain posture, not to serve as a primary source of distraction force. Excessive
pressure here indicates the distraction force is being incorrectly applied through the cervical
components rather than the pelvic girdle.
,4. You are evaluating a patient with a Syme’s amputation. Which characteristic is critical for their
prosthetic socket design compared to a transtibial socket?
A. The need for patellar tendon loading
B. The need for a window or removable medial panel for donning
C. The need for proximal cuff suspension
D. The need for a total surface bearing design
Answer: B
CORRECT ANSWER : B
Rationale: Because the distal end of a Syme’s amputation is wider than the proximal limb (the
bulbous distal residual limb), a removable medial panel or window is required for the patient to
successfully don the socket. Patellar tendon loading (A) is specific to transtibial designs.
5. A patient with a C6 spinal cord injury is being fitted for a wrist-driven flexor hinge orthosis
(tenodesis orthosis). What is the primary requirement for successful operation?
A. Intact radial nerve
B. Functional wrist extensor muscles (ECRL/ECRB)
C. Active thumb abduction
D. Full passive range of motion in the fingers
Answer: B
CORRECT ANSWER : B
Rationale: A tenodesis orthosis utilizes active wrist extension to create passive finger flexion via
a cable system. Without at least Grade 3 or higher wrist extension (ECRL/ECRB), the patient
cannot mechanically activate the grasp function.
6. In a transfemoral prosthetic socket, which anatomical landmark is crucial for providing a stable
platform for weight-bearing?
A. Greater trochanter
B. Ischial tuberosity
C. Anterior superior iliac spine
, D. Pubic symphysis
Answer: B
CORRECT ANSWER : B
Rationale: The ischial tuberosity is the primary weight-bearing landmark in a traditional ischial
containment or quadrilateral transfemoral socket. Loading the greater trochanter (A) would be
painful and inefficient.
7. A patient presents with excessive knee flexion during early stance in a transtibial prosthesis.
Which adjustment is most appropriate?
A. Increase dorsiflexion
B. Increase plantarflexion
C. Shorten the prosthesis
D. Move the foot anteriorly
Answer: B
CORRECT ANSWER : B
Rationale: Excessive knee flexion (knee buckling) at heel strike is usually caused by excessive
dorsiflexion of the foot or a heel cushion that is too soft. Increasing plantarflexion (or hardening
the heel cushion) encourages earlier knee extension during the early stance phase.
8. Which material is most appropriate for a patient requiring an orthosis that needs to be rigid yet
highly adjustable after fabrication?
A. Carbon fiber
B. Polypropylene
C. Low-density polyethylene
D. Silicone
Answer: B
CORRECT ANSWER : B
