PROSTHETICS FINAL EXAM REVIEW WITH
QUESTIONS AND CO RRECT ANSWERS
LATEST VERSION 2025-2026.
All of the statements are true about the shuttle lock system of suspension EXCEPT:
A. it can be used for TT and TF
B. it does not require an interface between the socket and the residual limb
C. it is easy to don for most individuals
D. It provides firm suspension without pistoning - ✔✔B. it does not require an
interface between the socket and the residual limb
Alignment of the components of both the TT and TF prosthesis is related to:
A. A line dropped form the hip through the knee to the ankle (TKA line)
B. ideal relationship of the thigh, knee and foot
C. the position of the foot at midstance of the unamputated leg
D. the relationship between the socket to the foot in stance - ✔✔A. A line dropped form
the hip through the knee to the ankle (TKA line)
A patient has been fitted with a patellar tendon-bearing (PTB) prosthesis, gel liner, shuttle lock
system, and blade foot. As the patient wears the prosthesis, the residual limb will shrink and
the patient will need to add residual limb socks to maintain socket fit. The socks are:
a. Never worn with the shuttle lock system; new sockets are made as the residual limb shrinks
b. Worn between the gel liner and the socket taking care to clear the distal end pin
c. Worn between the skin and the gel liner making sure the liner fits higher than the socks
d. Worn inside the gel liner but only at the very top of the socket so as not to interfere with
suspension - ✔✔b. Worn between the gel liner and the socket taking care to clear the
distal end pin
Prior to the prosthetic checkout process, all of the following should be completed EXCEPT:
, a. dynamic gait assessment of a new prosthetic wearer
b. Gross assessment of the strength of residual and nonamputated limbs
c. Residual limb inspection to identify any skin problems or painful areas
d. Gross assessment of the ROM of residual and nonamputated limbs - ✔✔a. dynamic
gait assessment of a new prosthetic wearer
During a static transtibial prosthetic checkout, the PT assesses the suspension of the socket by:
a. Checking that the foot is fully on the floor in standing
b. Placing a finger lightly at the edge of the socket and having the patient lift the limb straight
up.
c. Palpating the iliac crests with the client standing evenly on both feet
d. Inspecting the residual limb for skin irritations - ✔✔b. Placing a finger lightly at the edge
of the socket and having the patient lift the limb straight up.
A patient with a transfemoral amputation is ambulating with their prosthesis and you notice
that they are circumducting on the prosthetic side. All are possible causes for this gait
deviation EXCEPT:
a. too long of a prosthesis
b. Abduction contracture
c. too short of a prosthesis
d. too much knee friction or stability - ✔✔c. too short of a prosthesis
A physical therapist observes EXCESSIVE pistoning at the knee when a patient with a transtibial
amputation sits in a chair. Which of the following is the LEAST likely cause of this finding?
a. Too many socks donned
b. Too large a socket
c. Too small a socket
d. The patient does not have the prosthesis donned correctly. - ✔✔b. Too large a socket
QUESTIONS AND CO RRECT ANSWERS
LATEST VERSION 2025-2026.
All of the statements are true about the shuttle lock system of suspension EXCEPT:
A. it can be used for TT and TF
B. it does not require an interface between the socket and the residual limb
C. it is easy to don for most individuals
D. It provides firm suspension without pistoning - ✔✔B. it does not require an
interface between the socket and the residual limb
Alignment of the components of both the TT and TF prosthesis is related to:
A. A line dropped form the hip through the knee to the ankle (TKA line)
B. ideal relationship of the thigh, knee and foot
C. the position of the foot at midstance of the unamputated leg
D. the relationship between the socket to the foot in stance - ✔✔A. A line dropped form
the hip through the knee to the ankle (TKA line)
A patient has been fitted with a patellar tendon-bearing (PTB) prosthesis, gel liner, shuttle lock
system, and blade foot. As the patient wears the prosthesis, the residual limb will shrink and
the patient will need to add residual limb socks to maintain socket fit. The socks are:
a. Never worn with the shuttle lock system; new sockets are made as the residual limb shrinks
b. Worn between the gel liner and the socket taking care to clear the distal end pin
c. Worn between the skin and the gel liner making sure the liner fits higher than the socks
d. Worn inside the gel liner but only at the very top of the socket so as not to interfere with
suspension - ✔✔b. Worn between the gel liner and the socket taking care to clear the
distal end pin
Prior to the prosthetic checkout process, all of the following should be completed EXCEPT:
, a. dynamic gait assessment of a new prosthetic wearer
b. Gross assessment of the strength of residual and nonamputated limbs
c. Residual limb inspection to identify any skin problems or painful areas
d. Gross assessment of the ROM of residual and nonamputated limbs - ✔✔a. dynamic
gait assessment of a new prosthetic wearer
During a static transtibial prosthetic checkout, the PT assesses the suspension of the socket by:
a. Checking that the foot is fully on the floor in standing
b. Placing a finger lightly at the edge of the socket and having the patient lift the limb straight
up.
c. Palpating the iliac crests with the client standing evenly on both feet
d. Inspecting the residual limb for skin irritations - ✔✔b. Placing a finger lightly at the edge
of the socket and having the patient lift the limb straight up.
A patient with a transfemoral amputation is ambulating with their prosthesis and you notice
that they are circumducting on the prosthetic side. All are possible causes for this gait
deviation EXCEPT:
a. too long of a prosthesis
b. Abduction contracture
c. too short of a prosthesis
d. too much knee friction or stability - ✔✔c. too short of a prosthesis
A physical therapist observes EXCESSIVE pistoning at the knee when a patient with a transtibial
amputation sits in a chair. Which of the following is the LEAST likely cause of this finding?
a. Too many socks donned
b. Too large a socket
c. Too small a socket
d. The patient does not have the prosthesis donned correctly. - ✔✔b. Too large a socket
