CPT Residual Limb Management & Socket Design Flashcards
6 cards from real CPT practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 6 CPT Residual Limb Management & Socket Design flashcards as text
What is the primary purpose of residual limb wrapping (shrinker or elastic bandaging) after amputation?
Answer: Reduce edema and shape the residual limb for prosthetic fitting
Post-amputation wrapping controls edema and shapes the residual limb into a conical form that facilitates prosthetic socket fitting.
Which socket design for transfemoral amputees provides ischial containment by capturing the ischium inside the socket brim?
Answer: Ischial containment (IC) socket
The ischial containment socket design encloses the ischial tuberosity within the socket wall, providing improved mediolateral stability compared to the quadrilateral design.
What is 'volume fluctuation' in residual limb management and why is it clinically significant?
Answer: Daily changes in residual limb size that affect socket fit and comfort
Volume fluctuation refers to day-to-day and activity-related changes in residual limb size that can cause the socket to feel loose or tight, directly impacting prosthetic function.
What is the purpose of a prosthetic liner (e.g., silicone, urethane, or thermoplastic elastomer liner)?
Answer: Provides cushioning, suspension, and skin protection for the residual limb
Prosthetic liners serve multiple functions including cushioning, skin protection, and often provide the primary or secondary suspension mechanism for the prosthesis.
Which condition of the residual limb would most contraindicate the use of a silicone liner for suspension?
Answer: Fragile or compromised skin with open wounds or active skin breakdown
Open wounds or fragile skin on the residual limb are contraindications for silicone liner use as the liner's shear forces can worsen skin breakdown.
When applying an ace bandage (elastic wrap) to a transtibial residual limb, in which direction should wrapping begin to achieve proper shaping?
Answer: Distally and move proximally using a figure-eight pattern
Elastic bandage wrapping should start distally and progress proximally using figure-eight turns to apply greater compression distally, promoting the tapered cone shape needed for socket fitting.