Prosthetic CPM troubleshooting ACTUAL QUESTIONS AND CORRECT ANSWERS

Prosthetic CPM troubleshooting ACTUAL
QUESTIONS AND CORRECT ANSWERS
Clues: bilstering/discoloration of distal limb (socket fit is correct) - Correct answers✔Problem:
milking on the limb due to donning the liner incorrectly

Solution: don liner without air at distal end



Clues: Upper extremity terminal device opening with elbow flexion - Correct
answers✔Problem: EFA too proximal

Solution: move EFA distal



Clues: Upper extremity terminal device will not open all the way - Correct answers✔Problem:
housing is impacting, crosspoint incorrect location, CAS too loose

Solution: check housing, move crosspoint distal to C7 and slightly to sound side, tighten CAS



Clues: TF pain and redness on lateral distal femur - Correct answers✔Problem: lack of ML
stability in the socket

Solution: ensure ischial containment, pad just proximal to distal lateral femur, adduct socket
slightly



Clues: Symes pain on medial/lateral malleolus - Correct answers✔Problem: too much pressure?
Not in socket all the way?

Solution: Make sure malleoli are reaching the appropriate reliefs, relieve area if necessary



Clues: Transtibial pain/redness on distal end, distal patella, and fib head - Correct
answers✔Problem: bottoming out

Solution: add sock(s)