Flashcards in BKA Prosthetic Components Deck (22)
How long is a temporary prosthesis usually used for?
3-6 months after surgery
Which BKA suspension is fitted immediately above the femoral epicondyles and can be used with or without a fork strap and waist-belt
Supracondylar cuff suspension
What kind of prosthesis does a patient with a small toe amputation need?
Usually no prosthesis is needed
For syme's prosthesis, how far up should trim line go?
To the patellar tendon
What BKA suspension is used when patellar tendon can't tolerate weight or when knee joint is unstable
What is the benefit of a supracondylar brim suspension?
Better mediolateral support
3 prosthetic feet available for syme's amputation
1. Solid Ankle Cushion Heel (SACH foot)
2. Stationary Ankle Flexible Endoskeleton (SAFE foot)
3. Energy-storing carbon fiber (low profile foot)
Which BKA suspension has medial and lateral walls extending above the femoral epicondyles
Supracondylar brim suspension
What BKA suspensions can be used for athletes?
Suction and pin
What is a disadvantage of using a sleeve suspension for BKA?
Which BKA suspension do you use to prevent genu recurvatum?
Supracondylar-suprapatellar brim suspension
3 socket design options for syme's amputation
1. Posterior opening
2. Medial opening
Which BKA suspension provides the most medial-lateral and anterior-posterior stability
How is the PTB socket aligned?
Slight flexion and slight lateral tilt
Disadvantage of supracondylar cuff suspension
Minimal medial-lateral stability and considerable pistoning
Is the medial or the lateral tibial flare a pressure-tolerant area?
Medial tibial flare
5 pressure-sensitive areas when using a patellar tendon bearing socket
1. Tibial crest, tubercle and condyles
2. Fibular head
4. Hamstring tendons
5. Distal tibia and fibula
What kind of prosthesis does a patient with a great toe amputation need?
Stiff sole, toe filler, molded insole, arch support
Most commonly used socket for BKA
Patellar Tendon Bearing Socket
What is the advantage of a suction BKA suspension?
Does not create pressure distributions
What is the main disadvantage of syme's amputation prosthetic fitting
Poor cosmesis because of the bulbous distal residual limb