Modifications
Where are pressure tolerant areas?
Medial & Lateral flare, fibular shaft, Patella tendon, Anteromedial and Anterolateral tibia.
How do you get the heel down?
Flex the socket
What does every prosthesis include?
Socket, Suspension, Shank, Foot
Is diabetes a vascular disease?
No. It could lead to vascular diseases.
Why is pipe length important?
Too short of a pipe may not fit in the vice, Too long will not fit the vacuum vice (will need to cut)
Where/why do we add plaster to some areas?
Pressure intolerant areas, creates a relief and allows for less pressure to that area.
What does a prosthetist hang their hat on?
Fit of the socket
What is bench alignment?
flexion 5, adduction 5, toe out 5-7, inset foot 1/2", anterior socket 1/2 - 1 1/4"
What is muscle to muscle attachment?
Myoplasty
Why do we use baby powder before filling a cast?
Separating agent and allows us to strip the cast MUCH easier
If your patient is fleshy, would you remove more or less plaster?
What is parallel to line of progression?
Medial flare
When casting, how could you make the plaster set off faster?
By using hot water, rubbing/agitating the cast
What is the leading cause of lower limb amputation?
Vascular disease
Why do we skirt/splint our casts?
To make sure we have enough room for modifications and trim lines
The posterior brim of a PTB socket is how high?
3/8 in above MPT level
Why is there a relief in the posterior aspect of the socket (walnut shaped relief)?
Hamstring tendons
T/F we cast in 20 degrees of knee flexion to put hamstrings under tension.
False, causes hamstrings to relax.
What is limb ischemia?
when the limb isn't receiving enough blood, can cause further amputations.
What tool would you use for MPT modification.
full round, followed by half round
How much plaster is removed at MPT?
typically between 3/8 in and 1/2 in.
When might you use a Joint and Thigh lacer?
The patient has a lot of instability, little weight bearing ability on distal limb, very short limb. (there are others, if you need to clarify email any of us)
How can we stabilize swelling?
IPOP, Shrinker, Liner, elevation
What are benefits of IPOP's?
Limb has protection, reduce edema, influence limb shape, prevent contractors, and adapt limb to weight bearing
Why do we tap the cast after filling?
To get air bubbles out