Prosthetic Components & Design Flashcards
components
individusla parts of the prosthetic limb
trim line
edges of the prosthetic socket
fits down into
definitive prosthesis
the end product produced by the prosthetist
suspension
how the prosthesis is attached to the users residual limb
bench alignment
common relationship among components set by the prosthetist before any customizations are made
sockets are..
custom fit to the individuals residual limb
what can negative space in the socket cause?
can create a vacuum effect which can pull fluid down to the distal end of the limb
check socket
definitive socket that is adjusted after weight bearing through the limb
patellar tendon-bearing socket
- PTB
- selectively loads the patellar tendon and medial tibial flare
- off loads tender boney areas
- relief of fibular head
what is significant of the trim line of the patellar tendon bearing socket
it has a low posterior trim line to allow for hamstring tendons which will help allow full knee flexion
total surface bearing socket
- TSB
- distributes weight bearing over entire surface of RL
- difficult to make correctly
what is the goal of the total surface bearing socket
uniform pressure and reducing shear forces – bigger surface area
quadrilateral socket
- four walls that contain the thigh
what does the posterior shelf of the quadrilateral socket look like
flat
what is the importance of the flat posterior shelf
primary weight bearing surface for ischial tuberosity and glute muscles
