Assistive Technology Upper and Lower Extremity Prosthetic Devices Review

These flashcards cover key concepts related to lower extremity prosthetic devices as discussed in the lecture. They highlight important definitions, components, and functionalities of various prosthetic systems.

What are the components of a transtibial prosthesis?

Foot-ankle assembly, shank, socket, suspension component.

What is a Syme's amputation?

Amputation at the ankle joint, leaving a weight-bearing stump.

What is the advantage of a hard socket for prostheses?

Relatively thin and durable, easily concealed under clothing.

What is the purpose of the energy storing/dynamic feet?

They bend under weight-bearing and recoil in late stance to assist during walking.

Name one disadvantage of solid ankle cushion heel prosthetic feet.

Recommended only for individuals with limited functional ability and provides minimal energy return.

What does the term 'patellar tendon bearing socket' refer to?

A socket design that concentrates force on pressure-tolerant areas of the residual limb.

What are soft inserts made from?

Closed cell foam, molded over a model of the limb.

What type of suspension system uses a neoprene or rubber sleeve?

Supracondylar cuff.

What are the indications for each variation of lower extremity prosthesis?

To accommodate different levels of amputation and individual patient needs.

What is the main function of the knee unit in a prosthesis?

To simulate normal gait by allowing smooth flexion and extension.

Name a type of knee unit that is weight-activated and provides stance control.

Weight-activated stance control unit.

What is a disadvantage of using an exoskeleton shank in prosthetics?

Less lifelike and does not permit changes in alignment.

What is the primary benefit of a flexible inner socket?

Allows the inner socket to adapt to the limb under pressure.

What does an ischial containment socket provide?

Greater mediolateral stability and support for short residual limbs.

What type of foot is most common in articulated prosthetics?

Single-axis feet.

What is the purpose of the suspension system in prosthetics?

To secure the prosthesis to the residual limb and provide stability during ambulation.

What characteristic distinguishes an endoskeleton shank?

It allows for alignment adjustments and has a more natural appearance.

What does soft interior lining in a socket help with?

It provides cushioning for sensitive areas of the limb.