Prosthetic Sockets Fundamentals

Play an AI-generated podcast conversation about this lesson

What is the primary purpose of prosthetic sheaths?

To reduce friction, disperse moisture, and control bacterial growth (correct)
To provide additional support to the residual limb
To provide relief to the bony prominences
To cushion the distal end of the amputation limb

Which type of socket is more suitable for an individual with a stabilized limb volume?

Soft socket with polyethylene foam material
Hard socket with a resilient pad (correct)
Flexible socket with rigid external frame
Contoured socket with silicone gel

What is the advantage of using flexible sockets with rigid external frames?

It is more suitable for individuals with sensitive residual limbs
It results in a more comfortable socket (correct)
It provides additional support to the entire residual limb
It reduces friction and disperses moisture

What is the primary material used in fabricating soft socket liners?

Polyethylene foam (B) Signup and view all the answers

What is the primary reason why a prosthesis is often rejected?

Uncomfortable socket (B) Signup and view all the answers

Which type of socket provides better support and relief to the remaining bones, muscles, and soft tissues?

Contoured socket (C) Signup and view all the answers

What is the primary purpose of the thigh corset with knee joints?

To provide additional support for patients with mechanically unstable knee joints (A) Signup and view all the answers

Which type of suspension uses the proximal aspect of the patella as well as the femoral condyles to achieve suspension of the prosthesis on the residual limb?

Cuff strap (D) Signup and view all the answers

What is the primary function of the quadriceps bar of the patellar tendon-bearing (PTB) supracondylar socket?

To resist knee hyperextension and enhance suspension (B) Signup and view all the answers

What is the indication for using PTB supracondylar suspension?

When a patient wishes to do a lot of kneeling or cannot tolerate the quadriceps bar (A) Signup and view all the answers

What is the characteristic of roll on knee sleeves?

They are prefabricated from thin latex rubber or neoprene in different sizes (A) Signup and view all the answers

What is the advantage of using the quadriceps bar of the patellar tendon-bearing (PTB) supracondylar socket in patients with very short residual limbs?

It encompasses more surface area to share weight-bearing and provides stability for patients with mediolateral instability (C) Signup and view all the answers

What is the primary function of friction sleeves in prosthetic sockets?

To suspend the prosthesis on the residual limb using friction (C) Signup and view all the answers

What is a disadvantage of using friction sleeves?

They can lead to perspiration and hygiene problems (C) Signup and view all the answers

What type of suspension method involves a silicone sleeve with a short pin at the end?

Suction suspension (A) Signup and view all the answers

What is an alternative suspension method for transfemoral prostheses?

Strap suspension (D) Signup and view all the answers

What is the purpose of a silicone gel locking liner?

To enhance suspension of the prosthesis (A) Signup and view all the answers

Prosthetic Sockets Fundamentals

Choose a study mode

Podcast

Questions and Answers