What is a transfemoral socket?
What is a transfemoral socket?
The transfemoral socket is the interface between the patient’s residual limb and the remaining prosthesis.
What is a PTB socket?
Bulbous Residual Limbs – The construction of a PTB socket, an inner liner and outer hard socket, allows for build-ups to be applied to the inner liner allowing easier donning and doffing for an amputee with a bulbous residual limb.
What is a total surface bearing socket?
Total surface bearing – A total surface weight-bearing socket expands on this concept by distributing forces across the entire residual limb surface. Advantages include reduced pressure on any given limb tissues, better sensory feedback to the user, improved circulation and increased proprioception.
What is a transtibial prosthesis?
A transtibial prosthesis replaces the function of missing anatomical segment(s) from below the knee to the floor. This excludes partial feet . The way we do it. The prosthetic socket is the main connection between the residual limb and the prosthesis.
What is quadrilateral socket?
The quadrilateral socket is a rectangular shaped socket and uses opposing forces to keep the ischial tuberosity (also known as your sit bone) upon a ledge built into the socket. This ledge is the main weight bearing area of the socket allowing you to stand comfortably and securely within the socket.
What is the most commonly used transfemoral socket design?
The most common type of suspension for transfemoral amputation is suction socket suspension. This is accomplished by the use of an air valve at the distal end of the socket and a well contoured socket that fits directly around the amputee’s skin of the stump to form a seal.
What is prosthetic socket?
The prosthetic socket is the device that joins your residual limb (stump) to the prosthesis. The socket is made just for you, according to the condition and shape of the residual limb. A ‘check socket’ can easily be changed (modified) to suit your shape, wearability and comfort if required.
What is a self suspending socket?
A self-suspended socket works based on its shape. These sockets are designed with a brim that firmly attaches to the residual limb. The brim extends and narrows over a joint to grab hold of the area, therefore creating a snug and secure effect.
What are prosthetic sockets made of?
A prosthetic device should most of all be lightweight; hence, much of it is made from plastic. The socket is usually made from polypropylene. Lightweight metals such as titanium and aluminum have replaced much of the steel in the pylon. Alloys of these materials are most frequently used.
What is Transhumeral prosthesis?
A transhumeral prosthesis is an artificial limb that replaces an arm missing above the elbow. Transhumeral amputees experience some of the same problems as transfemoral amputees, due to the similar complexities associated with the movement of the elbow.
What is Endoskeletal prosthesis?
The endoskeletal prosthesis has a tubular structure connecting the components and is covered by cosmetic foam. The primary components of the prosthesis are the socket, suspension system, foot, and knee unit. This terminology is different from that used by surgeons in describing the amputation levels.
How long does a prosthetic socket last?
Depending on your age, activity level, and growth, the prosthesis can last anywhere from several months to several years. In the early stages after limb loss, many changes occur in the residual limb that can lead to the shrinking of the limb. This may require socket changes, new liners, or even a different device.
What are the objectives of the ischial containment socket?
It describes several similar concepts in socket design in which the ischium (and in some cases the ischial ramus) are enclosed inside the socket. Objectives that would ideally be achieved in the ischial containment socket: Maintenance of normal femoral adduction and narrow-based gait during ambulation.
Why did the ischial socket replace the quadrilateral socket?
With the introduction of the ischial containment socket claims were made that the quadrilateral socket had been inadequate from its inception. It also was claimed that the ischial containment design was the answer to all problems than patients with transfemoral amputations may have.
Where does the suspension of a socket take place?
Socket PTB (Patellar Tendon Bearing) The weight bearing takes place below the patella, at the patellar tendon. The suspension is generated by a belt that is tightened around the distal part of the thigh.
What kind of material is a definitive socket made of?
Definitive sockets are laminated and can be made with fibreglass, carbon fibre, or nylon materials. Because it is the interface between the device and residual limb, the quality of the socket design, whatever the model used, is key and decides on user’s comfort and his/her ability to control the appliance.
