PROSTHETICS
Overview
Lower Extremity
Above Knee
Below Knee
Foot
Upper Extremity
Above Elbow
Below Elbow
Hand
Above Knee Prosthetics
An above knee (AK) or transfemoral (TF) prosthesis is custom made for a person who has had a AK or TF amputation. The prosthesis consists of a custom made socket, liner, knee, pylon, and foot. Sometimes the prosthesis may consist of a sleeve or other harness, depending on the suspension system used for that patient.
Beginning The Process
The process to start getting a AK prosthesis can start as soon as a few days/weeks after the amputation. The patient can be fit with a compressive garment that is used to help shape the limb for prosthetic process and reduce edema in the residual limb, also known as a shrinker. It is similar in concept to using ace wrap, but the benefit is that the same compression will be applied throughout the limb, even when donned by different people
Liners and Cat Scan
Then the patient will be fitted with a liner, a soft interface that the patient wears over the skin. It is donned before the socket. The main function of the liner is to absorb the forces created when ambulating in your prosthesis, to keep your residual limb healthy, and to allow you to wear the prosthesis for longer.
Diagnostics Sockets
The first prosthetic socket you will receive will be called a diagnostic socket. This socket will be made of a clear plastic, utilizing the appropriate suspension method (pin/locking, elevated vacuum, suction). The socket will be donned while the patient stands and puts weight onto the residual limb. Usually, these sockets are made to not be taken home by the patient at this time, but can be made to walk on to check alignment at the second diagnostic fitting appointment.
Laminated Final Socket
Once we have confirmed the diagnostic prosthetic socket fits the patient well, we can move on to the laminated socket. The laminated socket is fabricated using carbon fiber, which means it is much lighter than the plastic socket and has a higher tensile strength. Carbon fiber is also more durable, son the socket will be able to last up to a few years, depending on activity level and any limb changes. The patient can choose to have the socket custom designed/colored to meet their personality, which may to have the socket color match their skin tone or have their favorite sports team logo on the socket. Height and alignment will be adjusted accordingly. Gait training will be performed to help the patient get use to using the limb. Physical therapy will play an important part of gait training and strengthening their lower limb muscles outside of appointments with your prosthetist.
Prosthetic Knee
There are many different types of knees to choose from in the market today. When you are coming up with a plan for your prosthesis, your practitioner will ask you about your lifestyle and activities you participate in. This will include how far you walk, what sport(s) you play, are you on uneven terrain for camping, hiking, hunting, and how often you are on your feet.