Prosthetic Fitting

The Cast

The first step in the fitting process is the making of a cast of the residual limb, in order that the socket (part which joins on to your residual limb) can be made. This is done by wrapping the residual limb in plaster bandage - just like the ones used to make a plaster cast for a broken bone. When the plaster is set, it is removed. Plaster of paris is poured into the cast to make a replica of your residual limb.

The Diagnostic Socket

The plaster replica of your limb is used to make a transparent socket using a thermoplastic material. The diagnostic socket enables the prosthetist to see 'inside' the prosthesis to check it is a good fit and that pressure, weight bearing and alignment are optimised.

Liners

To make the interface of the socket and residual limb a close and comfortable fit, liners are typically worn; these are made out of silicone or gel and are rolled on a bit like a sock or stocking.

The Definitive Socket

Once the prosthetist is satisfied that the diagnostic socket is a good fit, which may take more than one attempt, the definitive socket is made. It is made of a thermoplastic or composite material such as a carbon-fibre. The hardware incorporated into it connects to the mechanical part of the prosthesis. Most sockets that we fit today are held in place using suction, so no straps or belts are needed with the prosthesis.

The Hardware

Hardware is the term we use for the functional part of the prosthesis and depending on level of limb loss, different components are incorporated to restore function and support. There are many different types of prosthetic joints available. You will be advised by your prosthetist or rehabilitation consultant about the most suitable hardware for you.

The Cosmesis

The hardware is skeletal and mechanical in appearance. Many amputees are proud to wear their prosthesis without any cover but most will opt to have a life-like cover. The cover is made of foam, shaped to match the remaining limb to create the appearance of a normal limb. Some patients opt for a high definition silicone skin, which is custom made with lifelike tone and texture, including details such as freckles and hair. Your Prosthetist can discuss the options with you.