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Home >> Services >> Prosthetic >> Lower extrimity >> Transfemoral Prostheses

Transfemoral Prostheses
 

Transfemoral amputation – can be fitted with either modular or exoskeletal designs. Modular transfemoral prostheses are a good example of the advances that have been achieved in prosthetics. Important innovation have been made concerning the fitting of prosthetic sockets, socket materials and industrially prefabricated prosthetic components. Thermoplastic materials and lamination resins have gradually replaced the use of wood for the construction of transfemoral sockets.

Design and fabrication of sockets can be carried out with the aid of a computer. Using special software, a positive model is carved based on measurements of the patient’s residual limb. This is used to fabricate a thermoplastic test socket.

A number of new designs have been added to the wide range of knee joints, prosthetic feet and adapters. For geriatric patients in particular, modules are employed to meet their needs with a high degree of stability and comfort [29].

Stability during stance face and control of the range of motion during swing phase are further demands the various knee joints must fulfill. Today, hydraulic stance face control makes it possible for user to walk down stairs step over – step, while electronic regulators help user walk at different speeds by adjusting resistance.

Selection of the knee joint the prosthetic foot depends on the patient profile, residual limb function and therapy goals as well as experience gained during the fitting. The foam cover of the modular prosthesis lends it a largely natural appearance. It is custom formed to the shape of the contralateral leg.

Many young and athletic patients do away with the cosmetic cover completely and prefer an athletic appearance for the prosthesis. By using specially – modified prostheses they are they are able to achieve amazing performances in disabled sports.

This fitted after surgical healing has proven successful. The pre –shaped socket made of thermoplastic material is shrunk directly to the contours of the residual limb by applying hot air.

This interim prosthesis is used until manufacture of the definitive prosthesis. It also supports the selection of the appropriate definitive prosthesis.

In the case of very short transfemoral residual limbs, the use of tilting sockets construction is sometimes the only possible solution. A hip joint with a lock is attached distally to the prosthetic socket. This may be disengaged for sitting.


 

 

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