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C-Leg® Technology

C-Leg® Technology

To do this, it takes advantage of microprocessor-controlled hydraulics, which adapt dynamically to all walking speeds, in real time. In addition, the microprocessor makes it possible to reliably secure the stance phase in both the C-Leg® and C-Leg® compact systems. This incredible control is made possible through the use of a sensor system. Fifty times a second an ankle moment sensor measures stress while a knee angle sensor reports angle and anglular velocity at the knee

The result is a system that recognises which phase of gait the amputee is in-and reacts accordingly. With C-Leg® technology, users are able to move about more easily-without having to focus on their prosthesis. Whether the user is going down stairs step-over-step, navigating a slope, or hiking along a rough forest path, the C-Leg reacts accordingly-right when it's supposed to. Even big crowds and low light are less of a problem with C-Leg® technology, because the prosthesis system is stabilized with a high level of resistance in stance phase, and will only switch to swing phase when certain criteria are met-helping to prevent stumbles and falls. C-Leg® technology offers users many advantages, including permanent stance phase control, the ability to weight the prosthesis during flexion, dynamic alignment, lower energy expenditure while walking, and relief for the sound side and the rest of the body.

More than 40,000 fittings with the C-Leg® leg prosthesis system around the world confirm the key advantages of this unique technology. The studies summarised in the literature overview (646B33=*) prove that C-Leg® users particularly benefit from the following:

  • Less frequent falls
  • Ability to walk without having to focus on walking
  • Increased activity with a larger range of movement
  • Enhanced confidence in the prosthesis

With the C-Leg® compact, those with lower mobility-and higher stability needs-can benefit from C-Leg® technology.

Proven Advantages of the
C-Leg®

The C-Leg® has been clinically evaluated more than any other leg prosthesis system. The numerous advantages proven in scientifically recognised studies are conveniently summarised in a literature overview.

Since its introduction, the influence of the C-Leg® leg prosthesis system on the fitting quality for leg amputees has been examined in numerous scientific studies with a wide variety of objectives. The C-Leg® is considered the most frequently evaluated and most comprehensively documented leg prosthesis system in technical literature worldwide.

As the number of different leg prosthesis systems and corresponding advertising claims by the manufacturers continues to increase, medical and biomechanical studies as well as technical literature are gaining more and more significance. They are the only way to assure the independent, objective assessment of practical benefits, and are therefore of key importance to various interest groups in the orthopaedic sector.

For the prescribing doctor and health insurer as well as the service provider and well-informed prosthesis wearer, they are essential for a thorough evaluation of the individual benefits.




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