C-Leg above-knee prosthetic leg

Enter now C-Leg Photo Contest

Everyday heroes move our lives forward – one step at a time. They overcome incredible challenges with strength that inspires all who are fortunate enough to experience it. To say thanks to all of the heroes out there, we’d like to give you the chance to receive the standing ovation you deserve.

A monthly prize winner will be selected on the first of each month. To be considered for the $1,000 Grand Prize, please enter by December 15, 2014. The winner will be announced on December 22, 2014.

Enter the contest now!

See all C-Leg Heroes pictures on facebook!

The C-Leg: proven to be the best. Now prove it to yourself.

Confidence in your next step!

Ottobock introduced the world to the very first fully microprocessor-controlled knee in 1997. The C-Leg caused an immediate sensation and has since become the most popular microprocessor prosthetic leg in history—with clinical studies to back it up. Since its introduction, over 40,000 people have taken advantage of the C-Leg’s proven function and stability and helped to make C-Leg technology the Standard of Care for above knee amputees.

Click on the red “hot spots” in the photo to dig deeper into the C-Leg system and its amazing technology.

Go to the Advantages for you tab below to learn how the C-Leg can transform the way you walk.

Ready to try one out?

Take a C-Leg Try Out

Comfortable connection.

To ensure a secure, comfortable fit, your socket will be created to uniquely fit your limb. The fit of the socket is so important that people can have trouble walking with the prosthesis – all because of a socket fit problem! To prevent that, you should work with your prosthetist to make sure your socket fits perfectly. Learn more about sockets and liners at Prosthetics 101

Hours of power

The Lithium-Ion battery provides you with 40 – 45 hours of power before re-charging is needed.

Smooth, natural strides

A “moment sensor” located in the tube adapter measures the movement of your ankle. From the moment your heel strikes the ground until your toe lifts off it, this sensor lets the microprocessor know exactly where you are in your walking cycle and provides the appropriate support.

Electronics calibrated to your individual gait

Algorithms based on thousands of gait cycles are built into C-Leg software. Working with you, your prosthetist programs the software to your gait. Gathering data from sensors in in real time, the C-Leg knows where you are in your gait cycle, and thus determines the resistance (support) you need.

A reliable, responsive foundation

Any of the Triton feet from Ottobock is a good match for your C-Leg. You get stability and control as well as outstanding dynamics, ready for everyday life and activities.

Protected electronics

Attached caps covering the electronics add security and improve protection from moisture and foreign matter. A few splashes here and there – no problem.

Constant measuring = stability as you walk

The “knee angle sensor” constantly measures the angle and speed of your knee joint. It gives the microprocessor the information needed for dynamic control during swing phase and stability while standing.

For a limited time only, we are offering a special US version of the C-Leg.

Reach out to your prosthetist to order yours today!



What you need to know

Advantages for you

Stop worrying about falls

No matter the terrain or your speed, the C-Leg is always thinking about security—so you don’t have to. Its sensors recognize when you’re in an insecure position, and during a trip or stumble, the C-Leg increases resistance to provide the support you need to recover before you fall. You can speed up, slow down, and go down stairs step over step with the assurance that the C-Leg is there for you.

NEW: The truth about microprocessor knees

Since the C-Leg microprocessor-controlled prosthetic knee (MPK) was first introduced over 15 years ago, several other MPKs have come on the market, causing users and clinicians to ask an obvious question: is there a difference between MPKs? A recent study looking at the design and performance of MPKs found that the C-Leg stands above the rest. Find out why C-Leg is the most fit, most studied prosthetic knee. Summary of study.

Multiple modes for multiple activities

You’ve got more than one speed – so does C-Leg! The C-Leg offers two activity modes, set by your prosthetist at your request. You can program for your most common activities, such as specific job tasks or riding a bike.

Stand at ease

C-Leg’s standing mode gives you support with your knee flexed between 7º and 70º. Just by having that flex, you’ll find you use less energy while standing. Washing dishes or standing in line is suddenly more comfortable.

Easy going

Getting your prosthetic leg into motion is easy with the support from a C-Leg microprocessor. The smooth, natural start to your “swing phase” gives you the freedom and control you need to meet the challenges of your everyday life.

Every step is smooth and secure

Choose one of the Triton feet from Ottobock to complete your C-Leg system:

  • the lightweight Triton carbon fiber foot with exceptionally smooth control;
  • the Triton Vertical Shock (VS) with great shock absorption in a compact design;
  • the Triton Harmony® with integrated vacuum technology;
  • the Triton Heavy Duty, robust and waterproof, for particularly challenging conditions), or
  • the Triton Low Profile, with especially low structural height for those who need the extra room.

Stability and function in the palm of your hand

Switching between activity modes is as easy as pressing the wireless remote control or bouncing on the toe.

Proven results

C-Leg has been the subject of more peer-reviewed, published clinical studies than any other microprocessor knee in history. No other microprocessor knee on the market comes close to C-Leg’s record of results.

How the C-Leg works

How the C-Leg Works

The innovative C-Leg was designed to reproduce the functions of a biological leg. Click here to see a video about how the C-Leg's microprocessor-controlled hydraulic system performs throughout your walking pattern ("gait cycle") to give you stability and control.

Components

C-Leg system components

Please go to the Downloads tab on this page to download a list of C-Leg components and their product numbers.

Triton feet

Choose any of the Triton feet from Ottobock to complete your C-Leg system:

The lightweight Triton carbon fiber foot with exceptionally smooth control

The Triton Vertical Shock (VS) with great shock absorption in a compact design

The Triton Harmony with integrated vacuum technology

The Triton Heavy Duty, robust and waterproof, for particularly challenging conditions

The Triton Low Profile, with especially low structural height for those who need the extra room

Technical info

C-Leg specifications

Highly stable yet lightweight carbon fiber frame

Patient weight: Max. 300 lbs*/136 kg

Weight of the knee joint only: about 2.8 lbs / 1,145 g

Height of the knee joint only: about 8 inches / 20 cm

Adjustable activity modes: 2

Operating time with fully charged battery: 40 to 45 hours

Maximum possible knee flexion angle: 125°

*Must be used with tube adapter 2R82= 120-240 to reach this weight limit. Other adapters reduce to 275 lbs maximum weight. See your prosthetist for specifics.

Downloads

Please choose an appropiate format:

C-Leg Patient Information

(FYI, either Genium or C-Leg must be worn with a Helix Hip)

Please choose an appropiate format:

C-Leg - it's back in black!

Please choose an appropiate format:

Advanced prosthetic knee technology brochure

Advanced prosthetic knee technology brochure

Please choose an appropiate format:

Triton Family of Feet brochure

Triton Family of Feet brochure

Please choose an appropiate format:

C-Leg Instructions for Use

C-Leg Instructions for Use

Please choose an appropiate format:

Clinical Studies comparison list – C-Leg and other MPKs

Clinical Studies comparison list – C-Leg and other MPKs

Please choose an appropiate format:

C-Leg clinical studies bibliography

C-Leg clinical studies bibliography

Please choose an appropiate format:

C-Leg components list

C-Leg components list

FAQs

Take a look at our Frequently Asked Questions for more information.

Not finding what you are looking for? Please contact us!


Accessories


Related systems