Where can I get a C-Leg?

You can get the C-Leg from your NHS Limb Centre via the NHS Microprocessor Knee Policy if you qualify against the specific criteria, or through a Private Prosthetic Provider, who will adapt the prosthesis to your individual needs.

Where can I try out a C-Leg?

Many clinics offer trial fittings which take place over a predetermined period of time and are monitored by Ottobock when needed. Just talk to your prosthetist for more details.

What’s included in a prosthetic fitting?

A prosthetic fitting includes all components from the foot to the knee joint system, including the socket, which will be customised to your individual needs by your prosthetist. The assembly and setup of the system are also included, as well as regular service inspections during the entire period you use the C-Leg.

What happens when the battery is drained?

A vibration signal notifies the user well in advance when the battery starts getting low. When it’s drained, the C-Leg automatically switches to a predefined safety mode so that the user’s preferred resistance in the stance phase is activated.

Can I take a shower or go swimming with the C-Leg?

Although the C-Leg is weatherproof and well suited for contact with water in various everyday situations, such as rain showers or light splashes. It is not fully waterproof. You should not wear it in the shower or for activities like swimming.

How long does it take to learn how to use the C-Leg?

Many users are able to walk downstairs step-over-step on their first day with the C-Leg prosthesis. However, it can also take several days or even weeks for users to completely acclimatise to using the C-Leg in everyday situations depending on their unique condition and circumstances.

C-Leg 4 | Choose the latest in proven performance.

Q: What benefits of the C-Leg have been proven in clinical trials?

Numerous studies have investigated the advantages of C-Leg technology for people with a transfemoral (above-knee) amputation. These studies have shown that the frequency of falls is much lower with the C-Leg compared to conventional prostheses, proving a high level of safety. In addition, studies show that C-Leg users don’t have to concentrate on their prosthesis at all times, but rather can move more freely in everyday situations. C-Leg users have more confidence in their prosthesis, and are also able to boost their activity levels, vary their walking speed and expend less energy while walking.

Benefits at a glance

A user with the C-Leg leg prosthesis walking down a staircase.

Greater Mobility

The key to fluid movement is a knee that responds quickly to different inclines and surfaces. With the C-Leg 4, users get improved stance release and increased support for descending ramps and stairs, enabling noticeably smoother and more reliable movement.

A C-Leg user taps his C-Leg before exercising.

Manual locking function

With the manual locking function users can conveniently secure the C-Leg 4 in extension with a simple tapping pattern, even when using a cosmetic fitting. This is particularly helpful during sporting activities.

The C-Leg user is sitting on a chair while making pottery.

Support and comfort for sitting

The C-Leg 4 detects when users sit down, mirroring their speed to keep them stable and in control — even if they’re using a chair or a walking aid for support. Once seated, they can enjoy a relaxed, comfortable position with a free-swinging joint thanks to the supported sitting function.

Easier user experience

Getting the most out of your C-Leg has never been easier. Deep Sleep Mode helps conserve battery during long flights, camping trips, or any situation where power is limited. Charging is simple and convenient with a design that allows one-handed use, and a USB charging adapter ensures you can stay powered wherever you go.

Helpful training function

A training function provides a feedback signal after every successful swing phase initiation to support troubleshooting and gait training as users get accustomed to their prosthesis. This feature can be activated and deactivated by the prosthetist or user via the connectgo user app.

A C-Leg user pets his wet dog close to a lake.

Weatherproof design (IP68)

The new C-Leg 4 is now IP68, enabling you to have greater confidence in diverse environments. Whether you're walking the dog, caught in a rain shower, or accidentally splashed when watering the garden, you can be assured that the electronics in your C-Leg are protected from dust, sand, dirt and occasional submersion in freshwater (up to 3m for 1hr).

MyMode Plus

Users can easily get more support for their favorite activities. MyMode Plus offers a fantastic selection of options for work, leisure, and athletics. Together with their prosthetist, users can select two settings for easy activation in the connectgo user app or via a movement pattern.

A C-Leg user is painting her shield insert

Customisable shield insert

Users can personalise the look of their prosthesis thanks to a new customisable shield insert. Not only do these robust, durable covers protect the C-Leg 4 from environmental factors or wear and tear, they also now empower users to show off their unique style with each step.

The new colour of the C-Leg 4 – Midnight Shadow.

New colour option

Many of the updates to our signature C-Leg microprocessor knee are based on feedback we received from users and professionals. In fact, that’s why the C-Leg 4 is available in two colors: the original lighter Desert Pearl as well as a darker shade, Midnight Shadow.

The C-Leg 4 activates his MyMode Plus in the Cockpit App

Smart control via app

With the connectgo user app, users can fine tune MyMode Plus and other settings individually, switch between MyMode Plus options, check their knee’s battery status, set their volume, track their activities, perform a knee joint self-test if needed, and much more — all via their iOS or Android smartphone.

A C-Leg user is standing in a paint shop

Stance function selection

Users can choose between intuitive and deliberate stance with the help of their Prosthetist. Intuitive stance uses sensor data to detect whether the user needs support while standing or taking a step, while deliberate stance requires more conscious movements to resume flexion.

A blue circle with a graphically represented prosthesis and the word pro.

More support for Prosthetists

The app connectgo.pro for Android and iOS smartphones and tablets makes it easy for Prosthetists to quickly and conveniently program the C-Leg for their users.

User Experience

Shima’s C-Leg 4 story

Shima's positive charisma and broad smile are simply infectious. Anyone who talks to her realizes how much joy she has in her life and what a big heart she has. Being an O&P professional herself, she takes pride in caring for each of her patients and giving them the best devices to fit their individual needs. She loves to play wheelchair basketball, run, dance and hang out with her friends. Watch the video to see how her C-Leg supports her in everything she does.

C-Leg 4 user Shima sits on a stool while making pottery.

Celebrating 25 Years of C-Leg

C-Leg the signature microprocessor controlled knee joint started a revolution in prosthetics. A quarter century and over 100,000 fittings later, it’s still the most popular prosthesis of its kind. See how the C-Leg keeps users moving forward with decades of innovation in every step.

Shima’s C-Leg 4 story

Shima's positive charisma and broad smile are simply infectious. Anyone who talks to her realizes how much joy she has in her life and what a big heart she has. Being an O&P professional herself, she takes pride in caring for each of her patients and giving them the best devices to fit their individual needs. She loves to play wheelchair basketball, run, dance and hang out with her friends. Watch the video to see how her C-Leg supports her in everything she does.

Chance’s C-Leg 4 story

Chance is a real family guy. He enjoys being together with his family and their dog. Uneven terrain, stairs and splashes of water are no problem for him thanks to his C-Leg. This allows him to focus on what’s truly important: family and friends. Watch the video and enjoy a fun day outdoors with Chance, his C-Leg 4 and dog Dolly.

Opens video: "C-Leg 4 user Chance walks down a slightly sloping road with his dog."

Georg’s C-Leg 4 Story

Georg maintains an unwavering positive attitude toward life. In fact, he believes his amputation has created new possibilities for him, such as realising his childhood dream of skiing, discovering a passion for the javelin, and becoming a para-athlete. Watch the video to see how the C-Leg 4 supports him during sports, daily routines, and everything in between.

Opens video: "Georg walking to his car with the C-Leg."

Rebecca’s C-Leg 4 Story

Rebecca loves to express creativity in every facet of her life. Thanks to the new custom shield insert for her C-Leg 4, her unique style and personality are always on display for the world to see. Watch the video to see how the C-Leg 4 keeps Rebecca focused on what really matters — not every step she takes, but rather where each step will take her.

Opens video: "Rebecca trying on clothes in front of the mirror with the C-Leg."

Celebrating 25 Years of C-Leg

C-Leg the signature microprocessor controlled knee joint started a revolution in prosthetics. A quarter century and over 100,000 fittings later, it’s still the most popular prosthesis of its kind. See how the C-Leg keeps users moving forward with decades of innovation in every step.

Shima’s C-Leg 4 story

Shima's positive charisma and broad smile are simply infectious. Anyone who talks to her realizes how much joy she has in her life and what a big heart she has. Being an O&P professional herself, she takes pride in caring for each of her patients and giving them the best devices to fit their individual needs. She loves to play wheelchair basketball, run, dance and hang out with her friends. Watch the video to see how her C-Leg supports her in everything she does.

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Functionality

Intelligent system

Ottobock is continually developing the C-Leg to ensure users get the latest and greatest in microprocessor knee technology. The C-Leg supports users throughout the entire gait cycle, adjusting to their unique walking patterns in real time. So, whether they’re going downstairs step-over-step, descending slopes, or navigating uneven terrain, C-Leg users can truly trust their prosthesis as they move through their daily activities.

The new C-Leg 4 with protective cover in an artistic photo

Safety

Many studies have proven that users fall significantly less frequently with the C-Leg than with conventional prostheses, making the C-Leg one of the most reliable leg prostheses in the world. In addition, the new C-Leg 4 provides even greater safety and stability via Stumble Recovery Plus and increased support for sitting down.

Intelligent system

Ottobock is continually developing the C-Leg to ensure users get the latest and greatest in microprocessor knee technology. The C-Leg supports users throughout the entire gait cycle, adjusting to their unique walking patterns in real time. So, whether they’re going downstairs step-over-step, descending slopes, or navigating uneven terrain, C-Leg users can truly trust their prosthesis as they move through their daily activities.

Reliability

Twenty-five years of continuous development, based on the experiences of qualified personnel and users, have made the C-Leg the most preferred and trusted microprocessor knee worldwide. It is also the most widely studied and proven microprocessor knee. In fact, 77 scientific publications featuring upwards of 2,500 subjects clearly support the benefits that C-Leg users across the globe enjoy every day.

Elegance

Thanks to innovative new developments, C-Leg users enjoy more harmonious, fluid movement patterns — even when taking small steps, changing walking speeds, or navigating different types of terrain such as sand, grass, and gravel. Even users who have never worn a C-Leg are able to adjust to the prosthesis over a relatively short period of time.

Safety

Many studies have proven that users fall significantly less frequently with the C-Leg than with conventional prostheses, making the C-Leg one of the most reliable leg prostheses in the world. In addition, the new C-Leg 4 provides even greater safety and stability via Stumble Recovery Plus and increased support for sitting down.

Intelligent system

Ottobock is continually developing the C-Leg to ensure users get the latest and greatest in microprocessor knee technology. The C-Leg supports users throughout the entire gait cycle, adjusting to their unique walking patterns in real time. So, whether they’re going downstairs step-over-step, descending slopes, or navigating uneven terrain, C-Leg users can truly trust their prosthesis as they move through their daily activities.

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Specifications

Product information

Product type	Microprocessor
Mobility grade	2, 3, 4
Max. body weight	136 kg
Amputation level	Hip disarticulation, Transfemoral amputation, Knee disarticulation
Material	Carbon

Product Data

Article number	Mobility grade	Distal connection	Proximal connection	Knee flexion angle	Moisture protection	Weight (without tube adapter)	Max. body weight	Colour	Minimum distal system height with 257/2R67 tube adapter	Max. distal system height with 257/2R67 tube adapter	Min. build height with 2R57/2R67 tube adapter	Max. build height with 2R57/2R67 tube adapter	Proximal build height to alignment reference point	Min. distal build height with 2R57/2R67 tube adapter	Max. distal build height with 2R57/2R67 tube adapter
3C98-3=9.2-4	2, 3, 4	Tube clamp	Pyramid	130 °	IP68 (Water-resistant)	1250 g	136 kg	Desert pearl	289 / 329 mm	494 / 534 mm	294 / 334 mm	499 / 539 mm	23 mm	271 / 311 mm	476 / 516 mm
3C88-3=8.5-4	2, 3, 4	Tube clamp	Threaded connector	130 °	IP68 (Water-resistant)	1255 g	136 kg	Midnight Shadow	289 / 329 mm	494 / 534 mm	297 + 9* / 337 + 9* mm	502 + 9* / 542 + 9* mm	26 + 9* mm	271 / 311 mm	476 / 516 mm
3C88-3=9.2-4	2, 3, 4	Tube clamp	Threaded connector	130 °	IP68 (Water-resistant)	1255 g	136 kg	Desert pearl	289 / 329 mm	494 / 534 mm	297 + 9* / 337 + 9* mm	502 + 9* / 542 + 9* mm	26 + 9* mm	271 / 311 mm	476 / 516 mm
3C98-3=8.5-4	2, 3, 4	Tube clamp	Pyramid	130 °	IP68 (Water-resistant)	1250 g	136 kg	Midnight Shadow	289 / 329 mm	494 / 534 mm	294 / 334 mm	499 / 539 mm	23 mm	271 / 311 mm	476 / 516 mm

Article number	3C98-3=9.2-4	3C88-3=8.5-4	3C88-3=9.2-4	3C98-3=8.5-4
Mobility grade	2, 3, 4	2, 3, 4	2, 3, 4	2, 3, 4
Distal connection	Tube clamp	Tube clamp	Tube clamp	Tube clamp
Proximal connection	Pyramid	Threaded connector	Threaded connector	Pyramid
Knee flexion angle	130 °	130 °	130 °	130 °
Moisture protection	IP68 (Water-resistant)	IP68 (Water-resistant)	IP68 (Water-resistant)	IP68 (Water-resistant)
Weight (without tube adapter)	1250 g	1255 g	1255 g	1250 g
Max. body weight	136 kg	136 kg	136 kg	136 kg
Colour	Desert pearl	Midnight Shadow	Desert pearl	Midnight Shadow
Minimum distal system height with 257/2R67 tube adapter	289 / 329 mm	289 / 329 mm	289 / 329 mm	289 / 329 mm
Max. distal system height with 257/2R67 tube adapter	494 / 534 mm	494 / 534 mm	494 / 534 mm	494 / 534 mm
Min. build height with 2R57/2R67 tube adapter	294 / 334 mm	297 + 9* / 337 + 9* mm	297 + 9* / 337 + 9* mm	294 / 334 mm
Max. build height with 2R57/2R67 tube adapter	499 / 539 mm	502 + 9* / 542 + 9* mm	502 + 9* / 542 + 9* mm	499 / 539 mm
Proximal build height to alignment reference point	23 mm	26 + 9* mm	26 + 9* mm	23 mm
Min. distal build height with 2R57/2R67 tube adapter	271 / 311 mm	271 / 311 mm	271 / 311 mm	271 / 311 mm
Max. distal build height with 2R57/2R67 tube adapter	476 / 516 mm	476 / 516 mm	476 / 516 mm	476 / 516 mm

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