C-Leg 4
With over 100,000 fittings to date, the C-Leg is trusted by more users than any other microprocessor knee in the world.1 And it’s no wonder: Studies show the C-Leg provides the exceptional reliability and performance users need to focus on what really matters — enjoying a healthy, active lifestyle.
With over 100,000 fittings to date, the C-Leg is trusted by more users than any other microprocessor knee in the world.1 And it’s no wonder: Studies show the C-Leg provides the exceptional reliability and performance users need to focus on what really matters — enjoying a healthy, active lifestyle.
From descending stairs and ramps, to navigating uneven terrain, to walking backward, the C-Leg dynamically adapts to a wide variety of everyday situations.
This legacy lives on in the C-Leg 4 update. With an innovative design and exciting new features, the C-Leg 4 provides the known reliability, next-level personalization, and an easier, more intuitive user experience for both patients and professionals alike.
| Product type | Microprocessor |
| Mobility grade | 2, 3, 4 |
| Max. body weight | 136 kg |
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.
Stumble recovery Plus is active at all times with the C-Leg 4. This ultra-precise feature automatically detects fall-like movements during the swing phase of users’ gait and activates the resistance they need to avoid a fall, recover their balance, and maintain greater stability.
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 automatic sitting function.
It’s easier than ever for users to get the most out of their C-Leg. Deep sleep mode saves battery during long flights, camping, or other activities where power supply is limited. The charger enables one-handed use. Plus, there’s a USB charging adapter available.
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 Cockpit app.
C-Leg 4 is now IP 68 and even more durable than before with enhanced protection from the elements. The electronic components of the C-Leg are protected from freshwater submersion up to 3 meters for 1 hour (IP 68). Please note it is not corrosion resistant. This technological upgrade from IP67 to IP68 was made to ensure users enjoy peace of mind in their everyday activities.
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 Cockpit app or via a movement pattern.
Users can personalize the look of their prosthesis thanks to a new customizable shield cover. Not only do these robust, durable covers protect the C-Leg 4 from environmental factors, wear, and tear, they also now empower users to show off their unique style with each step.
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.
With the Cockpit 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.
With their prosthetist’s help, users can choose between intuitive and deliberate stance functions. Intuitive stance uses subtle cues to detect whether users need support for standing or taking a step, while deliberate stance requires more conscious movements to resume flexion.
Shima's C-Leg 4 story
Shima's positive charisma and big smile are just infectious. Anyone who talks to her notices how much joy she has in her life and what a big heart she has. Being an O&P clinician herself, she takes pride in caring for each and every patient and giving them the best devices to fit their individual needs. She loves to play wheelchair basketball, to run, to dance, and hang out with her friends. Watch the video to see how her C-Leg 4 supports her in everything she does.
Chance's C-Leg 4 story
Chance is a dedicated husband and father who loves spending time with his family. 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.
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.
Rebecca’s C-Leg 4 Story
Rebecca loves to express creativity in every facet of her life. And thanks to the new custom shield cover 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.
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.
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.
Elegance
Thanks to innovative new developments, C-Leg 4 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.
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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 |
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