All prosthetic knees are designed to emulate two phases of your natural walking pattern or “gait cycle”:

During stance phase, your foot is on the ground. Your leg is slightly bent, acting as a shock absorber while providing enough resistance to support your weight.

During swing phase, your foot is in the air and swinging forward. Your knee flexes more so that your foot can clear the floor as it swings forward into the next step.

But it’s the way they recreate these phases of gait that separates one type of prosthetic knee from another.

Mechanical knees are usually controlled by a mechanical lock, friction, or pneumatic or hydraulic fluids. Often only body weight is used to activate the stance control mechanism.

Microprocessor knees use sensors, software, and a built-in computer to adjust fluid-based resistance to your unique gait. This makes it easier to walk at varying speeds and safely descend ramps and stairs.

The bottom line? MPKs empower you to walk with a more stable, natural, and efficient gait.

Ottobock launched the first fully microprocessor-controlled knee in 1997 and remains the world’s leading manufacturer of MPKs to this day. Over the last 25 years, we have continually updated our systems based on both scientific research and feedback from users about what they really need.

For example, your prosthetist will program your microprocessor knee to match your walking pattern. Many systems won’t vary from this programmed pattern until they’re checked again. But Ottobock MPKs continually monitor the phases of your gait, adjusting in real time to support you as you speed up or slow down.

Robert enjoys the simple but important things in his life. Being able to plan his day, make breakfast or enjoy the afternoon in the garden. His Kenevo gives him support with adjusting to new situations and mastering everyday challenges.

Günter has loved classic cars since his young age. After the amputation, he knew he didn’t want to give it up. With his Kenevo, he feels stable and secure, which enables him to enjoy his everyday life and follow his passion for cars.

After suffering with a long-term condition, Georg’s amputation has actually created new possibilities for him. He has realized his childhood dream of skiing, discovered a passion for the javelin, and even became a para-athlete. The C-Leg 4 supports him as he plays sports, stays active in his father’s fitness studio, and goes about his daily routines.

Fashion student Rebecca loves to express creativity in every facet of her life. With the C-Leg 4, she was able to customize her shield insert, and now her unique style and personality shine through with each step she takes.

“I’m still the same person,” says Rebecca, “just with a special accessory.”

Michael used the Kenevo to make the most of his therapy. “Gaining confidence was the hardest thing,” he said.

Although it took some time for him to trust the knee joint, he worked with his physiotherapist and learned to navigate stairs, uneven surfaces, and more.

Now, Michael wears a Genium X3, works as a logistics specialist, and regularly plays sports with his wife and friends.

Detlef considers himself a homebody – but he also loves taking regular walks and watching his grandson play football. Because of his age, he was concerned that he might have trouble recovering after his amputation. But the Kenevo showed him that he can put his full confidence in a microprocessor knee joint. Now, Detlef feels safe and secure with every step.

For Björn life happens outdoors. He talks about his experiences with Genium X4, hiking without worrying about battery life or challenging terrains, even in unpredictable weather. "I feel less exhausted when walking, especially uphill." For Björn, it's not just about mobility — it's about maintaining his freedom.

As a dedicated horse groomer, Siglind’s job requires physical strength and reliability. From navigating tight spaces and walking countless steps to reacting quickly and maneuvering heavy carts, Siglind's Genium X4 handles it all. Each step offers seamless movement, allowing her to focus on her tasks with confidence.

Laura thrives in her bustling office environment with the Genium X4, effortlessly navigating crowded spaces and constant movement. Features like the start-to-walk function and intuitive cycling make her daily routine smoother than ever.

As a marine, Marcus knows the importance of trusting your partner, and he puts his full trust in his knee with every step he takes. With the Genium X4 he feels safer even on challenging terrain like slippery mud. Whether he's playing basketball with his kids or tackling his daily tasks with confidence, the Genium X4 is there for him.

Dave has a clear focus: relishing in life's precious moments without distraction. Seamlessly navigating everyday tasks and enjoying spontaneous moments with his family, Dave values the natural feel of his Genium X4 knees.

Caleb is a dynamic individual balancing athletics, fatherhood, and more. With his Genium X4, he enjoys effortless movement across all terrains. Fully waterproof and corrosion-resistant, it keeps up with his outdoor adventures while personalized MyModes ensure he's always ready on the go.

Shima, an O&P clinician, exudes positivity and cares deeply for her patients. Her active lifestyle includes wheelchair basketball, running, and dancing. Her C-Leg enhances her mobility seamlessly, supporting her vibrant life.

Chance cherishes family time with his dog, not worrying about terrain or weather. His C-Leg ensures stability on uneven surfaces and stairs, handles rain and splashes of water, letting him focus on what matters most: family and fun outdoors.

Description: Those with Level 1 mobility typically use their prosthesis only for transfers or moving slowly on level floors. Walking time and distance are likely very limited due to overall physical condition.

Therapy Goal: Restore the ability to stand and walk indoors for short periods.

Ottobock MPK Options: Kenevo

Description: Users can typically walk slowly with their prosthesis and negotiate low obstacles, such as curbs, single steps, and uneven surfaces. Walking time and distance are still limited.

Therapy Goal: Restore the ability to stand and walk both indoors and outdoors.

Ottobock MPK Options: Kenevo, C-Leg, Genium X4

Description: Users can walk with their prosthesis at medium-to-high speeds, vary their speed, and overcome most natural obstacles. They can typically engage in professional, therapeutic, and other activities that don’t put too much strain on their prosthesis. And while there may be an increased need for safety (perhaps due to additional disability or special living conditions) combined with medium-to-high mobility demands, walking time and distance are only slightly restricted.

Therapy Goal: Restore the ability to stand and walk, both indoors and outdoors, with only mild restrictions.

Ottobock MPK Options: C-Leg, Genium X4

Description: Users are generally able to walk outdoors with little or no restriction, for any amount of time or distance. Due to high functional demands, significant shock, tension, and distortion can occur.

Therapy Goal: Restore the ability to stand, walk, and move both indoors and outdoors without any limitations.

Ottobock MPK Options: C-Leg, Genium X4