The Right Microprocessor Knee Can Change Everything.

Since introducing the world’s first fully microprocessor-controlled knee in 1997, Ottobock has continued to set the standard in prosthetic innovation. Today, clinicians trust Ottobock MPKs to support patients from early rehabilitation through high activity lifestyles with solutions backed by decades of research, real-world outcomes, and user feedback.  

More Than Technology. Meaningful Outcomes for Your Patients.

Microprocessor knees dynamically adapt throughout the gait cycle to help patients move more naturally and confidently in everyday life. Compared to non-microprocessor systems, MPKs can support improved stability, reduced falls risk, smoother walking on uneven terrain, and greater confidence during daily activities.

    A woman wearing her Ottobock Genium X4 while strolling through the city with her friends.

    Improved Stability & Confidence

    Support safer movement on ramps, stairs, uneven terrain, and during variable walking speeds. 

    Support safer movement on ramps, stairs, uneven terrain, and during variable walking speeds. 

    Kenevo user Robert and his wife are playing boccia in their garden

    Personalized to the Individual

    Programming adapts to each patient’s gait pattern, lifestyle, and mobility goals. 

    Programming adapts to each patient’s gait pattern, lifestyle, and mobility goals. 

    An amputee leaning against a wall, drinking his juice and wearing his Ottobock C-Leg 4.

    Proven Clinical Outcomes

    Backed by decades of scientific research, clinical studies, and real-world patient success. 

    Backed by decades of scientific research, clinical studies, and real-world patient success. 

    A male surfer riding the waves while wearing his Ottobock Genium X4.

    Solutions Across Activity Levels

    From rehabilitation-focused support to high-performance mobility. 

    From rehabilitation-focused support to high-performance mobility. 

Built on Decades of Clinical Leadership

Ottobock’s MPK portfolio is shaped by continuous innovation, extensive clinical research, and feedback from real users and clinicians around the world. Over the last three decades, the C-Leg alone has become the most studied and widely trusted microprocessor knee globally. 

Almost 30 years

of microprocessor knee innovation

100,000+

fittings worldwide

77+

scientific publications supporting C-Leg technology

Up to 90%

of users preferred C-Leg over their previous prosthesis

A Portfolio Designed Around Real Lives

Every patient’s goals, environment, and mobility journey are different. Ottobock’s microprocessor knee family helps clinicians match the right technology to the right individual.

    Kenevo

    Best For: Rehabilitation and users prioritizing stability and safety 

    • Enhanced stance support and fall protection 

    • Designed for lower mobility and rehab-focused users 

    • Simplified transitions and confidence-building mobility 

    The C-Leg 4 Microprocessor-Controlled Knee from Ottobock

    C-Leg 4

    Best For: Everyday mobility with proven performance 

    • The world’s most studied prosthetic device 

    • Dynamic support on stairs, ramps, and uneven terrain 

    • Intuitive Cycling and advanced stance support features 

    The C-Leg 4 Microprocessor-Controlled Knee from Ottobock

    Genium X4

    Best For: Highly active lifestyles and advanced mobility goals 

    • Advanced responsiveness and customization 

    • Supports complex movement patterns and dynamic environments 

    • Built for durability, versatility, and freedom of movement

    Genium X4. The newest mechatronical knee joint from Ottobock.

By the numbers

Kenevo

C-Leg 4

Genium

Genium X4

K-Level

K2, low-K3***

K2 - K4

K3, K4

K3, K4

IP Rating

IP 54 - Water Resistant

IP 68 - Fresh Waterproof

IP 67 - Fresh Waterproof

IP 68 - Fully Waterproof + corrosion resistant

Stance control

Locked or intuitive stance

Intuitive or deliberate stance

Intuitive or deliberate stance

Intuitive or deliberate stance

Real-time swing control

Stumble recovery

Clinically-proven OPG (optimized physiological gait)

OPG 3.0

Running capacity

Walk to run

Runningmode

Battery life

Approx. 1 day*

Approx. 2 days*

Approx. 5 days*

Approx. 5 days*

Corrosion resistant

Maximum knee flexion angle

124°

130°

135°

135°

Weight limit

330 lbs
(150 kg)

300 lbs
(136 kg)

330 lbs
(150 kg)

330 lbs
(150 kg)

User app available

Moisture protection

IP 54, electronics are protected against dust and splashes of water, mechanical components are not corrosion resistant

IP 68, electronics are protected from dust, sand, dirt and occasional submersion in fresh water (up to 3m for 1 hour). Mechanical components are not corrosion resistant

IP 67, electronics are protected from dust, sand, dirt and occasional submersion in fresh water (up to 1m for 30 min). Mechanical components are not corrosion resistant

IP 68, electronics are fully protected from dust, sand, dirt and full submersion in fresh, salt and chlorinated water (up to 3m for 1 hour). Mechanical components are fully corrosion resistant against all water types

Service requirement

36th month, condition-based**

36th month, condition-based**

24th month

24th month

*Daily charging recommended
**Service may occur sooner if the knee reaches specific condition-based thresholds.
***More specifically, for patients who walk with speeds of up to 1.9 mph and up to ½ mile outside the house per day.

Support Beyond the Device

Ottobock partners with clinicians throughout the patient journey, from evaluation and trial support to documentation guidance and reimbursement education. 

Support Pillars 

  • Trial fitting support 

  • Clinical education and resources 

  • Documentation and reimbursement assistance 

  • Training and onboarding 

  • Ongoing technical support 

Did you know? Recent Medicare policy changes and expanded payer coverage are helping increase access to MPKs for more patients, including K2-level users. Learn more today. 

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