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.

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.

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.

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.

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.
Enhanced stance support and fall protection
Designed for lower mobility and rehab-focused users
Simplified transitions and confidence-building mobility
The world’s most studied prosthetic device
Dynamic support on stairs, ramps, and uneven terrain
Intuitive Cycling and advanced stance support features
Advanced responsiveness and customization
Supports complex movement patterns and dynamic environments
Built for durability, versatility, and freedom of movement
Kenevo
Best For: Rehabilitation and users prioritizing stability and safety

C-Leg 4
Best For: Everyday mobility with proven performance

Genium X4
Best For: Highly active lifestyles and advanced mobility goals

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 | 300 lbs | 330 lbs | 330 lbs |
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.
