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In 1997, the C-Leg® was introduced to the world as a powerful alternative choice to mechanical knees. With more than 100,000 fittings and more than 25 years of practical experience and research, Ottobock has created a family of unmatched microprocessor knees developed to meet the specific needs of people with different lifestyles.
With the family of Ottobock knees, you are able to make informed clinical decisions and deliver a knee chosen specifically for the individual’s level of function, ability, and activities.
Kenevo |
C-Leg 4 |
Genium |
X3 |
X4 |
|
| K-Level | K2, low-K3*** | K2 - K4 | K3, K4 | K3, K4 | K3, K4 |
| IP Rating | IP 22 | IP 68 | IP 67 | IP 68 + corrosion resistant | IP 68 + corrosion resistant |
| Stance control | Locked or intuitive stance | Intuitive or deliberate 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 2.0 | OPG 3.0 | ||
| Running capacity | Walk to run | Running mode | Running mode | ||
| Battery life | Approx. 1 day* | Approx. 2 days* | Approx. 5 days* | Approx. 5 days* | Approx. 5 days* |
| Corrosion resistant | √ | √ | |||
| Maximum knee flexion angle | 124° | 130° | 135° | 135° | 135° |
| Weight limit | 330 lbs (150 kg) |
300 lbs (136 kg) |
330 lbs (150 kg) |
330 lbs (150 kg) |
330 lbs (150 kg) |
| User app available | √ | √ | √ | √ | √ |
| Moisture protection | IP 22, electronics are protected from dripping 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 | 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 | 12th and 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. |
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