Ottobock on Twitter: "The C-Leg 4 Update: 25 years of innovation. Since 1997, one microprocessor knee technology has set the standard for every other available option. And now, with the new C-Leg
![Ottobock UK on Twitter: "Then and now.... C-Leg 2 vs C-Leg 4. No other microprocessor knee is worn by as many people worldwide. Over 75000 fittings since C-Leg was launched in 1997. # Ottobock UK on Twitter: "Then and now.... C-Leg 2 vs C-Leg 4. No other microprocessor knee is worn by as many people worldwide. Over 75000 fittings since C-Leg was launched in 1997. #](https://pbs.twimg.com/media/DxLulgOXgAY4XsW.jpg)
Ottobock UK on Twitter: "Then and now.... C-Leg 2 vs C-Leg 4. No other microprocessor knee is worn by as many people worldwide. Over 75000 fittings since C-Leg was launched in 1997. #
![OASIS 1: Retrospective analysis of four different microprocessor knee types - James H Campbell, Phillip M Stevens, Shane R Wurdeman, 2020 OASIS 1: Retrospective analysis of four different microprocessor knee types - James H Campbell, Phillip M Stevens, Shane R Wurdeman, 2020](https://journals.sagepub.com/cms/10.1177/2055668320968476/asset/images/large/10.1177_2055668320968476-fig4.jpeg)