Stock Photo - 09 May 2022, Saxony, Leipzig: Maik-Jannik Ahrens, (l-r) Event Team Ottobock, Peter Franzel, Head of Event Team Ottobock and Mathias Börner, Ottobock Sales Representative Saxony and Thuringia, assemble an oversized model of a leg prosthesis. To mark the 25th anniversary of the C-Leg leg prosthesis, the Duderstadt-based company Ottobock is displaying a four-meter-high model of it at OTWorld 2022, the world's leading trade fair for orthopaedic and rehabilitation technology. It was the world's first mechatronic knee joint. The C-Leg technology has now been used in more than 100,000 fittings worldwide. Photo: Christian Modla/dpa. - Leipzig/Saxony/Germany