Patient completes 20 year check up with OPRA Implant System

Erik Ax, 79 years old, is one of the earliest recipients of the OPRA Implant System. Erik is an above-knee amputee who was having several problems with his prosthetic socket.As a result, he sought out Integrum to receive an osseointegrated bone-anchored prosthesis. He had his osseointegration surgery in 1999 and is now having his implant evaluated at the 20th year mark.  

OPRA Osseointegration recipient Erik Ax with Dr. Rickard Brånemark

Through his years with osseointegration, Erik has enjoyed an active lifestyle including horse-back riding, kayaking and bicycling. He continues to use his prosthesis for over 15 hours a day. 

Erik works as a mechanical engineer and has proudly represented the OPRA Implant System all over the world. When asked on how he reflects on osseointegration at this milestone, Erik says ‘There is no doubt. Get it done! It is a life-changing treatment, not only for myself, but also for my family.’ 


‘There is no doubt. Get it done! It is a life-changing treatment, not only for myself, but also for my family.’ 

Erik Ax


It feels great to see our technology validated and performing remarkably in real-life environments. Erik’s successful 20th year check-up is evidence to the performance of the OPRA Implant System.’, says Maria Lopez, CEO.

Erik Ax with Maria Lopez

Read more on Erik Ax’s story here.

Erik documents his journey with ossointegration on his personal blog.