(WYTV) - (WYTV) - Ohio State University is testing a new device called the Calypso Knee System and it's attached outside of the knee joint.
Dr. David Flanigan says it works as a shock absorber, reducing pressure and creating a cushion similar to what cartilage provides in a healthy joint.
"Take some of that load off that inner portion of the knee and allow that patient now to have increasing function, less pain and really to delay a total knee arthroplasty for, hopefully, years."
The first patient, a firefighter, had bone arthritis, which made walking painful. Now he's doing much better.
Studies say surgeons perform more than 700,000 knee replacements every year in this country, and that number will triple in the next 10 years.
This device could help many avoid a knee replacement.