A rolling-gliding wear simulator for the investigation of tribological material pairings for application in total knee arthroplasty.

Material wear testing is an important technique in the development and evaluation of materials for use in implant for total knee arthroplasty. Since a knee joint induces a complex rolling-gliding movement, standardised material wear testing devices such as Pin-on-Disc or Ring-on-Disc testers are suitable to only a limited extent because they generate a pure gliding motion only.