Jan 05, 2011

The latest in a series of ASTM International standards developed for the characterization of mobile bearing knees prior to implementation has now been approved by ASTM International Committee F04 on Medical and Surgical Materials and Devices. The new standard, ASTM F2777, Test Method for Evaluating Knee Bearing (Tibial Insert) Endurance and Deformation Under High Flexion, is under the jurisdiction of Subcommittee F04.22 on Arthroplasty.

According to Leslie Gilbertson, L. Gilbertson Consulting LLC, and vice chairman, F04.22, ASTM F2777 and the three previously approved standards are designed to address the possible failure mechanisms of mobile knee systems, although in some instances they would also be used for fixed bearing knees.