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Dislocation mobile bearing ASTM F2724

Normative References  



ASTM F2724: Standard Test Method for Evaluating Mobile Bearing Knee Dislocation.

This test protocol describes the test method to determine the relative safety threshold for mobile-bearing knee designs with respect to spin-out and spit-out of the tibial insert. A total of n=5 implants are tested at 0°, 60°, 90° and maximum flexion. The medial condyle is loaded with 80%, and the lateral condyle is loaded with 20% of the axial joint reaction force (100% = 710N). The femoral component is moved in ap-direction until luxation occurs.