ASTM F1875 - 26 - TC PDF

1 Scope

1.1 This test method describes the testing, analytical, and characterization methods for evaluating the long-term fretting corrosion performance of the bore and cone interface of the head and stem junction of modular hip implants subjected to cyclic loading in a corrosive environment (1-5) .2

1.2 This test method does not provide for prediction of in vivo implant fretting corrosion performance but rather provides a set of test parameters for evaluating relative differences in performance between differing implant designs, constructs, or materials with performance defined in the context of the amount of fretting and fretting corrosion. The test attempts to produce clinically relevant damage due to fretting and corrosion, but this does not necessarily predict in vivo performance or outcomes (6) .

1.3 This test method is for comparative evaluation of final finished hip femoral heads and either final finished stems or coupon-type specimens ( 4, 5 ).

1.4 The general concepts and methodologies described in this test method could be a...