Work Item
ASTM WK78557
New Test Method for Cyclic Fatigue Testing of Posterior-Stabilized Tibial Bearing Components
1. Scope
1.1 This test method covers a procedure for the shear and bending fatigue testing of the tibial posts of posterior-stabilized tibial bearing components. This test method covers the procedures for the performance of fatigue tests on posterior-stabilized components using a cyclic, constant-amplitude force. 1.2 This test method is intended to provide useful, consistent, and reproducible information about the fatigue performance of tibial posts of posterior-stabilized tibial bearing components.Keywords
Total Knee Replacement; TKR, Total Knee Arthroplasty; TKA, fatigue, Posterior-Stabilized; PS; Tibial Post; Tibial Spine; Tibial InsertRationale
Fatigue testing of the tibial post is recommended in Section 7 D of Class II Special Controls Guidance Document: Knee Joint Patellofemorotibial and Femorotibial Metal/Polymer Porous-Coated Uncemented Prostheses; Guidance for Industry and FDA. However, no such standard exists to guide a user on testing. This method will serve to help standardize testing and reduce variability in test results similar to ASTM F1800.
Work Item Status
Date Initiated: 10-12-2021
Technical Contact: Christian Kaddick
Item: 000
Ballot:
Status: