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Updated: Jul 14, 2026

In Situ High Pressure Hydrogen Tribological Testing of Common Polymer Materials Used in the Hydrogen Delivery Infrastructure
Published on: March 31, 2018
Surface stress: a factor influencing ultra high molecular weight polyethylene durability in mobile-bearing knee
Edward A Morra1, Christine S Heim, A Seth Greenwald
1Orthopedic Research Laboratories, Lutheran Hospital, a Cleveland Clinic hospital, Cleveland, Ohio, USA.
Abstract:
The continuing global interest in the use of total and unicompartmental mobile-bearing knee designs is manifest by an appreciation of their clinical performance. Like their fixed plateau counterparts, mobile-bearing knees are influenced by patient and surgical variables as well as design, material, and manufacturing choices. This article is a focused description of tibiofemoral surface stress distributions, as a predictor of in vivo material durability for three contemporary designs at positions encountered during daily activity.
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