Surface stress: a factor influencing ultra high molecular weight polyethylene durability in mobile-bearing knee design.

Morra, Edward A; Heim, Christine S; Greenwald, A Seth · Orthopedics · 2007

biomechanical · Level V

Where this comes from

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.

Medical subject headings

Anatomy