JOINT ASSEMBLY INCORPORATING UNDERCUT SURFACE DESIGN TO ENTRAP ACCUMULATING WEAR DEBRIS FROM PLASTIC JOINT ASSEMBLY

摘要

A layer applied to a joint defined surface including a general mat shape body exhibiting a plurality of recesses, such that abrading contact with an opposing joint surface creates debris which are entrapped within the recesses during a normal range of motion. The body can further exhibit a first harder plastic substratum and a second softer plastic surface. The recesses further incorporate undercut defined patterns selected from any of circular, linear and arcuate designs.