3D Profilometry Analysis of Surface Damage on CoCr Humeral Head Retrievals
To complement macroscale analysis performed on CoCr humeral heads, microscale analysis using 3D profilometry is currently being used to assess individual damage types (e.g. scratching, abrasion, pitting. Microscale roughness measurements has revealed that scratches exhibit higher peaks and deeper valleys, which abrasive modes may have the a greater degree of material pileup. Ongoing analysis seeks to further correlate these roughness trends on a larger sampling of devices and verify such trends have implications for counterbearing wear.
