Download ppt - Damage to Cobalt-Chromium Surfaces During Arthroscopy of Total Knee Replacements by Gregory E. Raab, Christopher M. Jobe, Paul A. Williams, and Qiang G

Damage to Cobalt-Chromium Surfaces During Arthroscopy of Total Knee Replacements

by Gregory E. Raab, Christopher M. Jobe, Paul A. Williams, and Qiang G. Dai

J Bone Joint Surg AmVolume 83(1):46-46

January 1, 2001

©2001 by The Journal of Bone and Joint Surgery, Inc.

Figs. 1-A and 1-B Backscatter scanning electron microscopy images showing damage to the cobalt-chromium surface from the metal cannula at a load of 25 N (magnification, ¥100).

Gregory E. Raab et al. J Bone Joint Surg Am 2001;83:46


Atomic number contrast showing two different materials.



Backscatter scanning electron microscopy images with topographical contrast, showing the damage to the cobalt-chromium surface from the metal cannula at different normal loads.



Regression curve of normal load versus Ra value.



Box plot of Rz values for the cobalt-chromium surface after the metal and plastic-cannula tests.



Backscatter scanning electron microscopy images with topographical contrast, showing the cobalt-chromium surface after testing with the plastic cannula at different normal loads.

