1. 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 Am Volume 83(1):46-46 January 1, 2001 ©2001 by The Journal of Bone and Joint Surgery, Inc.

2. 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 ©2001 by The Journal of Bone and Joint Surgery, Inc.

3. Atomic number contrast showing two different materials. Gregory E. Raab et al. J Bone Joint Surg Am 2001;83:46 ©2001 by The Journal of Bone and Joint Surgery, Inc.

4. Backscatter scanning electron microscopy images with topographical contrast, showing the damage to the cobalt-chromium surface from the metal cannula at different normal loads. Gregory E. Raab et al. J Bone Joint Surg Am 2001;83:46 ©2001 by The Journal of Bone and Joint Surgery, Inc.

5. Regression curve of normal load versus Ra value. Gregory E. Raab et al. J Bone Joint Surg Am 2001;83:46 ©2001 by The Journal of Bone and Joint Surgery, Inc.

6. Box plot of Rz values for the cobalt-chromium surface after the metal and plastic-cannula tests. Gregory E. Raab et al. J Bone Joint Surg Am 2001;83:46 ©2001 by The Journal of Bone and Joint Surgery, Inc.

7. Backscatter scanning electron microscopy images with topographical contrast, showing the cobalt-chromium surface after testing with the plastic cannula at different normal loads. Gregory E. Raab et al. J Bone Joint Surg Am 2001;83:46 ©2001 by The Journal of Bone and Joint Surgery, Inc.