Characterization and Comparison of Wear Debris from Failed Total Hip Implants of Different Types* by KAZUO HIRAKAWA, THOMAS W. BAUER, BERNARD N. STULBERG, ALAN H. WILDE, and MICHELLE SECIC J Bone Joint Surg Am Volume 78(8): August 1, 1996 ©1996 by The Journal of Bone and Joint Surgery, Inc.
Figs. 1-A and 1-B: Specimen from Group 4 (implants that were made of only titanium alloy). KAZUO HIRAKAWA et al. J Bone Joint Surg Am 1996;78: ©1996 by The Journal of Bone and Joint Surgery, Inc.
Energy-dispersive x-ray spectroscopy study confirming the titanium composition of most particles. KAZUO HIRAKAWA et al. J Bone Joint Surg Am 1996;78: ©1996 by The Journal of Bone and Joint Surgery, Inc.
Figs. 2-A and 2-B: Specimen from Group 2 (implants that were made of only cobalt-chromium alloy). KAZUO HIRAKAWA et al. J Bone Joint Surg Am 1996;78: ©1996 by The Journal of Bone and Joint Surgery, Inc.
Energy-dispersive x-ray spectroscopy study showing cobalt-chromium alloy. KAZUO HIRAKAWA et al. J Bone Joint Surg Am 1996;78: ©1996 by The Journal of Bone and Joint Surgery, Inc.