1. Failure of a Stainless-Steel Femoral Head of a Revision Total Hip Arthroplasty Performed after a Fracture of a Ceramic Femoral Head. A Case Report* by J. ALLAIN, D. GOUTALLIER, M. C. VOISIN, and S. LEMOUEL J Bone Joint Surg Am Volume 80(9):1355-1360 September 1, 1998 ©1998 by The Journal of Bone and Joint Surgery, Inc.

2. Fig. 1 Anteroposterior radiograph of the hip, demonstrating a fracture (arrowheads) of the ceramic femoral head. J. ALLAIN et al. J Bone Joint Surg Am 1998;80:1355-1360 ©1998 by The Journal of Bone and Joint Surgery, Inc.

3. Fig. 2 Anteroposterior radiograph, made eighteen months after the total hip arthroplasty with the stainless-steel femoral head, demonstrating a multilobar periprosthetic pseudotumor (arrowheads) and migration of the head. J. ALLAIN et al. J Bone Joint Surg Am 1998;80:1355-1360 ©1998 by The Journal of Bone and Joint Surgery, Inc.

4. Fig. 3 Photograph of the specimens, demonstrating periprosthetic metallosis with a multilobar pseudotumor. J. ALLAIN et al. J Bone Joint Surg Am 1998;80:1355-1360 ©1998 by The Journal of Bone and Joint Surgery, Inc.

5. Fig. 4 Photograph of the removed stainless-steel femoral head. J. ALLAIN et al. J Bone Joint Surg Am 1998;80:1355-1360 ©1998 by The Journal of Bone and Joint Surgery, Inc.

6. Fig. 5 Histological preparation demonstrating intensive metallosis of the periprosthetic neosynovial tissue (hemalum, eosin, and safranin O, x 25). J. ALLAIN et al. J Bone Joint Surg Am 1998;80:1355-1360 ©1998 by The Journal of Bone and Joint Surgery, Inc.

7. Fig. 6 Analysis of the surface of the femoral-head implant with a scanning electron microscope revealed adherent particles in its equatorial area (x 50). J. ALLAIN et al. J Bone Joint Surg Am 1998;80:1355-1360 ©1998 by The Journal of Bone and Joint Surgery, Inc.

8. Fig. 7 Analysis of the equatorial area of the polyethylene cup with a scanning electron microscope revealed a third, additional component consisting of polyethylene wear debris and alumina particles between the polyethylene cup and the femoral-head implant... J. ALLAIN et al. J Bone Joint Surg Am 1998;80:1355-1360 ©1998 by The Journal of Bone and Joint Surgery, Inc.

9. Fig. 8 Analysis of the bottom of the polyethylene cup with a scanning electron microscope revealed an accumulation of abrasive material lying on the polyethylene (x 50). J. ALLAIN et al. J Bone Joint Surg Am 1998;80:1355-1360 ©1998 by The Journal of Bone and Joint Surgery, Inc.