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Squeaking Hips by William L. Walter, Tim S. Waters, Mark Gillies, Shane Donohoo, Steven M. Kurtz, Amar S. Ranawat, William J. Hozack, and Michael A. Tuke.

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Presentation on theme: "Squeaking Hips by William L. Walter, Tim S. Waters, Mark Gillies, Shane Donohoo, Steven M. Kurtz, Amar S. Ranawat, William J. Hozack, and Michael A. Tuke."— Presentation transcript:

1 Squeaking Hips by William L. Walter, Tim S. Waters, Mark Gillies, Shane Donohoo, Steven M. Kurtz, Amar S. Ranawat, William J. Hozack, and Michael A. Tuke J Bone Joint Surg Am Volume 90(Supplement 4):102-111 November 1, 2008 ©2008 by The Journal of Bone and Joint Surgery, Inc.

2 A computed tomography scan of bilateral ABG II ceramic-on-ceramic hip replacements (Stryker Howmedica Osteonics, Allendale, New Jersey). William L. Walter et al. J Bone Joint Surg Am 2008;90:102- 111 ©2008 by The Journal of Bone and Joint Surgery, Inc.

3 Box plot comparing the volumetric wear rate of the squeaking retrievals with that of a historical control14. William L. Walter et al. J Bone Joint Surg Am 2008;90:102- 111 ©2008 by The Journal of Bone and Joint Surgery, Inc.

4 William L. Walter et al. J Bone Joint Surg Am 2008;90:102- 111 ©2008 by The Journal of Bone and Joint Surgery, Inc.

5 William L. Walter et al. J Bone Joint Surg Am 2008;90:102- 111 ©2008 by The Journal of Bone and Joint Surgery, Inc.

6 William L. Walter et al. J Bone Joint Surg Am 2008;90:102- 111 ©2008 by The Journal of Bone and Joint Surgery, Inc.

7 William L. Walter et al. J Bone Joint Surg Am 2008;90:102- 111 ©2008 by The Journal of Bone and Joint Surgery, Inc.

8 William L. Walter et al. J Bone Joint Surg Am 2008;90:102- 111 ©2008 by The Journal of Bone and Joint Surgery, Inc.

9 William L. Walter et al. J Bone Joint Surg Am 2008;90:102- 111 ©2008 by The Journal of Bone and Joint Surgery, Inc.

10 This graph illustrates the Stribeck curves for different bearing combination materials. William L. Walter et al. J Bone Joint Surg Am 2008;90:102- 111 ©2008 by The Journal of Bone and Joint Surgery, Inc.

11 A screen capture of the acoustic analysis software. William L. Walter et al. J Bone Joint Surg Am 2008;90:102- 111 ©2008 by The Journal of Bone and Joint Surgery, Inc.

12 Modal analysis of a thin-walled generic acetabular shell resonating in the (2,0) mode. William L. Walter et al. J Bone Joint Surg Am 2008;90:102- 111 ©2008 by The Journal of Bone and Joint Surgery, Inc.

13 Graph representing the frequency of titanium shells resonating in the (2,0) mode. William L. Walter et al. J Bone Joint Surg Am 2008;90:102- 111 ©2008 by The Journal of Bone and Joint Surgery, Inc.

14 Natural frequencies for this titanium stem are shown with and without a ceramic head attached. William L. Walter et al. J Bone Joint Surg Am 2008;90:102- 111 ©2008 by The Journal of Bone and Joint Surgery, Inc.

15 Graph of the natural frequencies of total hip replacement components. William L. Walter et al. J Bone Joint Surg Am 2008;90:102- 111 ©2008 by The Journal of Bone and Joint Surgery, Inc.

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