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The Effect of the Extracorporeal Shock Wave Lithotriptor on Bone Cement by B. W. Schreurs; A. F. Bierkens; R. Huiskes; A. J. M. Hendrikx; T. J. J. H. Slooff is a Medicine article available to read on EtoBox.

What is The Effect of the Extracorporeal Shock Wave Lithotriptor on Bone Cement about?

For the purpose of studying its applicability for acrylic cement removal during total hip revision surgery, experiments with an extracorporeal shock wave lithotriptor were camed out. High-energy shock waves (HESW) were focussed on discs of polymethylmethacrylate bone cement. The average discharge was 18.1 kV; the number of shock waves 0, 100, 250, 500, 1000, and 2000; the application rate was 85 shocks/min. Macroscopic or radiographic effects were not in evidence. Microscopically, typical lesions in a small concentric focal area with a diameter of 8.5 (k 2.5) mm were found. The individual lesions were smaller than 0.1 mm, and displayed characteristic shapes. The area porosity increased with the number of shocks. The maximal area porosity caused by the HESW, measured by quantitative microscopy, was 4% after 2000 shock waves. The lesions were also studied by scanning electron microscopy. It can be concluded that HESW causes only microscopic lesions on the frontal surface of discs of bone cement, and that these lesions are small compared to the pores normally present in bone cement, when applied clinically. ## Methods Sulfix-6\* bone cement was used. Cement preparation was carried out

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Author

B. W. Schreurs; A. F. Bierkens; R. Huiskes; A. J. M. Hendrikx; T. J. J. H. Slooff

Publisher

John Wiley and Sons; Wiley (John Wiley & Sons); Heterocorporation; Wiley (ISSN 0021-9304)

Published

1991

Language

EN

Field

Medicine (Health Sciences)