gms | German Medical Science

54. Jahrestagung der Norddeutschen Orthopädenvereinigung e. V.

Norddeutsche Orthopädenvereinigung

16.06. bis 18.06.2005, Hamburg

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Influence of jet-lavage system upon in vitro cement penetration in femoral cancellous bone

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  • corresponding author B. Lehner - Stiftung Orthopädische Universitätsklinik, Orthopädie I, Heidelberg
  • C. Becker - Heidelberg
  • S. Breusch - Edinburgh

Norddeutsche Orthopädenvereinigung. 54. Jahrestagung der Norddeutschen Orthopädenvereinigung e.V.. Hamburg, 16.-18.06.2005. Düsseldorf, Köln: German Medical Science; 2005. Doc05novEP40

The electronic version of this article is the complete one and can be found online at: http://www.egms.de/en/meetings/nov2005/05nov121.shtml

Published: June 13, 2005

© 2005 Lehner et al.
This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by-nc-nd/3.0/deed.en). You are free: to Share – to copy, distribute and transmit the work, provided the original author and source are credited.

Outline

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The benefit of pulsatile lavage upon cement penetration in femoral cancellous bone is well known. The aim of this study was to determine the influence of different jet-lavage systems on cement penetration in a standardized cadaver study.

In 30 paired human cadaver femora, 4 different jet-lavage systems were used to wash the cancellous bone after opening and broaching of the proximal femoral canal in the usual way. The specimens were embedded in plastic pots using plaster of Paris and bone cement was applied in a retrograde manner and subjected to a standard pressure protocol with a constant force of 3000 N. Horizontal sections were obtained at predefined levels using an automatic saw. Microradiographs were taken and analysed using image analysis.

Bone quality and the level of the obtained cross sections were similar in all femoral pairs. There was no significant difference in the different jet-lavage systems with respect to cement penetration into cancellous bone.

The use of jet-lavage seems to be of great importance in order to achieve good interdigitation with cancellous bone. The different jet-lavage systems investigated in our study did not, however, show a significant influence upon cement penetration in the proximal femur.