75
Views
1
CrossRef citations to date
0
Altmetric
Original Articles

Controlled plastic deformation for the fastening mechanism of an internal fixation device. The new Mennen 3 PeriPro plate

, &
Pages 111-120 | Received 25 Nov 2005, Accepted 06 Sep 2006, Published online: 10 Mar 2011
 

Abstract

The Mennen femur plate is a fixation device used for the treatment of femoral periprosthetic fractures. It features a novel fastening method where curved prongs are plastically deformed securing the implant to the bone. Although this “clamp-on” method has been successfully used to treat fractures of long bones, there are no literature data assessing the nature of the required plastic deformation.

In the present study, the parameters influencing the performance of the prongs were identified and further explored using numerical modeling. The new Mennen 3 PeriPro plate is briefly discussed focusing on the new sculpted formation of the prongs. Their design was optimized to effectively control the magnitude and position of the required plastic deformation achieving enhanced anchorage on the fractured bone with minimum effort.

The work presented contains all the necessary steps in analysing a clinical problem using finite elements and illustrates how effective use of simulation techniques can accurately predict and effectively control the required plastic deformation of a structure.

Acknowledgements

The authors wish to acknowledge the financial support by the UK Department of Trade and Industry and C.H. Medical Ltd under the umbrella of a Teaching Company Scheme (now Knowledge Transfer Partnerships) that allowed this research to be completed.

Notes

Postal address (for all authors): Department of Engineering, Harrison Building North Park Road, Exeter, EX4 4QF, UK.

This article includes a word that is or is asserted to be a proprietary term or trade mark. Its inclusion does not imply it has acquired for legal purposes a non-proprietary or general significance, nor is any other judgement implied concerning its legal status.

Additional information

Notes on contributors

C. A. Pappas

¶ ¶Postal address (for all authors): Department of Engineering, Harrison Building North Park Road, Exeter, EX4 4QF, UK.

P. G. Young

¶ † † [email protected]

A. J. C. Lee

¶ ‡ ‡ [email protected]

Reprints and Corporate Permissions

Please note: Selecting permissions does not provide access to the full text of the article, please see our help page How do I view content?

To request a reprint or corporate permissions for this article, please click on the relevant link below:

Academic Permissions

Please note: Selecting permissions does not provide access to the full text of the article, please see our help page How do I view content?

Obtain permissions instantly via Rightslink by clicking on the button below:

If you are unable to obtain permissions via Rightslink, please complete and submit this Permissions form. For more information, please visit our Permissions help page.