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Evaluation of modal analysis techniques using physical models to detect osseointegration of implants in transfemoral amputees

Cairns, Nicola Jeanne and Adam, Clayton and Pearcy, Mark and Smeathers, James (2011) Evaluation of modal analysis techniques using physical models to detect osseointegration of implants in transfemoral amputees. [Proceedings Paper]

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Abstract

Non-invasive vibration analysis has been used extensively to monitor the progression of dental implant healing and stabilization. It is now being considered as a method to monitor femoral implants in transfemoral amputees. This paper evaluates two modal analysis excitation methods and investigates their capabilities in detecting changes at the interface between the implant and the bone that occur during osseointegration. Excitation of bone-implant physical models with the electromagnetic shaker provided higher coherence values and a greater number of modes over the same frequency range when compared to the impact hammer. Differences were detected in the natural frequencies and fundamental mode shape of the model when the fit of the implant was altered in the bone. The ability to detect changes in the model dynamic properties demonstrates the potential of modal analysis in this application and warrants further investigation.

Item type: Proceedings Paper
ID code: 41119
Keywords: modal analysis , transfemoral amputees , osseointegration , implants, physical models , educational institutions , vibrations , shape, analytical models, bones, Engineering design
Subjects: Technology > Engineering (General). Civil engineering (General) > Engineering design
Department: Faculty of Engineering > Design, Manufacture and Engineering Management
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Depositing user: Pure Administrator
Date Deposited: 12 Sep 2012 14:46
Last modified: 17 Jul 2013 14:12
URI: http://strathprints.strath.ac.uk/id/eprint/41119

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