Modelling the effects of different fracture geometries and healing stages on ultrasound signal loss across a long bone fracture


Dodd, S.P., Miles, A.W., Gheduzzi, S., Humphrey, V.F. and Cunningham, J.L. (2007) Modelling the effects of different fracture geometries and healing stages on ultrasound signal loss across a long bone fracture. Computer Methods in Biomechanics and Biomedical Engineering, 10, (5), 371-375. (doi:10.1080/10255840701502387).

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Description/Abstract

The effect on the signal amplitude of ultrasonic waves propagating along cortical bone plates was modelled using a 2D Finite Difference code. Different healing stages, represented by modified fracture geometries were introduced to the plate model. A simple transverse and oblique fracture filled with water was introduced to simulate the inflammatory stage. Subsequently, a symmetric external callus surrounding a transverse fracture was modelled to represent an advanced stage of healing. In comparison to the baseline (intact plate) data, a large net loss in signal amplitude was produced for the simple transverse and oblique cases. Changing the geometry to an external callus with different mechanical properties caused the net loss in signal amplitude to reduce significantly. This relative change in signal amplitude as the geometry and mechanical properties of the fracture site change could potentially be used to monitor the healing process.

Item Type: Article
Additional Information:
ISSNs: 1025-5842 (print)
Related URLs:
Subjects: R Medicine > R Medicine (General)
T Technology > TA Engineering (General). Civil engineering (General)
Q Science > QP Physiology
Divisions: University Structure - Pre August 2011 > Institute of Sound and Vibration Research > Fluid Dynamics and Acoustics
ePrint ID: 49464
Date Deposited: 14 Nov 2007
Last Modified: 27 Mar 2014 18:33
URI: http://eprints.soton.ac.uk/id/eprint/49464

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