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Proceedings Paper

Optical phase analysis in drilled cortical porcine bones using digital holographic interferometry
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Paper Abstract

A study in porcine femoral bones with and without the presence of cortical drilling is presented. An out of plane digital holographic interferometer is used to retrieve the optical phase during the controlled compression tests. These tests try to simulate physiological deformations in postmortem healthy bones and compare their mechanical response with those having a cortical hole. The cortical drilling technique is widely used in medical procedures to fix plaques and metallic frames to a bone recovering from a fracture. Several materials and drilling techniques are used for this purpose. In this work we analyze the superficial variations of the bone when different drilling diameters are used. By means of the optical phase it is possible to recover the superficial deformation of the tissue during a controlled deformation with high resolution. This information could give a better understand about the micro structural variations of the bone instead of a bulk response. As proof of principle, several tests were performed to register the modes and ranges of the displacements for compressive loads. From these tests notorious differences are observed between both groups of bones, having less structural stiffness the drilled ones as expected. However, the bone's characteristic to absorb and adjust itself due the load is also highly affected according to the number of holes. Results from different kind of samples (undrilled and drilled) are presented and discussed in this work.

Paper Details

Date Published: 9 March 2016
PDF: 8 pages
Proc. SPIE 9718, Quantitative Phase Imaging II, 97181S (9 March 2016); doi: 10.1117/12.2216949
Show Author Affiliations
César G. Tavera R., Ctr. de Investigaciones en Óptica, A.C. (Mexico)
Manuel H. De la Torre I., Ctr. de Investigaciones en Óptica, A.C. (Mexico)
J. Mauricio Flores M., Ctr. de Investigaciones en Óptica, A.C. (Mexico)
Juan M. Luna H., Ctr. de Investigaciones en Óptica, A.C. (Mexico)
Manuel de J. Briones R., Ctr. de Investigaciones en Óptica, A.C. (Mexico)
Fernando Mendoza S., Ctr. de Investigaciones en Óptica, A.C. (Mexico)

Published in SPIE Proceedings Vol. 9718:
Quantitative Phase Imaging II
Gabriel Popescu; YongKeun Park, Editor(s)

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