Utilization of speckle techniques at measurements of biomechanical characteristics of cadaverous human lumbar spine samples after application of various surgical fixation methods

Ludek Bartonek; Jiri Keprt Sr.; Jiri Charamza; Lumir Hrabalek

doi:10.1117/12.500040

14 October 2003 Utilization of speckle techniques at measurements of biomechanical characteristics of cadaverous human lumbar spine samples after application of various surgical fixation methods

Ludek Bartonek, Jiri Keprt Sr., Jiri Charamza, Lumir Hrabalek

Author Affiliations +

Proceedings Volume 5143, Novel Optical Instrumentation for Biomedical Applications; (2003) https://doi.org/10.1117/12.500040
Event: European Conferences on Biomedical Optics 2003, 2003, Munich, Germany

Abstract

Special equipment was realized for testing of stabilization methods of samples of lower part of the spine (L1-L5). During straining and measurement of the rigidity of the sample as a whole it is also necessary to observe the movement of individual parts of the sample. This movement is non-contact followed with the help of round targets connected to the appropriate vertebra to be observed. The watched targets are lit with a lamp or laser, and are identified by two CCD cameras. An optical signal is brought into a computer and evaluated by the fast Fourier transformation method. The period and direction of interference fringes determine the size and the direction of the shift.

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Ludek Bartonek, Jiri Keprt Sr., Jiri Charamza, and Lumir Hrabalek "Utilization of speckle techniques at measurements of biomechanical characteristics of cadaverous human lumbar spine samples after application of various surgical fixation methods", Proc. SPIE 5143, Novel Optical Instrumentation for Biomedical Applications, (14 October 2003); https://doi.org/10.1117/12.500040

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