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Proceedings Paper

Intraoperative clinical use of low-power laser irradiation following surgical treatment of the tethered spinal cord
Author(s): S. Rochkind; M. Alon; G. E. Ouaknine; S. Weiss; J. Avram; Nisim Razon; Rachel Lubart; Harry Friedmann
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Paper Abstract

Based on previous experimental investigations which indicated that low-power laser irradiation has a significant therapeutic effect and treatment potential on the injured nerve tissue, the authors began using this method in clinical practice. This data represents the first clinical results in the treatment of four patients with tethered spinal cord resulting from fibrous adhesions at the site of previous myelomeningocele and lypomyelomeningocele repair, thickened filum terminale and spinal lipoma. After surgical release of the tethered spinal cord, stable evoked responses were recorded and the conus medullaris was subjected to direct laser irradiation (CW He-Ne laser, 632.8nm, 7Jcm2). The findings show intraoperative laser treatment increases evoked responses from 15-52% (mean 26.7%). In a previous work, it was shown that direct laser irradiation promotes restoration of the electrophysiological activity of the severely injured peripheral nerve, prevents degenerative changes in neurons of the spinal cord and induces proliferation of astrocytes and oligodendrocytes. This suggested a higher metabolism in neurons and improved ability for myelin production under the influence of laser treatment. It is well known that tethering of the spinal cord causes mechanical damage to neuronal cell membranes leading to metabolic disturbances in the neurons. For this reason, the authors believe that using low-power laser irradiation may improve neuronal metabolism, prevent neuronal degeneration and promote improved spinal cord function and repair.

Paper Details

Date Published: 1 May 1991
PDF: 7 pages
Proc. SPIE 1428, Three-Dimensional Bioimaging Systems and Lasers in the Neurosciences, (1 May 1991); doi: 10.1117/12.44134
Show Author Affiliations
S. Rochkind, Tel-Aviv Sourasky Medical Ctr. and Bar Ilan Univ. (Israel)
M. Alon, Tel-Aviv Sourasky Medical Ctr. and Bar Ilan Univ. (Israel)
G. E. Ouaknine, Tel-Aviv Sourasky Medical Ctr. and Bar Ilan Univ. (Israel)
S. Weiss, Tel-Aviv Sourasky Medical Ctr. and Bar Ilan Univ. (Israel)
J. Avram, Tel-Aviv Sourasky Medical Ctr. and Bar Ilan Univ. (Israel)
Nisim Razon, Tel-Aviv Sourasky Medical Ctr. and Bar Ilan Univ. (Israel)
Rachel Lubart, Tel-Aviv Sourasky Medical Ctr. and Bar Ilan Univ. (Israel)
Harry Friedmann, Tel-Aviv Sourasky Medical Ctr. and Bar Ilan Univ. (Israel)


Published in SPIE Proceedings Vol. 1428:
Three-Dimensional Bioimaging Systems and Lasers in the Neurosciences
James E. Boggan; Leonard J. Cerullo; Louis C. Smith, Editor(s)

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