Laser radiation at various wavelengths for decompression of intervertebral disk. Experimental observations on human autopsy specimens.
Clin Orthop Relat Res
; (267): 245-50, 1991 Jun.
Article
em En
| MEDLINE
| ID: mdl-1904334
ABSTRACT
The interaction of laser radiation with the nucleus pulposus from autopsy specimens of human intervertebral disks was evaluated at different wavelengths (193 nm, 488 nm & 514 nm, 1064 nm, 1318 nm, 2150 nm, 2940 nm, and 10600 nm). A significant correlation of linear least squares fit of the mass ablated as a function of incident energy was found for all lasers used except the Excimer at 193 nm. The 2940-nm ErbiumYAG laser was most efficient in terms of mass of disk ablated per joule in the limited lower range where this wavelength was observed. At higher energy levels, the CO2 laser in the pulsed mode was most efficient. However, the NdYAG 1064-nm and 1318-nm lasers are currently best suited for percutaneous laser disk decompression because of the availability of usable waveguides. Carbonization of tissue with the more penetrating NdYAG 1064-nm laser increases the efficiency of tissue ablation and makes it comparable to the NdYAG 1318-nm laser.
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Coleções:
01-internacional
Temas:
Geral
/
Agentes_cancerigenos
Base de dados:
MEDLINE
Assunto principal:
Terapia a Laser
/
Deslocamento do Disco Intervertebral
Limite:
Humans
Idioma:
En
Revista:
Clin Orthop Relat Res
Ano de publicação:
1991
Tipo de documento:
Article