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Proceedings Paper

1064-nm Nd:YAG laser nucleotomy
Author(s): Sandor G. Vari; Vani R. Pergadia; Wei-Qiang Shi; Wendy J. Snyder; Michael C. Fishbein; Warren S. Grundfest
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Paper Abstract

The high incidence of patients with clinical and neurological symptoms of lumbar disc herniation has spurred the development of less invasive and more cost efficient methods to treat patients. In this study we evaluated pulsed and continuous wave (cw) 1064 nm Nd:YAG laser ablation and induced thermal damage in sheep intervertebral disc. We used the Heraeus LaserSonics Hercules 5040 (Nd:YAG) laser system and 400 micrometers bare and 600 micrometers ball-tipped fibers in cw and pulsed mode. For the laser parameters and fibers used in this study, ablation of the intervertebral disc was successful and thermal damage did not exceed 0.5 mm. Varying beam diameters and focusing abilities (i.e., bare and ball) did not produce any difference in the coagulation thermal effect.

Paper Details

Date Published: 21 July 1993
PDF: 11 pages
Proc. SPIE 1880, Lasers in Orthopedic, Dental, and Veterinary Medicine II, (21 July 1993); doi: 10.1117/12.148308
Show Author Affiliations
Sandor G. Vari, Cedars-Sinai Medical Ctr. (United States)
Vani R. Pergadia, Cedars-Sinai Medical Ctr. (United States)
Wei-Qiang Shi, Cedars-Sinai Medical Ctr. (United States)
Wendy J. Snyder, Cedars-Sinai Medical Ctr. (United States)
Michael C. Fishbein, Cedars-Sinai Medical Ctr. (United States)
Warren S. Grundfest, Cedars-Sinai Medical Ctr. (United States)

Published in SPIE Proceedings Vol. 1880:
Lasers in Orthopedic, Dental, and Veterinary Medicine II
Dov Gal; Stephen J. O'Brien; C. T. Vangsness; Joel M. White; Harvey A. Wigdor, Editor(s)

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