Ablation of Porcine Ligamentum Flavum with Ho:YAG, Q-Switched Ho:YAG, and Quadrupled Nd:YAG Lasers
MIT Lincoln Laboratory Lexington United States
Pagination or Media Count:
Ligamentum flavum LF is a tough, rubbery connective tissue providing a portion of the ligamentous stability to the spinal column, and in its hypertrophied state forms a significant compressive pathology in degenerative spinal stenosis. The interaction of lasers and this biological tissue have not been thoroughly studied. Technological advances improving endoscopic surgical access to the spinal canal makes selective removal of LF using small, flexible tools such as laser coupled fiber optics increasingly attractive for treatment of debilitating spinal stenosis. Testing was performed to assess the effect of Ho YAG, Qswitched Ho YAG, and frequency quadrupled Nd YAG lasers on samples of porcine LF. The objective was to evaluate the suitability of these lasers for surgical removal of LF.
- Anatomy and Physiology
- Lasers and Masers