1 May 1991 Comparison of the ablation of polymethylmethacrylate by two fiber-optic-compatible infrared lasers
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Proceedings Volume 1424, Lasers in Orthopedic, Dental, and Veterinary Medicine; (1991) https://doi.org/10.1117/12.43987
Event: Optics, Electro-Optics, and Laser Applications in Science and Engineering, 1991, Los Angeles, CA, United States
Abstract
Polymethylmethacrylate (PMMA) is a compound frequently employed in orthopedic surgery for the fixation of prosthetics and other materials to bone. It is employed for this purpose due to its excellent strength and durability. However, these same properties also make the removal of PMMA very difficult. With this problem in mind, the ablation of PMMA by the Nd:YAG and the THC:YAG lasers was compared. The tip of the optical fiber was placed at a distance to achieve optimal spot size on to pre-weighed blocks of PMMA (Simplex - Howmedica, Rutherford, N.J.). Ablation was carried out with both the THC:YAG and Nd:YAG lasers over a range of powers (5 - 20 watts) and time periods. The amount of PMMA ablated was then determined and compared. Throughout the energy range examined, the THC:YAG laser was more effective than its Neodynium counterpart at the power levels tested. Present clinical application of these lasers in PMMA ablation is limited by technical obstacles.
© (1991) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Jonathan P. Garino, Jonathan P. Garino, David Nazarian, David Nazarian, Mark I. Froimson, Mark I. Froimson, Ronald P. Grelsamer, Ronald P. Grelsamer, Michael R. Treat, Michael R. Treat, } "Comparison of the ablation of polymethylmethacrylate by two fiber-optic-compatible infrared lasers", Proc. SPIE 1424, Lasers in Orthopedic, Dental, and Veterinary Medicine, (1 May 1991); doi: 10.1117/12.43987; https://doi.org/10.1117/12.43987
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