Laser soldering of articular cartilage

Benno J. Zueger; Beat Ott; P. M. Mainil-Varlet; Thomas Schaffner; Jean-Francois Clemence; Heinz P. Weber; Martin Frenz

doi:10.1117/12.427791

21 May 2001 Laser soldering of articular cartilage

Benno J. Zueger, Beat Ott, P. M. Mainil-Varlet, Thomas Schaffner, Jean-Francois Clemence, Heinz P. Weber, Martin Frenz

Proceedings Volume 4244, Lasers in Surgery: Advanced Characterization, Therapeutics, and Systems XI; (2001) https://doi.org/10.1117/12.427791
Event: BiOS 2001 The International Symposium on Biomedical Optics, 2001, San Jose, CA, United States

Abstract

The surgical treatment of full thickness cartilage defects in the knee joint remains a therapeutic challenge. Recently, new techniques for articular cartilage transplantation, such as mosaicplasty, have become available for cartilage repair. The long-term success of these techniques, however, depends not only on the chondrocyte viability, but also on a lateral integration of the implant. We evaluated the feasibility of cartilage welding using albumin solder that was dye-enhanced to allow coagulation with 808 nm laser diode irradiation. Therefore circular cartilage defects (1-2 mm depth and 6 mm diameter) were made and subsequently repaired using healthy cartilage grafts, which were solder welded through the graft. Conventional histology was compared with viability staining to precisely determine the extent of thermal damage after laser welding.

Citation Download Citation

Benno J. Zueger, Beat Ott, P. M. Mainil-Varlet, Thomas Schaffner, Jean-Francois Clemence, Heinz P. Weber, and Martin Frenz "Laser soldering of articular cartilage", Proc. SPIE 4244, Lasers in Surgery: Advanced Characterization, Therapeutics, and Systems XI, (21 May 2001); https://doi.org/10.1117/12.427791

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KEYWORDS

Cartilage

Laser welding

Laser tissue interaction

Er:YAG lasers

Fiber lasers

Laser therapeutics

Natural surfaces

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