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The dawn of computer-assisted robotic osteotomy with ytterbium-doped fiber laser

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Abstract

Currently, laser radiation is used routinely in medical applications. For infrared lasers, bone ablation and the healing process have been reported, but no laser systems are established and applied in clinical bone surgery. Furthermore, industrial laser applications utilize computer and robot assistance; medical laser radiations are still mostly conducted manually nowadays. The purpose of this study was to compare the histological appearance of bone ablation and healing response in rabbit radial bone osteotomy created by surgical saw and ytterbium-doped fiber laser controlled by a computer with use of nitrogen surface cooling spray. An Ytterbium (Yb)-doped fiber laser at a wavelength of 1,070 nm was guided by a computer-aided robotic system, with a spot size of 100 μm at a distance of approximately 80 mm from the surface. The output power of the laser was 60 W at the scanning speed of 20 mm/s scan using continuous wave system with nitrogen spray level 0.5 MPa (energy density, 3.8 × 104 W/cm2). Rabbits radial bone osteotomy was performed by an Yb-doped fiber laser and a surgical saw. Additionally, histological analyses of the osteotomy site were performed on day 0 and day 21. Yb-doped fiber laser osteotomy revealed a remarkable cutting efficiency. There were little signs of tissue damage to the muscle. Lased specimens have shown no delayed healing compared with the saw osteotomies. Computer-assisted robotic osteotomy with Yb-doped fiber laser was able to perform. In rabbit model, laser-induced osteotomy defects, compared to those by surgical saw, exhibited no delayed healing response.

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Acknowledgments

This work was partially supported by MEXT KAKENHI no. 24791929. The laser system was provided by Genial Light Co. Ltd.

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Authors and Affiliations

  1. Department of Plastic Surgery, Hyogo College of Medicine, 1-1 Mukogawa, Nishinomiya City, Hyogo Prefecture, 663-8501, Japan

    Yohei Sotsuka, Soh Nishimoto, Tomoko Tsumano, Kenichiro Kawai, Hisako Ishise & Masao Kakibuchi

  2. Genial Light Co. Ltd., 1820 Kurematsu-cho, Nishi-ku, Hamamatsu, Shizuoka, 431-1202, Japan

    Ryo Shimokita & Taisuke Yamauchi

  3. Laser Processing Field, The Graduate School for The Creation of New Photonics Industries, 1955-1 Kurematsu-cho, Nishi-ku, Hamamatsu, Shizuoka, 431-1202, Japan

    Shin-ichiro Okihara

Authors
  1. Yohei Sotsuka
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  2. Soh Nishimoto
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  3. Tomoko Tsumano
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  4. Kenichiro Kawai
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  5. Hisako Ishise
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  6. Masao Kakibuchi
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  7. Ryo Shimokita
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  8. Taisuke Yamauchi
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  9. Shin-ichiro Okihara
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Correspondence to Yohei Sotsuka.

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Sotsuka, Y., Nishimoto, S., Tsumano, T. et al. The dawn of computer-assisted robotic osteotomy with ytterbium-doped fiber laser. Lasers Med Sci 29, 1125–1129 (2014). https://doi.org/10.1007/s10103-013-1487-y

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  • DOI: https://doi.org/10.1007/s10103-013-1487-y

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