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Mircoscopic internasal Surgery:Measurement and Reform of Surgical Instruments Masahiro Takahashi 1 , Megumi Morita 3 , Mitsuko Ito 2 , Jin Kanzaki 1 1Department of Otolaryngology, Keio University School of Medicine 2Department of Otolaryngology, Shiseikai Hospital 3Department of Otolaryngology, Tokyo Women's Medical College pp.29-33
Published Date 1991/1/20
DOI https://doi.org/10.11477/mf.1411900224
  • Abstract
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We reported surgical instruments for microscopic intranasal operation such as a self-retaining ret-ractor speculum, small forceps and stripping knives for optic nerve decompression. Furthermore, we measured the lengths from the nostril to traget structures and the angle between a view axis and the nose back on lateral view of x-ray films in 95 persons which were taken with a piece of solder put on patient's nose back. The depth to each of the target structures (the roof of the ethmoid cavity, optic nerve canal, the frontal and rear walls of the sphenoid cavity, the nasopharyngeal wall) increase with aging until a mid-teen age. In contrast, the angle of view axis decrease with aging. We showed predicted values of the depth and angle at the age of 3, 7, 10 and 16 years.


Copyright © 1991, Igaku-Shoin Ltd. All rights reserved.

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電子版ISSN 1882-1316 印刷版ISSN 0914-3491 医学書院

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