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Japanese

Basilar Impression and other Anomalies in the Region of the Foramen Magnum Keiji Sano 1 , Hiroshi Nawata 1 1Dept. of Neurosurgery, Univ. of Tokyo pp.263-287
Published Date 1964/4/25
DOI https://doi.org/10.11477/mf.1431904088
  • Abstract
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 19 cases of basilar impression were reported. Associated developmental anomalies in these cases were assimilation of the atlas (17/19 cases), Chiari-Arnold syndrome (12/19) and Klippel-Feil syndrome (10/19).

 The basilar impression is divided into 4 types according to the part of impression of the rim of the foramen magnum, the anterior (2/19 cases), the lateral (6/19), the anterolateral (7/19) and the total (4/19). All these cases underwent suboccipital decompression with laminectomy of C1, and C2(and C3 occasionally). The results were excellent, 14 cases being completely or nearly completely recovered and 5 cases being markedly improved.

 The etiology, symptom otology- and diagnostics were discussed. The radi ological examinations including craniometric data were described in detail. A new line, "the orbitooccipital line, "which connects the infraorbital point on the film side and the most caudal point of the occipital bone in the lateral view, was proposed.


Copyright © 1964, Igaku-Shoin Ltd. All rights reserved.

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電子版ISSN 1882-1243 印刷版ISSN 0001-8724 医学書院

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