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In 1949, Henk Verbiest first proposed the concept of stenosis in spinal canal, lumbar intervertebral foramen; that is, lumbar spinal stenosis (LSS) 1) 2).

In 1949, Lars Leksell developed his Arc Centered Stereotactic Frame based on Polar coordinate system.

At the first post-war International Congress of Neurology in Paris, 1949, Alfonso Asenjo, from Chile, arranged for a meeting with a group of neurosurgeons in order to discuss how neurosurgery might present itself at international congresses in the future. In the end of a deliberate discussion it was decided to participate as a separate group.

Verbiest H. Primary stenosis of the lumbar spinal canal in adults, a new syndrome. Ned Tijdschr Geneeskd. 1950;94:2415–2433.
VERBIEST H. A radicular syndrome from developmental narrowing of the lumbar vertebral canal. J Bone Joint Surg Br. 1954 May;36-B(2):230-7. PubMed PMID: 13163105.
1949.txt · Last modified: 2019/02/11 12:58 by administrador