====== 1905 ======

[[1904]]-[[1906]]

[[Harvey Cushing]]
((Cushing H. The special field of neurological surgery. Bull Johns Hopkins Hosp. 1905;15:77–87.)),
in [[1905]], attempted to remove an [[intramedullary spinal cord tumor]] but aborted the [[procedure]] after a dorsal column [[myelotomy]].
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Harvey Cushing's paper, "The special field of neurological surgery," published in the Bulletin of The Johns Hopkins Hospital in 1905, constitutes a recognized milestone in the establishment of neurological surgery as a separate surgical specialty in the [[United States]]
((Canale DJ. William Osler and "the special field of neurological surgery". J
Neurosurg. 1989 May;70(5):759-66. PubMed PMID: 2651587.
)).
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The unilateral [[suboccipital approach]] was popularized by Woolsey ([[1903]]) and with great contributions by [[Fedor Krause]] ([[1905]]).

After several refinements and modifications through different dedicated neurosurgeons (Fish, House and Seiffert , Dandy's suboccipital approach ([[1917]]) with an ipsilateral suboccipital flap evolved to the [[retrosigmoid transmeatal approach]].