Abstract:
:Microsurgical anatomy for the pterional approach was studied regarding the origin and the course of the ophthalmic artery and the distal dural ring using human cadaveric specimens, with special reference to the surrounding bony structures. In 50 human adult formalin-fixed cadaveric cerebral hemispheres and 10 block specimens of the skull base region including the ophthalmic artery and the carotid dural ring were examined under magnification using an operating microscope. The ophthalmic artery originated from the intradural portion of the internal carotid artery (ICA), except in 5% where the ophthalmic artery originated extradurally. The extradural origin had two patterns: one was that the ophthalmic artery penetrated the bony optic strut (trans-optic strut pattern) and the other was that it coursed into the optic canal proximally to the optic strut without bone penetration (supra-optic strut pattern). The origin of the intradural ophthalmic artery was commonly located at the medial third of the superior wall of the ICA (78%). The ophthalmic artery was commonly taking an S-shaped course in the intradural portion and entered the optic canal over the optic strut. The distal dural ring was tightly adherent to the internal carotid artery; circumferential sectioning of the dural ring is required to mobilize the internal carotid artery. When approaching juxtadural ring ICA aneurysms via the pterional route, it is important to recognize the extradural origin, especially the trans-optic strut type, and to precisely understand the microsurgical anatomy around the dural ring.
journal_name
Neurol Resjournal_title
Neurological researchauthors
Hokama M,Hongo K,Gibo H,Kyoshima K,Kobayashi Sdoi
10.1179/016164101101198703subject
Has Abstractpub_date
2001-06-01 00:00:00pages
331-5issue
4eissn
0161-6412issn
1743-1328journal_volume
23pub_type
杂志文章abstract:OBJECTIVES:Recent studies have suggested that rehabilitation therapy can accelerate functional recovery after a stroke. Although often overlooked, the cortical hemisphere contralateral to an infarction plays an important role. This study investigates alterations in metabolism of both the damaged ('ipsilateral') as well...
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pub_type: 杂志文章
doi:10.1080/01616412.2018.1454092
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pub_type: 杂志文章,评审
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pub_type: 临床试验,杂志文章,多中心研究
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pub_type: 临床试验,杂志文章
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更新日期:1996-12-01 00:00:00
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