| Microsurgical anatomy of the transcallosal anterior interforniceal approach to the third ventricle. | |
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MedLine Citation:
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PMID: 18695526 Owner: NLM Status: PubMed-not-MEDLINE |
Abstract/OtherAbstract:
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OBJECTIVE: We explored relevant regional microanatomy as it relates to the challenging anterior interforniceal (AIF) approach for removing hypothalamic hamartomas. METHODS: Five silicone-injected cadaveric heads were dissected by use of frameless stereotactic navigation to reveal microanatomy and extent of exposure through the transcallosal AIF approach. Distances between trajectories to the coronal suture and the genu of the corpus callosum (CC) and between the posterior border of the anterior commissure to the lower end of the rostrum of the CC and posterior border of the foramen of Monro were measured. RESULTS: The AIF approach provided adequate access to the anterior third ventricle and related structures (i.e., hypothalamus, infundibular recess, and mamillary bodies) through the corridor bounded by the anterior commissure anteriorly and the choroid plexus at the foramen of Monro posteriorly. The mean distances from the posterior trajectory to the coronal suture and the genu of the CC were 44.8 mm (range, 43.8-46.2 mm) and 14.88 mm (14.1-15.7 mm), respectively. The mean distance from the anterior trajectory posterior to the coronal suture was 4.66 mm (0-8.9 mm), and 32.6 mm (30.5-33.9 mm) to the genu of the CC. The mean length of callosotomy was 17.52 mm (16.2-19.1 mm). The mean distance between the posterior border of the anterior commissure and the lower end of the rostrum of the CC was 5.22 mm (4.6-5.6 mm), and 10.52 mm (9.7-11.5 mm) to the posterior border of the foramen of Monro. CONCLUSION: The technically safe AIF approach permitted limited interforniceal splitting, no major deep vein manipulation, and adequate visualization of the hypothalamus, infundibular recess, and mamillary bodies. |
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Authors:
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Rungsak Siwanuwatn; Pushpa Deshmukh; Iman Feiz-Erfan; Harold L Rekate; Joseph M Zabramski; Robert F Spetzler; Jeffrey V Rosenfeld |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: Neurosurgery Volume: 62 ISSN: 1524-4040 ISO Abbreviation: Neurosurgery Publication Date: 2008 Jun |
Date Detail:
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Created Date: 2008-08-12 Completed Date: 2008-10-03 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 7802914 Medline TA: Neurosurgery Country: United States |
Other Details:
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Languages: eng Pagination: 1059-65 Citation Subset: - |
Affiliation:
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Division of Neurological Surgery, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand. |
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Republished from:
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Neurosurgery. 2005 Apr;56(2 Suppl):390-6; discussion 390-6
[PMID:
15794835
]
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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