Back to Search
Start Over
Scratching in the minefield: using intertriangles line to safely perform anterior petrosectomy.
- Source :
-
Surgical & Radiologic Anatomy . May2023, Vol. 45 Issue 5, p513-522. 10p. - Publication Year :
- 2023
-
Abstract
- Purpose: The transpetrosal–transtentorial approach provides a practical and safe surgical corridor for the treatment of petroclival region lesions. Any inaccuracies while performing this surgical technique can result in catastrophic results; nevertheless, this can be prevented under the guidance of a detailed anatomical orientation. An "intertriangles line" was defined to preserve the internal auditory canal (IAC) and cochlea during extradural bone drilling. Methods: The anatomical study consisted of two groups: the cadaveric head and the skull group. A literature-based landmark and criteria list was created to examine the borders of the Kawase triangle/space and evaluate the anatomical structures that may be at risk during drilling for anterior petrosectomy. Results: A total of 20 cadaveric head sides and 30 dried skull sides were examined. The rhomboid area was divided into two triangles with a common the intertriangles line. In all dissections, the IAC was found to be localized posterior to the "intertriangle line". A minimum distance of 1 mm for the Internal Carotid artery and 2 mm for the IAC can serve as threshold values to be considered by the surgeon during drilling for petrosectomy. Conclusions: Kawase's area resembles a minefield, in which every step and manipulation should be considered. A minimal but effective resection of the cranial base is needed to increase safety and decrease morbidity during skull base surgery. Furthermore, this study investigated accessible and prominent landmarks to establish a feasible area of triangles and define the intertriangles line to guide the neurosurgeon under microscope and avoid IAC injury. [ABSTRACT FROM AUTHOR]
- Subjects :
- *INTERNAL carotid artery
*SKULL surgery
*SKULL
*OPERATIVE surgery
Subjects
Details
- Language :
- English
- ISSN :
- 09301038
- Volume :
- 45
- Issue :
- 5
- Database :
- Academic Search Index
- Journal :
- Surgical & Radiologic Anatomy
- Publication Type :
- Academic Journal
- Accession number :
- 163314879
- Full Text :
- https://doi.org/10.1007/s00276-023-03131-w