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Please use this identifier to cite or link to this item: http://hdl.handle.net/20.500.12710/27060
Title: Specific features of the internal acoustic meatus
Authors: Ashkar, Laila
Babuci, Angela
Zorina, Zinovia
Botnari, Tatiana
Botnaru, Doina
Keywords: temporal bone;internal acoustic opening;internal acoustic meatus;morphometry
Issue Date: 2024
Publisher: CEP Medicina
Citation: ASHKAR, Laila, BABUCI, Angela, ZORINA, Zinovia, et al. Specific features of the internal acoustic meatus. In: Cells and Tissues Transplantation. Actualities and Perspectives: the materials of the nat. scientific conf. with internat. particip., the 2nd ed. Chisinau, March 29-30th 2024: [abstracts]. Chişinău: CEP Medicina, 2024, p. 49. ISBN 978-9975-82-366-1.
Abstract: Background. The anatomical specific features of the internal acoustic meatus (IAM) are of high clinical significance in surgical access of the medial cranial fossa and in otologic surgery. The purpose of our study was to establish the anatomical variants and morphometric parameters of the internal acoustic opening (IAO) and of the IAM for a better comprehension of the course of the meatal segment of the facial nerve. Material and Methods. The research was carried out on 82 dry temporal bones (41 right and 41 left) of unknown age and gender. The bones belonged to the Department of anatomy and clinical anatomy of Nicolae Testemitanu SUMPh. The external shape, length and angles that formed between the longitudinal axis of the temporal bone pyramid (LAP) and the anterior and posterior walls of the IAM were examined and measured by a ruler, a protractor and a vernier caliper. The descriptive and inferential methods of statistical analysis were used. Results. The shape of the IAO varied from transverse and vertical oval shapes, to heart-like, semioval and quadrangular ones. In some cases, a partial or total septum of the IAM were revealed. The mean value of the transverse diameter (TD) of the IAO was 7.7±2.11 mm. On the right side the mean was 8.2±2.22, and on the left – 7.2±1.89 mm, p=0.031. The mean value of the vertical diameter (VD) of the IAO was 5.3±1.43 mm. On the right bones the mean was 5.6±1.58, and on the left ones – 5.0±1.22 mm, p=0.082. The mean length of the IAM was 10.1±2.83. On the right side the mean was 10.5±2.96, and on the left – 9.7±2.67 mm, p=0.214. The mean value of the angle that forms between the anterior wall of the IAM and the LAP was 21.4±13.67°. On the right side the mean was 22.2±14.62°, and on the left – 20.5±12.78°, p=0.564. The mean value of the angle formed between the posterior wall of the IAM and LAP was 82.4±8.02°. On the right bones the mean was 84.3±7.93, and on the left ones, it was 80.5±7.76°, p=0.032 Conclusions. Both the IAO and the IAM were variable. The morphological variants were characteristic for both sides’ samples. All the examined parameters were higher on the right temporal bones.
metadata.dc.relation.ispartof: Cells and tissues transplantation. Actualities and perspectives. The 2-nd edition. Chisinau, March 29-30th 2024
URI: http://repository.usmf.md/handle/20.500.12710/27060
ISBN: 978-9975-82-366-1
Appears in Collections:The Materials of the National Scientific Conference with International Participation, the 2nd edition, Chisinau, March 29-30th 2024: [Abstracts]

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