Anatomical Features of Intratemporal Course of Facial Nerve and its Variations
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Le résumé fourni par la source
Introduction Facial nerve has the longest and complex course in its bony canal. The anatomical variations make the nerve prone to injury during mastoid surgeries. Having a thorough anatomical knowledge and its variations is must for the surgeons to avoid injury to this vital structure and for the safe surgery. The objective of the study was to describe the anatomical variations of intratemporal portion of facial nerve. Materials and methods The study was conducted in the department of otorhinolaryngology in the temporal bone dissection laboratory of a tertiary health care centre. Fifty wet temporal bones were dissected by the same team of surgeons for the duration of one year to study the various anomalies of the intratemporal course of the facial nerve and its relations with the other important middle ear structures. Results The mean length of the labyrinth, tympanic and mastoid segment of the facial nerve was 4.1 mm (±0.6 mm), 9.34 mm (±1.12 mm) and 12.8 mm (±1.8 mm), respectively. The mean distance between the horizontal segment and posterior edge of the oval window was 3.1 mm (±1.03 mm). Dehiscence in the tympanic segment was observed in three temporal bones (6%). Two (4%) specimens had bifurcation of the mastoid segment of the facial nerve. In all dissected temporal bones, the chorda tympani travelled in an ascending path. Conclusion The most common site for facial nerve anomaly is the tympanic portion. Anomalous conditions that can place the nerve at risk of being injured by the surgeons are highlighted here.
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Le contrôle bibliographique ouvert
DOI retrouvé dans Crossref DOI retrouvé ; titre concordant.
- Titre Crossref
- Anatomical Features of Intratemporal Course of Facial Nerve and its Variations
- Date Crossref
- 02/08/2018
- Éditeur
- Springer Science and Business Media LLC
- Type
- journal-article
Ce recoupement confirme des métadonnées liées au DOI. Il ne confirme ni la méthode ni les conclusions de l’étude, et il ne compte pas comme une seconde source scientifique indépendante.
Où se fait cette recherche
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Rainbow Children's Hospital pays non établi dans la noticeÉtablissement de santé
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ESIC Hospital pays non établi dans la noticeÉtablissement de santé
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Jawaharlal Institute of Post Graduate Medical Education and Research pays non établi dans la noticeUniversité ou école supérieure
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Osmania Medical College pays non établi dans la noticeÉtablissement de santé
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Otorhinolaryngology pays non établi dans la noticeOrganisation à but non lucratif
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Sri Lakshmi Narayana Institute of Medical Science . General Surgery pays non établi dans la noticeStructure de recherche
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ESIC Medical College . Otolaryngology pays non établi dans la noticeUniversité ou école supérieure
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. Otolaryngology pays non établi dans la noticeOrganisation à but non lucratif
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Jawaharlal Institute of Postgraduate Medical Education and Research . Surgery pays non établi dans la noticeStructure de recherche
Rainbow Children's Hospital, ESIC Hospital et Jawaharlal Institute of Post Graduate Medical Education and Research, avec 6 autres affiliations.
Une affiliation ne permet pas de déduire la nationalité d’un auteur.