Identification of the facial nerve main trunk by retrograde dissection of the postauricular branch

Keefe, M.A.; Castro, Jerry R.; Keefe, Morgan S.

doi:10.1016/j.otohns.2008.10.014

Cited by 12 publications

(2 citation statements)

References 2 publications

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“…However, it is not preferred much because of its variable distance to the nerve trunk and its structure between genders (26). Keefe et al suggested to find the facial nerve trunk by retrograde dissection of the posterior auricular nerve (27). However, it was stated that the nerve is difficult to recognize from the soft tissue because it is located deep in the auricular tissue and it is not always located lateral to the mastoid tip (23).…”

Section: Discussionmentioning

confidence: 99%

Anatomical relationship of facial nerve with extratemporal markers and surgical significance

ZEYBEK¹,

COSAR

2022

Journal of Basic and Clinical Health Sciences

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Purpose: Localization of the facial nerve trunk may be required during various surgical interventions such as parotidectomy. In these surgical applications, various and reliable landmarks are used to determine the localization of the facial nerve trunk. This anatomical cadaver study aims to evaluate the anatomical relationship between the facial nerve trunk, tragal pointer and mastoid tip.Methods: Adult cadaver heads were used in 12 (6 Female -6 Male) fresh frozen cadavers included in the cadaver collection of Dokuz Eylül University Faculty of Medicine, Department of Anatomy. Measurements were taken by determining the lower end of the Tragal pointer (TP) and the tip of the mastoid process (M) surrounding the nerve. Results:The mean distance between facial nerve truncus and tragal pointer was 6,538 mm; the tip of the mastoid process, 8,225 mm. Facial nerve truncus is approximately 8.446 mm deep to the line extending between the Tragal pointer-Mastoid tip. Conclusion:Tragal pointer and mastoid tip can be used separately for the detection of the facial nerve trunk, and it has also been observed that it can be found reliably in the depth of the plane passing through these two structures.

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Section: Discussionmentioning

confidence: 99%

Anatomical relationship of facial nerve with extratemporal markers and surgical significance

ZEYBEK¹,

COSAR

2022

Journal of Basic and Clinical Health Sciences

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“…Pia et al [12] used orbicular branch, on account of difficulty in locating the main trunk of the nerve in 5 cases of retrograde exploration of the nerve. Keefe et al [13] used postauricular branch to identify the main facial nerve trunk in his study. Kanatas et al [14] demonstrated the use of digastric branch to identify the main trunk.…”

Section: Discussionmentioning

confidence: 99%

Identification of Facial Nerve During Parotidectomy: A Combined Anatomical & Surgical Study

Pal

Sengupta

Chowdhury

et al. 2013

Indian J Otolaryngol Head Neck Surg

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To find out the most easily identifiable and anatomically consistent landmark for identification of facial nerve during parotid surgery. Ten cadaveric dissections and ten live parotid surgeries for different types of parotid tumours were done. Cadaveric dissection was performed in the Department of Anatomy and the surgeries were done in the Department of ENT and Head and Neck surgery of R. G. Kar Medical College of Kolkata. The distance of the facial nerve trunk from three most commonly used landmarks (viz., tympanomastoid suture, tragal pointer and posterior belly of digastric muscle) was measured in both cadaver and live patients. The ease of identification of the nerve trunk using each of the landmarks, particularly during live surgery was also assessed. The mean distance of the tympanomastoid suture from the facial nerve trunk was 3.5 mm (cadaver) and 3.87 mm (live surgery), the tragal pointer was found to be at a mean distance of 16.61 mm (cadaver) and 16.36 mm (live surgery) and in case of the posterior belly of digastric muscle it was 7.41 mm (cadaver) and 8.03 mm (live surgery). During live surgery the posterior belly of digastric was found to be the most easily identifiable landmark with a consistent anatomical relationship with the nerve trunk. The posterior belly of digastric muscle is the most easily identifiable and a very consistent landmark for facial nerve dissection during parotidectomy. When supplemented with the tragal pointer, accuracy in identifying the facial nerve trunk is very high, thereby avoiding inadvertent injury to the nerve trunk.

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Speicheldrüsen, Nervus Facialis

Iro

2009

Handbuch HNO 2009

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Identification of the facial nerve main trunk by retrograde dissection of the postauricular branch

Cited by 12 publications

References 2 publications

Anatomical relationship of facial nerve with extratemporal markers and surgical significance

Anatomical relationship of facial nerve with extratemporal markers and surgical significance

Identification of Facial Nerve During Parotidectomy: A Combined Anatomical & Surgical Study

Speicheldrüsen, Nervus Facialis

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