PMID: 8441534Feb 1, 1993Paper

An external reference to identify the internal auditory canal in middle fossa surgery

Otolaryngology--head and Neck Surgery : Official Journal of American Academy of Otolaryngology-Head and Neck Surgery
P J Catalano, A R Eden

Abstract

Traditional middle fossa landmarks, such as the facial hiatus and arcuate eminence, are often unreliable. This study was performed to establish an external reference from which to identify precisely the surgical anatomy of the middle fossa. The head of the malleus was identified from the middle fossa in the temporal bones of 20 adults. The lateral cortex of the temporal squamosa at the zygomatic root was used as the external plane of reference. The head of the malleus was consistently located 18 mm medial to the outer cortex on a line perpendicular to the reference plane. Medial extension of this line through the malleus head bisected the internal auditory canal. We recommend this method to precisely locate the malleus head as the first landmark in the middle fossa. Other structures, such as the geniculate ganglion, internal auditory canal, and superior semicircular canal can then be safely identified. We also present our results using this technique in six consecutive patients undergoing middle fossa surgery during the past 12 months.

References

Jun 1, 1975·The Journal of Laryngology and Otology·M D Graham

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Citations

Jul 2, 2003·The Annals of Otology, Rhinology, and Laryngology·Ho-Ki Lee, Won-Sang Lee
Dec 1, 2018·Journal of Neurosurgery·Maria Peris-CeldaMichael J Link
Jun 9, 2020·The Journal of Craniofacial Surgery·Zhen Liu, Zhiqiang Yi
Feb 5, 2003·The Laryngoscope·Levent Sennaroglu, William H Slattery
May 30, 2006·Otolaryngology--head and Neck Surgery : Official Journal of American Academy of Otolaryngology-Head and Neck Surgery·N Wendell Todd
Jul 4, 2012·Otolaryngology--head and Neck Surgery : Official Journal of American Academy of Otolaryngology-Head and Neck Surgery·Erdem ErenHüseyin Katilmis
Jun 30, 2006·The Annals of Otology, Rhinology, and Laryngology·Ho-Ki LeeWon-Sang Lee
May 7, 2009·Neurosurgery·Pakrit JittapiromsakMark C Preul
Nov 10, 2009·The Annals of Otology, Rhinology, and Laryngology·Yoann Pons, Bertrand Lombard
Apr 14, 2016·Acta neurochirurgica·Marcos Alexandre da Franca PereiraRubens de Brito
Mar 3, 2001·Otolaryngology--head and Neck Surgery : Official Journal of American Academy of Otolaryngology-Head and Neck Surgery·Y CokkeserM Sanna
Jul 9, 2010·European Archives of Oto-rhino-laryngology : Official Journal of the European Federation of Oto-Rhino-Laryngological Societies (EUFOS) : Affiliated with the German Society for Oto-Rhino-Laryngology - Head and Neck Surgery·Ming-Ying Lan, Jiun-Yih Shiao

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