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DOI: 10.1055/s-0040-1701601
Using the Arcuate Eminence–Trigeminal Notch Line to Localize the Anterior Wall of the Internal Auditory Canal in a Subtemporal Approach: An Anatomical Study
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Abstract
Background This article aims to describe the regional anatomy of the anterior end of the arcuate eminence, the lateral end of the trigeminal notch, and the line connecting the two (i.e., the arcuate eminence–trigeminal notch line [ATL]) and to determine whether the ATL could be used as a landmark for localizing the internal auditory canal (IAC).
Methods Twenty sides of the middle cranial fossae were examined. The anterior end of the arcuate eminence, the lateral end of the trigeminal notch, the ATL, and other crucial structures were exposed. The relevant distance and angle of related structures in the anterior wall of the petrosal bone were measured.
Results The anterior end of the arcuate eminence and the lateral end of the trigeminal notch could be identified in all specimens. The anterior end of the arcuate eminence lay over the geniculate ganglia and the vestibule area, and could be visualized directly or determined from the intersection of the long axes of the greater superficial petrosal nerve and arcuate eminence. On the petrous ridge, the lateral end of the trigeminal notch was also the transitional point of the suprameatal tubercle and trigeminal notch. The ATL corresponded to the projection of the anterior wall of the IAC on the anterior surface of the petrous bone.
Conclusion The ATL corresponded to the projection of the anterior wall of the IAC on the anterior petrous surface and could be used as an alternative landmark for localizing the anterior wall of the IAC.
Keywords
arcuate eminence - trigeminal notch - arcuate eminence–trigeminal notch line - internal auditory canal - subtemporal approachPublikationsverlauf
Eingereicht: 19. August 2019
Angenommen: 24. Dezember 2019
Artikel online veröffentlicht:
28. Februar 2020
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References
- 1 House WF. Surgical exposure of the internal auditory canal and its contents through the middle, cranial fossa. Laryngoscope 1961; 71 (11) 1363-1385
- 2 Fische U, Rüedi L. Transtemporal surgery of the internal auditory canal. Report of 92 cases, technique, indications and results. Adv Otorhinolaryngol 1970; 17: 203-240
- 3 Garcia-Ibanez E, Garcia-Ibanez JL. Middle fossa vestibular neurectomy: a report of 373 cases. Otolaryngol Head Neck Surg 1980; 88 (04) 486-490
- 4 Kawase T, Toya S, Shiobara R, Mine T. Transpetrosal approach for aneurysms of the lower basilar artery. J Neurosurg 1985; 63 (06) 857-861
- 5 Matsunaga T, Igarashi M, Kanzaki J. Landmark structures to approach the internal auditory canal: a dimensional study related to the middle cranial fossa approach. Acta Otolaryngol Suppl 1991; 487 (487) 48-53
- 6 Catalano PJ, Eden AR. An external reference to identify the internal auditory canal in middle fossa surgery. Otolaryngol Head Neck Surg 1993; 108 (02) 111-116
- 7 Sennaroglu L, Slattery III WH. Petrous anatomy for middle fossa approach. Laryngoscope 2003; 113 (02) 332-342
- 8 Lee HK, Kim IS, Lee WS. New method of identifying the internal auditory canal as seen from the middle cranial fossa approach. Ann Otol Rhinol Laryngol 2006; 115 (06) 457-460
- 9 Cheng CM, Tang CT, Wang CH, Lin CL. Localization of the internal auditory canal by identifying the intersection of the posterior border of the trigeminal ganglion and the superior petrosal sinus in cadavers. J Clin Neurosci 2009; 16 (12) 1604-1607
- 10 Lan MY, Shiao JY. Using greater superficial petrosal nerve and geniculate ganglion as the only two landmarks for identifying internal auditory canal in middle fossa approach. Eur Arch Otorhinolaryngol 2010; 267 (12) 1867-1871
- 11 Sampath R, Glenn C, Patil S. et al. A novel method of identifying the internal acoustic canal in the middle fossa approach in a cadaveric study-the rule of 2s. J Neurol Surg B Skull Base 2012; 73 (04) 253-260
- 12 Bulsara KR, Leveque JC, Gray L, Fukushima T, Friedman AH, Villavicencio AT. Three-dimensional computed tomographic analysis of the relationship between the arcuate eminence and the superior semicircular canal. Neurosurgery 2006; 59 (01, Suppl 1): ONS7-ONS12
- 13 Kartush JM, Kemink JL, Graham MD. The arcuate eminence. Topographic orientation in middle cranial fossa surgery. Ann Otol Rhinol Laryngol 1985; 94 (1 Pt 1): 25-28
- 14 Katsuta T, Matsushima T, Fukui M, Rhoton AL. The architecture of the arcuate eminence-a microanatomical study and its application to the transpetrosal approach. Skull Base 2001; 11 (03) 165-168
- 15 Tsunoda A, Kimura Y, Sumi T, Komatsuzaki A, Sato T. The arcuate eminence is not a protrusion of the superior semi-circular canal but a trace of sulcus on the temporal lobe. J Laryngol Otol 2000; 114 (05) 339-344
- 16 Alzhrani G, Shelton C, Couldwell WT. Middle fossa approach for resection of vestibular schwannoma. Acta Neurochir (Wien) 2017; 159 (06) 1023-1026
- 17 Aziz KM, Tew Jr JM, Chicoine MR, van Loveren HR. The Kawase approach to retrosellar and upper clival basilar aneurysms. Neurosurgery 1999; 44 (06) 1225-1234
- 18 Diaz Day J. The middle fossa approach and extended middle fossa approach: technique and operative nuances. Neurosurgery 2012; 70 (2, Suppl Operative): 192-201
- 19 Samy Y, Eun-Young K, Aziz KMA, Salah H, Keller JT, Van Loveren HR. The subtemporal interdural approach to dumbbell-shaped trigeminal schwannomas: cadaveric prosection. Neurosurgery 2006; 599 (04) 270-278
- 20 Shi W, Shi JL, Xu QW, Che XM, Ju SQ, Chen J. Temporal base intradural transpetrosal approach to the petoclival region: an appraisal of anatomy, operative technique and clinical experience. Br J Neurosurg 2011; 25 (06) 714-722
- 21 Seoane E, Rhoton Jr AL. Suprameatal extension of the retrosigmoid approach: microsurgical anatomy. Neurosurgery 1999; 44 (03) 553-560