Endoscopic Anatomy of the Inferior Orbital Fissure-Müller’s Muscle Structural Unit at the Medial Sellar Orbital Junction and its surgical relevance
DOI:
https://doi.org/10.31053/1853.0605.v74.n4.17043Keywords:
skull base, anatomy, endoscopy, orbitAbstract
Background: Diseases of the orbit represent a surgical challenge, particularly those compromising the orbital apex. Optimal surgical access should provide the best possible exposure, allowing to identify certain key anatomical structures, called landmarks. Objective: Describe the endoscopic anatomy of the structural unit formed by the Inferior Orbital Fissure (IOF) and the Müller’s muscle (MM) at the orbital apex (OA), thus generating a new endoscopic anatomical landmark. Materials and methods: A bone-descriptive analysis of the IOF in dry craniums, was followed by dissection and endoscopic study of six heads (twelve sides), colored and fixed in formaldehyde. In ten dry craniums (twenty sides), distances and angles of OA foramina were measured (optic foramen [OF] and foramen rotundum [FR]). Statistical analysis was performed with SPSS 17.0 statistical software (SPSS, Inc. Chicago, IL). Results: The structural unit IOF-MM was identified in all endoscopic dissections, verifying its intimate relationship with the OA. From the morpho-metric standpoint, OF and FR were found at an average distance of 65.19 mm and 60.16 mm, respectively. The average angle of the OF was 13.32 degrees, whereas the one for FR was 19.31 degrees. We found a significant correlation between OF and FR only on the left side (left hemi-crane) (Kendall Tau b 0.69, p=0.006). There were no anatomical or morphological differences between both sides. Conclusion: The unit IOF-MM is a constant anatomical landmark, useful and safe under endoscopic technique, which allows the recognition of the OA and its contiguous areas.
Downloads
References
1. Abuzayed B, Tanriover N, Gazioglu N, Eraslan BS, Akar Z. Endoscopic endonasal approach to the orbital apex and medial orbital wall: anatomic study and clinical applications. J Craniofac Surg 2009; 20: 1594–1600.
2. Tsirbas A, Kazim M, Close L. Endoscopic approach to orbital apex lesions. Ophthal Plast Reconstr Surg 2005; 21: 271–275.
3. Tepedino MS, Pinheiro-Neto CD, Bezerra TF, Gardner PA, Snyderman CH, Voegels RL. Endonasal identification of the orbital apex. Laryngoscope. 2016 Jan; 126(1):33-8.
4. Rangel-Castilla L, Russin JJ, Spetzler RF. Surgical management of skull base tumors. Rep Pract Oncol Radiother. 2016 Jul-Aug;21(4):325-35.
5. Kawahara N, Sasaki T, Asakage T, Nakao K, Sugasawa M, Asato H, Koshima I, Saito N. Long-term outcome following radical temporal bone resection for lateral skull base malignancies: a neurosurgical perspective. J Neurosurg. 2008 Mar;108(3):501-10.
6. van Furth WR, Agur AM, Woolridge N, Cusimano MD. The orbitozygomatic approach. Neurosurgery. 2006 Feb;58(1 Suppl).
7. Lemole GM Jr, Henn JS, Zabramski JM, Spetzler RF. Modifications to the orbitozygomatic approach. Technical note. J Neurosurg. 2003 Nov;99(5):924-30. Review.
8. Boari N, Spina A, Giudice L, Gorgoni F, Bailo M, Mortini P. Fronto-orbitozygomatic approach: functional and cosmetic outcomes in a series of 169 patients. J Neurosurg. 2017 Feb 3:1-9.
9. Dziedzic TA, Anand VK, Schwartz TH. Endoscopic endonasal approach to the lateral orbital apex: case report. J Neurosurg Pediatr. 2015 Sep;16(3):305-8.
10. Alimohamadi M, Hajiabadi M, Gerganov V, Fahlbusch R, Samii M. Combined endonasal and sublabial endoscopic transmaxillary approach to the pterygopalatine fossa and orbital apex. Acta Neurochir (Wien). 2015 Jun;157(6):919-29; discussion 929. Erratum in: Acta Neurochir (Wien). 2016 Jun;158(6):1229.
11. Elhadi AM, Almefty KK, Mendes GA, Kalani MY, Nakaji P, Dru A, Preul MC, Little AS. Comparison of surgical freedom and area of exposure in three endoscopic transmaxillary approaches to the anterolateral cranial base. J Neurol Surg B Skull Base. 2014 Oct;75(5):346-53.
12. Karaki M, Kobayashi R, Mori N. Removal of an orbital apex hemangioma using an endoscopic transethmoidal approach: technical note. Neurosurgery. 2006 Jul;59(1 Suppl 1): ONSE159-60; discussion ONSE159-60.
13. Elhadi AM, Zaidi HA, Yagmurlu K, Ahmed S, Rhoton AL Jr, Nakaji P, Preul MC, Little AS. Infraorbital nerve: a surgically relevant landmark for the pterygopalatine fossa, cavernous sinus, and anterolateral skull base in endoscopic transmaxillary approaches. J Neurosurg. 2016 Dec;125(6):1460-1468.
14. De Battista JC, Zimmer LA, Theodosopoulos PV, Froelich SC, Keller JT. Anatomy of the inferior orbital fissure: implications for endoscopic cranial base surgery. J Neurol Surg B Skull Base. 2012 Apr;73(2):132-8. doi:10.1055/s-0032-1301398. PubMed PMID: 23542710; PubMed Central PMCID: PMC3424630.
15: De Battista JC, Zimmer LA, Rodríguez-Vázquez JF, Froelich SC, Theodosopoulos PV, DePowell JJ, Keller JT. Muller's muscle, no longer vestigial in endoscopic surgery. World Neurosurg. 2011 Sep-Oct;76(3-4):342-6.
16: Cebula H, Lahlou A, De Battista JC, Debry C, Froelich S. [Endoscopic approaches to the orbit]. Neurochirurgie. 2010 Apr-Jun;56(2-3):230-5.
17. Dallan I, Di Somma A, Prats-Galino A, Solari D, Alobid I, Turri-Zanoni M, Fiacchini G, Castelnuovo P, Catapano G, de Notaris M. Endoscopic transorbital route to the cavernous sinus through the meningo-orbital band: a descriptive anatomical study. J Neurosurg. 2016 Nov 18:1-8.
18. Ulutas M, Boyac? S, Akak?n A, K?l?ç T, Aksoy K. Surgical anatomy of the cavernous sinus, superior orbital fissure, and orbital apex via a lateral orbitotomy approach: a cadaveric anatomical study. Acta Neurochir (Wien). 2016 Nov;158(11):2135-2148.
19. Natori Y, Rhoton AL Jr. Microsurgical anatomy of the superior orbital fissure. Neurosurgery. 1995 Apr;36(4):762-75.
20. Natori Y, Rhoton AL Jr. Transcranial approach to the orbit: microsurgical anatomy. J Neurosurg. 1994 Jul;81(1):78-86.
21. Fisch U, Fagan P, Valavanis A. The infratemporal fossa approach for the lateral skull base. (1984) Otolaryngol ClinN Am17(3):513–552.
22. Fisch U (1984) Infratemporal fossa approach for lesions in the temporal bone and base of the skull. Adv Otorhinolaryngol 34: 254–266.
23. Hitotsumatsu T, Rhoton AL Jr Unilateral upper and lower subtotalmaxillectomy approaches to the cranial base:microsurgical anatomy. (2000) Neurosurgery 46(6):1416–52.
24. Niho S (1961) Decompression of the optic canal by the transethmoidal route. Am J Ophthalmol 51:659–665.
25. Zhang M, Garvis W, Linder T, Fisch U (1998) Update on the infratemporal fossa.
26. Aust MR, McCaffrey TV, Atkinson J: Transnasal endoscopic approach to the sella turcica. Am J Rhinol 12:283–287,1998.
27. Kassam AB, Gardner PA, Snyderman CH, Carrau RL, Mintz AH, Prevedello DM: Expanded endonasal approach, a fully endoscopic transnasal approach for the resection of midline suprasellar craniopharyngiomas: a new classification based on the infundibulum. J Neurosurg 108:715–728, 2008
28. Kassam AB, Prevedello DM, Carrau RL, Snyderman CH, Thomas A, Gardner P, et al: Endoscopic endonasal skull base surgery: analysis of complications in the authors’ initial 800 patients. J Neurosurg 114:1544–1568, 2011.
29. Alfieri A, Jho HD, Schettino R, Tschabitscher M (2003) Endoscopic endonasal approach to the pterygopalatine fossa: anatomic study. Neurosurgery 52(2):374–78.
30. Cavallo LM, Messina A, Gardner P, Esposito F, Kassam AB, Cappabianca P, de Divitiis E, Tschabitscher M (2005) Extended endoscopic endonasal approach to the pterygopalatine fossa: anatomical study and clinical considerations. Neurosurg Focus 19(1): E5.
31. Solari D, Magro F, Cappabianca P, Cavallo LM, Samii A, Esposito F, PaternòV,DeDivitiis E, SamiiM (2007) Anatomical study of the pterygopalatine fossa using an endoscopic endonasal approach: spatial relations and distances between surgical landmarks. J Neurosurg 106(1):157–63.
Downloads
Additional Files
Published
Issue
Section
License
Copyright (c) 2017 Universidad Nacional de Córdoba
This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.
The generation of derivative works is allowed as long as it is not done for commercial purposes. The original work may not be used for commercial purposes.