Foramen Stylomastoideum’un Kesin Konumu ve Fasiyal Sinir Bloğu için Klinik Önemi

Yıl 2022, Cilt: 4 Sayı: 3, 355 - 360, 22.09.2022

Serdar Babacan , Rohat Bayat , Evren Büyükfırat , Mustafa Deniz

https://doi.org/10.37990/medr.1102477

Cited By: 1

Öz

Amaç: Çalışmanın amacı, kişinin kendi kafatasının morfometrik özelliklerinden yola çıkarak foramen stylomastoideum’un kesin lokalizasyonunu belirlemek için lineer regresyon formülleri geliştirmektir.
Materyal ve Metot: Çalışma, 22 foramen stylomastoideum (11 kafatası) üzerinde gerçekleştirildi. Foramen stylomastoideum için belirlenen 10 parametre kafa tabanından çekilen fotoğraflarda, kafatasının morfometrik özellikleri için belirlenen 17 parametre ise Image J ölçümü kullanılarak ön, yan ve arka plandan çekilen fotoğraflarda ölçüldü. Ölçümlerden elde edilen veriler istatistik yazılımı SPSS 20.0 ile değerlendirildi.
Bulgular: Foramen stylomastoideum’un morfometrik ve topografik özelliklerini belirlemek için; P1 (Foramen stylomastoideum ile arcus zygomaticus kökü arası mesafe)=18,758+(0,472xP12)-(2,092xP16)+(0,831xP17)–(0,390xP18)–(0,101xP20); Düzeltilmiş R2=0.865, Tahminin Standart Hatası=1.389 şeklinde denklemler geliştirilmiştir.
Sonuç: Ortalama değerler, foramen stylomastoideum ve onu çevreleyen anatomik yapılar arasındaki topografik ilişkinin belirlenmesinde yanıltıcı bilgi verebilir. Kişinin kendi kafatasının morfometrik özelliklerini dikkate alarak, foramen stylomastoideum’un kesin konumunu ve çevredeki diğer anatomik yapılar arasındaki doğru mesafeleri belirleyecek regresyon formülleri geliştirdik.

The Precise Location of the Stylomastoid Foramen and Clinical Implication for Facial Nerve Block

Öz

Aim: We aimed to develop linear regression formulas for determining the precise localization of the stylomastoid foramen on the base of the morphometric features of the person’s own skull.
Material and Method: The study was conducted on 22 stylomastoid foramina (11 skulls). The 10 parameters determined for the stylomastoid foramen were measured on the photographs taken from the skull base and the 17 parameters determined for the morphometric features of the skull were measured on the photographs taken from the anterior plane, lateral plane, and posterior plan using Image J measurement software. The data obtained were evaluated with SPSS 20.0 statistical software.
Results: To determine the morphometric and topographic features of the stylomastoid foramen the equations have been developed such as; P1 (The distance between stylomastoid foramen and root of the zygomatic arch)=18.758+(0.472xP12)-(2.092x P16)+(0.831xP17)–(0.390xP18)–(0.101x P20); Adjusted R2=0.865, Standard Error of the Estimation=1.389.
Conclusion: Mean values can give misleading information in determining the topographical relationship between the stylomastoid foramen and the surrounding anatomical structures. We have developed regression formulas that will estimate the accurate location of the stylomastoid foramen and the accurate distances between other surrounding anatomical structures, taking into account the morphometric characteristics of the person’s own skull.

Anahtar Kelimeler

Facial nerve, Facial nerve block, Stylomastoid foramen

Kaynakça

• 1. Ghosh SK, Narayan RK. Variations in the morphology of stylomastoid foramen: a possible solution to the conundrum of unexplained cases of Bell’s palsy. Folia Morphol 2021;80(1):97-105.
• 2. Ho ML, Juliano A, Eisenberg RL, Moonis G, Anatomy and pathology of the facial nerve. Am J Roentgenol 2015;204(6): 612–W619, doi: 10.2214/AJR.14.13444, indexed in Pubmed: 26001250.
• 3. Swetaa A, Mohanraj KG, Morphometric study of petrosquamous part of the temporal bone with reference to stylomastoid foramen. Drug Invention Today 2019;12(10):2137-2139.
• 4. Jai Rexlin PE, Sangeetha S, Premavathy D. Morphometry of stylomastoid foramen and its clinical applications. Drug Invention Today 2019;11(10):2593-2596.
• 5. Seneviratne SO, Patel BC. Facial Nerve Anatomy and Clinical Applications. [Updated 2021 Jul 31]. In: StatPearls [Internet]. Treasure Island (FL): StatPearls Publishing; 2022 Jan-. Available from: https://www.ncbi.nlm.nih.gov/books/NBK554569/
• 6. Takezawa K, Townsend G, Ghabriel M. The facial nerve: anatomy and associated disorders for oral health professionals. Odonthology 2018;106:103-116.
• 7. Warwick R, Williams PL. Gray’s anatomy. 35th ed. Edinburgh: Longman Group Ltd 1973.
• 8. Pascual P., Moralinno E, Vasquez T, et al. Extracranial Course of the FacialNerve Revisited. The Anatomical Record 2019;302:599-608.
• 9. Sharma N, Varshney R. Morphometry of stylomastoid foramen and its clinical application in facial nerve block. Saudi Journal of Anesthesia 2015;9(1); 60-63. 10. Schimek F, Fahle M. Techniques of facial nerve block. Br J Ophthalmol 2015;79:166-173.
• 11. Warner LO, Martino JD, Davidson PJ. Pulmonary edema after Nadbath and retrobulbar blocks: A possible explanation. Anesth Analg 1995;80:643.
• 12. Schneider CA, Rasband WS, Eliceiri KW. NIH Image to ImageJ: 25 years of image analysis. Nature Methods 2012;9:671-675.
• 13. Lindquist. T,D., Kopietz, L.A., Spigelman, A.V., Nichols, B.D., Lindstrom, R.L., 1988. Complications of Nadbath facial nerve block and a review of the literature. Ophthalmic Surg 19(4):271-273.
• 14. Moreu S, Bourdon N, Salame E, et al. Facial Nerve: Vascular Related Anatomy at The Stylomastoıd Foramen. Ann Owl Rhinol Lury 2000;109: 849-852.
• 15. Lubszczyk M, Luczynska-Sopel A, Polaczkiewicz D. Facial nerve palsy and laryngospasm as a complication of local anaesthesia during adenotonsillectomy. Auris Nasus Larynx 2018;45(5):1113-1115.
• 16. Greyling LM, Glanvill R, Boon JM, et al. Bony landmarks as an aid for intraoperative facial nerve identification. Clin Anat 2007;20:739-744.
• 17. Kutoğlu T, Çetkin M, Turan Ö, et al. Morphometric and Topographic Features of Stylomastoid Foramen and its Clinical Significance in Facial Nerve Block. J Neurol Surg B Skull Base 2021;82(S 03):e271-e277.