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Facial Canal Defect During Mastoidectomy for Chronic Suppurative Otitis Media

Iraqi Postgraduate Medical Journal, 2021, Volume 20, Issue 4, Pages 227-331
10.52573/ipmj.1970.170476

Abstract

ABSTRACT:
BACKGROUND:
The facial nerve is characterized by the long bony canal that makes it vulnerable to injury during otologic surgery. Facial canal defect could be found as an anatomic variant or due to longstanding inflammation that causes bone erosion.
AIMS OF THE STUDY:
Determination of the incidence and location of facial canal defect and identification  of association between facial canal defect  and other intraoperative pathological findings.
PATIENTS AND METHODS:
A case series study of eighty-four patients with chronic suppurative otitis media who underwent mastoidectomy  in Al-Yarmouk Teaching Hospital through a period from October 2017 till October 2018. Data were collected regarding the intraoperative finding of facial canal defect, its location and associated pathological findings which include lateral semicircular canal erosion, dural exposure and ossicular erosion.
RESULTS:
This study included (38) males and (46) females, their ages ranged from five to fifty-eight years. The incidence of facial canal defects was (20.2%). The tympanic segment was predominantly involved (82.4%).There was a statistically significant correlation between facial canal defect and lateral semicircular canal erosion (p<0.006).
CONCLUSION:   
The incidence of facial canal defect was 20.2%, mostly located in the tympanic segment. The presence of lateral semicircular canal erosion was significantly correlated with facial canal defects.
 
 
Keywords:

  1. Bradley W Kesser, Anatomy of  the facial nerve and associated structures. William H. Slattery III. Babas Azizzadeh, The Facial Nerve.2014:chapter 1 :1-11.
  2. Abdulkader Bucak, Sahin Ulu. Facial Canal Dehiscence and Tympanomastoid surgery. Journal of international advanced otology. 2013;9: 319-26.
  3. Francisco Arias-Marzan,Gemma de Lucas.Facial canal dehiscence in patients with cholesteatoma. European Archives of Oto-Rhino-Laryngology 2019.https://doi.org/10.1007/s00405-019-05416-6
  4. Tony Wright, Peter Valentine, the anatomy and embryology of the external and middle ear. Michael Gleeson, Scott Brown's Otolaryngology Head and Neck Surgery.8th edition 2018:2 ch.46:525-543

 

  1. Christopher Skulbeck,Susan Standing and Micheal Gleeson,The facial nerve and its non-neoplastic disorders.Micheal J. Gleeson, Scott Brown's Otolaryngology Head and Neck Surgery.8th edition.2018: vol. 2;ch. 112:1381-409.
  2. Aina Julianna Gulya, neuroanatomy. Gulya and Schuknecht's anatomy of the temporal bone with surgical implications.3rd edition.2007:6:171-96.
  3. Cem Ozbek,Evrim Tuna and Onur Ciftci. Incidence of fallopian canal dehiscence at the surgery for chronic otitis media. European Archives of Otorhinolaryngology. 2009, 266:357-62.
  4. Kai Chieh Chan, Pa-Chun Wang, Yen-An Chen. Facial Nerve Dehiscence at Mastoidectomy for Cholesteatoma. The Journal of International Advanced otology. 2011;7:311-16.
  5. Trinidade A. and Yung, M.W. the intraoperative incidence of fallopian canal dehiscence during surgery for cholesteatoma : a prospective case-control study and review of the literature. Clinical Otolaryngology.2014;39:138-44.

10. Nomiya S, Kariya S.,Facial nerve canal dehiscence in chronic otitis media without cholesteatoma. European Archives  Otorhinolaryngology. 2014;271:455-58.

11. Giuseppe Magliulo, MD, Maria Giovanna. Facial Nerve Dehiscence and Cholesteatoma. Annals of Otology,Rhinology and Laryngology.2011;120:261-67.

12. Yilidrim A. Bayazit, Enver Ozer and Muzaffer Kanlikama. Gross dehiscence of the bone covering the facial nerve in the light of ontological surgery. The Journal of  Laryngology and Otology. 2002;116:800-3.

13. Muamer Melih Sahin,MD,Melih Cayonu,MD.Cautionary findings for the presence of facial canal dehiscence during cholesteatoma surgery. Ear,Nose and Throat Journal 2019.

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