Point of facial nerve vulnerability during mastoidectomy among Indian patients

Authors

  • Rajarshi Datta Assistant Professor, Department of Anatomy, Jagannath Gupta Institute of Medical Sciences and Hospital, Kolkata, West Bengal, India.
  • Sayantani Majumdar Associate Professor, Department of Anatomy, Jagannath Gupta Institute of Medical Sciences and Hospital, Kolkata, West Bengal, India.
  • Arpita Sarkar Assistant Professor, Department of Anatomy, Jagannath Gupta Institute of Medical Sciences and Hospital, Kolkata, West Bengal, India.
  • Satabdi Sarkar Associate Professor, Department of Anatomy, AIIMS, Kalyani, West Bengal, India.

Keywords:

Mastoidectomy, Facial Nerve Injury, Second Genu, Indian Population

Abstract

Background: The petrous part of temporal bone houses the major part of intracranial courses of facial nerve. The nerve might be injured during surgery involving the mastoid and tympanic region. The damage may cause facial asymmetry and impairment of facial muscle function. It may ruin a patient's face, affecting their mental and social health. This research seeks to identify the anatomical site most susceptible for facial nerve injury during surgical treatment of mastoid and tympanic cavity.

Methods: A retrospective analysis of 198 mastoidectomies conducted by 10 surgeons was done. The number of mastoidectomies by each surgeon, the location of the injury, the grade of the nerve injury, and the number of recoveries were recorded. Statistical analysis was performed on the data obtained.

Results: Nine facial nerve injuries were reported among the 198 cases analyzed. The second genu was the most vulnerable site of nerve injury in our study. A Grade 3 injury was most found in the case of mastoidectomies. More than 70% of the cases recovered from the ‘facial nerve’ injury.

Conclusion: Injury of the nerve during mastoidectomy is the major complication faced by an otolaryngologist. Also, the injury paralyses the facial muscle, having a significant impact on the patient’s life. The injury can be best avoided by the thorough study of the anatomy of the nerve. In our study, it is found that the second genu is the prominent site of the injury. The otolaryngologist should be careful while performing the mastoidectomies and monitor the facial nerve simultaneously.

Published

2024-03-31

How to Cite

Datta, R. ., Majumdar, S. ., Sarkar, A. ., & Sarkar, S. . (2024). Point of facial nerve vulnerability during mastoidectomy among Indian patients. Student’s Journal of Health Research Africa, 5(3). Retrieved from https://sjhresearchafrica.org/index.php/public-html/article/view/1039

Issue

Section

Section of Non-communicable Diseases Research