Different techniques for identification of facial nerve during superficial parotidectomy

Abstract

Parotidectomy is a common surgical procedure for the treatment of benign and malignant lesions of the parotid gland. Identification of the facial nerve trunk is essential during surgery of the parotid gland to avoid facial nerve injury. A comprehensive knowledge of its anatomy and meticulous dissection are the keys for the identification of the facial nerve trunk and its branches. To compare between the traditional antegrade parotidectomy and retrograde in identification of facial nerve during superficial parotidectomy, determination the best anatomical landmark, the time of exploration of facial nerve, outcomes, facial nerve complication, duration of surgery, patient satisfaction as well as other complications. Twelve patients who were diagnosed with having parotid gland neoplasms, and had undergone superficial Parotidectomy were recruited and assessed for eligibility at General Surgery Department, Beni-Suef University Hospital. Patients were divided according to the surgical technique into two equal groups, group A (the antegrade dissection group), and group B (the retrograde dissection group), follow-up was 6 months. There was no statistically significant differences between both groups regarding pain, paresthesia and pathology postoperation (P value>0.05). Longer mean operation time was observed in the antegrade dissection group in comparison with the retrograde dissection group (2.06±0.75 and 1.61±0.31 h, respectively), which was statistically insignificant (P value>0.05). There was a statistically significant increase in facial nerve injury among patients in the antegrade dissection group in comparison with the retrograde dissection group (P value=0.046). There was no statistically significant difference between techniques regarding hospital stay duration and complications three months postoperation (P value>0.05). Retrograde facial nerve dissection technique is better than the classical antegrade technique in the superficial parotidectomy within this study.