Complications
In this study, there were 4 patients with recurrence and 3 patients with recurrence. No complications related to facial nerve occurred in all patients. Among 36 patients in the endoscopic technique group, a study by Arindam et al. found that only one patient had residual lesions. In another study, Marchioni et al. found that 0.4% of patients had bone dislocation and 0.6% had persistent tympanic membrane perforation.9,10 Cochlear/auricle cartilage displacement and subsequent retraction pocket formation are other important complications. Minimization of other important complications can be controlled by reducing excessive bone removal. Cholesteatoma can be removed to ensure easier and more stable reconstruction when it extends below the front buttress.
In our study, for similar diseases, the value of MESVI in the endoscopic group was higher, which caused the bone defect to be lesser; therefore, we concluded that it would result in fewer cartilage displacement and retraction pocket formation. Because we followed up the patients for only 1 year, there is no statistical difference between the two groups.