Table 5 The incidence of complications in between the two studied groups. No significant difference was found between the groups. However, the complications in the conventional group were graver than those in the endoscopic group. On the one hand, a case of TM perforation and another of facial nerve paresis occurred in the posterior tympanotomy group. On the other hand, a case of PCW perforation, another case of chorda tympani injury, and a third case of TMF perforation occurred in the endoscopic group

From: Endoscopic-assisted epitympanic approach: a feasible technique for cochlear implantation