Fig. 4From: Endoscopic-assisted epitympanic approach: a feasible technique for cochlear implantationa Endoscopic view of the electrode insertion into the ST of the basal turn of the cochlea. b, c Endoscopic view of a fully inserted electrode into the RW sealed with piece of periosteum. d Endoscopic view of the final position of the electrode inserted through the (epitympanic) tunnelBack to article page