Cochlear Duct Length: Rethinking Its Role in Auditory Outcomes.

Objective: To assess the relation between cochlear duct length (CDL) and audiological outcome after cochlear implant surgery in prelingually deafened children.

Methods: In a prospective cohort study, 36 prelingually deaf children underwent cochlear implantation at All India Institute of Medical Sciences, Jodhpur. Preoperative high-resolution computed tomography (HRCT) and high-resolution T2 weighted sequences magnetic resonance imaging (MRI) of temporal bones were used to calculate CDL.