title: Relevance of Pure Tone Average (PTA) as a Predictor for Incus Erosion.
abstract: Between 40 and 90% of tympanoplasty require middle ear ossicular chain reconstruction. Ossicular discontinuity usually cannot be determined unless an operation is performed. The main objective was to determine the predictive value of pre-operative audiological factors in diagnosing incudal necrosis in patients with tubotympanic chronic suppurative otitis media. A retrospective clinical study of 20 patients who underwent ossicular reconstruction with autologous incus over a period of two years was performed. The mean pre-operative pure tone average was 49.18 dB HL.The minimum value being 45 dB HL and the maximum value being 64 dB HL.
authors.affiliation: Department of ENT, Sri Ramachandra University, Porur, Chennai, 600116 India.
authors.forename: Sanjeev
authors.initials: S
authors.lastname: Mohanty
authors.forename: M
authors.initials: M
authors.lastname: Gopinath
authors.forename: Mukundan
authors.initials: M
authors.lastname: Subramanian
authors.forename: Nisha
authors.initials: N
authors.lastname: Vijayan
keywords: Autograft; Incus erosion; Ossiculoplasty; PTA