Mechanics of Total Drum Replacement Tympanoplasty Studied With Wideband Acoustic Immittance.

Objective: Poor hearing outcomes often persist following total drum replacement tympanoplasty. To understand the mechanics of the reconstructed eardrum, we measured wideband acoustic immittance and compared the mechanical characteristics of fascia-grafted ears with the normal tympanic membrane.

Study Design: Prospective comparison study.