INTRODUCTION Conductive hearing loss, in the presence of a normal external ear, is usually due to an interference with the normal transmission of sound from the tympanic membrane across the ossicular chain to the oval window. If conductive hearing loss occurs in a young child, congenital middle ear pathology is the most likely cause. MATERIALS AND METHODS High resolution computed tomography o...

Malformations of the middle ear are classified as minor and major malformations. Minor malformations appear with regular external auditory canal, tympanic membrane and aerated middle ear space. The conducting hearing loss is due to fixation or interruption of the ossicular chain. The treatment is surgical, following the rules of ossiculoplasty and stapes surgery. In major malformations (congeni...

Introduction: Chronic otitis media (COM) has been broadly classified into mucosal and squamous subtypes. COM types are associated with erosion of the ossicular chain. The aim of the present study was to correlate the type of COM, the site of perforation/retraction, and the type of disease pathology with the pattern and degree of ossicular chain necrosis.   Materials and Methods: A prospecti...

OBJECTIVES The goal of this study was to make a review of the patients who underwent ossicular chain reconstruction with titanium prosthesis during an eight-year period in our Department. METHODS A retrospective study was made on the ossiculoplasty cases over a period of eight years in a Public Hospital District. The information was extracted by clinical process consultation. Between 1999 and...

introduction: the use of ossicular graft material in ossicular chain reconstruction has significantly improved hearing results hearing after tympanoplasty and tympanomastoid surgery for chronic otitis media. today, otologists have a wide array of tools from which to choose, but may find it difficult to know which middle ear implant works best.   materials and methods: a prospective study of 80 ...

Background and Objectives Stapes surgery has been widely used to improve the conductive hearing loss caused by stapedial fixation. The purpose of this study is evaluate causes fixation using audiological results 100 stapes surgeries. Subjects Method We reviewed medical records consecutive surgeries between June 2011 December 2022. A total ears from 86 patients were included patient age ranged 6...

The study of the dynamics of the human tympanic membrane is important for better understanding of the hearing mechanism of the normal and reconstructed middle ear. A middle ear implant, for instance, needs to have the same transmission properties as a normal human middle ear. The transmission properties are determined by evaluating the transfer function of the middle ear, which is determined by...

BACKGROUND Recently, a model of the ossicular chain for finite element analysis has been developed. However, the natural vibration characteristics of human ossicles have never been studied. Herein, we investigated the dynamic characteristics of the coupling of in-vivo ossicles using finite element analysis. METHODS The geometry of the ossicular chain was obtained by high-resolution computed t...

OBJECTIVE To investigate and analyze the relationship between individual ossicular erosion and air-bone gap (ABG) among patients with cholesteatoma. STUDY DESIGN Retrospective case review. SETTING Tertiary referral center. SUBJECTS AND METHODS Data from all patients undergoing an initial surgery for cholesteatoma were retrospectively reviewed to evaluate the relationships between preopera...