BACKGROUND Bone conduction (BC) threshold depression is not always by means of sensory neural hearing loss and sometimes it is an artifact caused by middle ear pathologies and ossicular chain problems. In this research, the influences of ear surgeries on bone conduction were evaluated. MATERIALS AND METHODS This study was conducted as a clinical trial study. The ear surgery performed on 83 pa...

The potential risk of infection due to the biofilm formation on implant surface constitutes one of the drawbacks of hydroxyapatite ossicular chain prostheses. The current study explores the use of chitosan nanoparticles as an antimicrobial agent impregnated in hydroxyapatite to prevent pathogenic colonization and subsequent suboptimal outcomes associated with ossicular reconstruction surgeries....

The standard treatment for acquired cholesteatoma involves surgical removal of the lesion and reconstruction of the tympanic membrane. In some children, these lesions can be treated more conservatively. We conducted a retrospective study of 29 ears in 24 children who had been treated for early acquired cholesteatoma with mechanical reduction and a tympanostomy tube. Outcomes measures included h...

HYPOTHESIS It was hypothesized that the differences in the bioacoustic performance of ossicular replacement prosthesis designs, and insertion positions, could be quantified using finite element analysis. BACKGROUND Many designs of prosthesis are available for middle ear surgery. The materials used, and the shape of the implants, differ widely. Advances in computer simulation technologies offe...

This study was conducted to find out the status of the ossicles in cases of chronic suppurative otitis media (CSOM). One hundred and fifty cases of CSOM, who underwent surgery, were included and their intra-operative ossicular chain findings noted. Ossicular erosion was found to be much more common in unsafe CSOM than in safe CSOM. Malleus was found to be the most resistant ossicle to erosion w...

OBJECTIVES To report the rare case of a patient with complete incus dislocation after trauma showing normal hearing. METHODOLOGY Physical examination, audiometry, CT of temporal bone, and detection during operation. RESULTS The incus had become remotely located in the mastoid cavity, but the patient showed normal hearing because fibrous connections had preserved bony continuity. CONCLUSIO...

Otologic injury associated with fatal and nonfatal lightning strikes has been sporadically reported in the literature. The most common acoustic insult is a conductive hearing loss secondary to rupture of the tympanic membrane. Although conjecture has been made of the theoretic possibility of ossicular injury from lightning strike, to our knowledge, none has been demonstrated intraoperatively or...

SUMMARY A subset of patients presents with unilateral conductive hearing loss, a normal pinna or grade I microtia, and mild external auditory canal stenosis. The physical findings of microtia and a small external canal are commonly absent or subtle in this group of patients, who are being commonly referred for imaging to evaluate isolated conductive hearing loss. We present a case series of pat...

INTRODUCTION Different types of titanium prostheses are used for different types of ossicular chain reconstruction (OCR). However, various ossicular chain problems require different types of reconstruction (incus or prosthesis). Recently, Vincent et al. published a new type of ossiculoplasty with a malleus replacement prosthesis (MRP). The details of this new prosthesis are described in their a...