The objective of the current study was to determine the anatomical features of the auditory ossicles inhamster. Twenty temporal bones from 10 adult hamsters, weighing 275-300 g were used. After dissectingthem, the features of the ossicles were assessed with an ocular micrometer and photographed by astereomicroscope. Finally, all data were evaluated and analysed using the Sigma Statt software. T...

In this research, anatomical descriptions of the structure of the temporal bone and auditory ossicles have been performed based on dissection of ten guinea pigs. The results showed that, in guinea pig temporal bone was similar to other animals and had three parts; squamous, tympanic and petrous .The tympanic part was much better developed and consisted of oval shaped tympanic bulla with many re...

Hearing loss and tinnitus are the main symptoms of otosclerosis. Little is known about the cause of tinnitus in otosclerosis and the factors influencing the effect of surgery on tinnitus. Though by surgery, we are able to inform patient about probable hearing gain and even benefit concerning bilateral hearing, it is however difficult to predict the course of tinnitus. The principle aim of stape...

OBJECTIVES/HYPOTHESIS To evaluate the long-term (5-year) results of the shape-memory nitinol stapes piston in the surgical treatment of otosclerosis. STUDY DESIGN Retrospective case review in a tertiary referral center. METHODS The patients were adults with clinically proven otosclerosis undergoing stapedotomy. Stapedotomy and ossicular chain reconstruction using a shape-memory nitinol stap...

The effects of partial volume averaging on computed tomographic images of temporal bone structures were evaluated. The models chosen for study included a cadaver stapes, two metallic prosthetic stapes, and a formalin-fixed temporal bone. The studies measured the changes in apparent dimension and Hounsfield units with incremental filling of voxels with metallic densities, changes in the angle of...

BACKGROUND AND PURPOSE Sensorineural hearing loss (SNHL) is a rare complication of stapes surgery that may arise for many reasons. Usually, the pathogenesis of SNHL can be established by clinical and CT examinations. The purpose of this study was to evaluate the utility of MR imaging when CT findings are normal or not contributive. METHODS Eleven patients with SNHL (in some instances, associa...

Genetic predisposition of otosclerosis has long been suspected, but unclarified. Unique coexpression pattern of measles virus receptor (CD46) splicing isoforms in the human otic capsule is assumed, since otosclerosis is a measles virus-associated organ-specific disease. In order to identify CD46 involved in the pathogenesis of otosclerosis, we used representative groups of histologically diagno...