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Otosclerosis is a condition of the middle ear where portions of the dense enchondral layer of the bony labyrinth remodel into one or more lesions of irregularly-laid spongy bone. As the lesions reach the stapes the bone is resorbed , then hardened ( sclerotized ), which limits its movement and results in hearing loss , tinnitus , vertigo or a ...
Stapedectomy is a surgical procedure in which the stapes bone is removed from the middle ear and replaced with a prosthesis.. If the stapes footplate is fixed in position, rather than being normally mobile, the result is a conductive hearing loss.
Whilst hearing loss is a common symptom in many diseases of the ear, for example in otosclerosis (abnormal bone growth in the ear), [3] the white, chalky patches on the tympanic membrane are fairly characteristic of tympanosclerosis. Cholesteatoma is similar in appearance but the whiteness is behind the tympanic membrane, rather than inside.
Otosclerosis is a disease that results in fixation of the stapes, which conducts sound to the inner ear. Microscopic stapedectomy, requires some removal of bone, and in some instances, an incision is made to facilitate access. The endoscope's ability to visualize around corners allows for better visualization of the stapes without needing any ...
Otosclerosis, a disease of the ears. Primary lateral sclerosis , progressive muscle weakness in the voluntary muscles. Primary sclerosing cholangitis , a hardening of the bile duct by scarring and repeated inflammation.
CT scan is useful in cases of congenital conductive hearing loss, chronic suppurative otitis media or cholesteatoma, ossicular damage or discontinuity, otosclerosis and third window dehiscence. Specific MRI scans can be used to identify cholesteatoma.
Otology also includes surgical treatment of conductive hearing loss, such as stapedectomy surgery for otosclerosis. Neurotology (a related field of medicine and subspecialty of otolaryngology) is the study of diseases of the inner ear, which can lead to hearing and balance disorders.
Treatment for cochlear hydrops is the same as for Meniere's disease. Currently, no cure exists for either. [11] If a patient has undergone sudden sensorineural hearing loss, a course of steroids is often prescribed in an attempt to recover the hearing. Steroids may be injected directly through the eardrum. [12]