Ossicular chain reconstruction (also called middle ear bone surgery) can improve conductive hearing. It can be done to replace a damaged malleus or incus bone. During surgery, you will be given local anesthesia with sedation. Or you may receive general anesthesia. Middle ear bone surgery takes about 1 to 3 hours.
What is ossifying fibroma? ossifying fibroma treatment.


How is ossicular chain reconstruction done?

The Procedure The eardrum, or tympanic membrane, is carefully elevated from the surrounding canal, and the ossicles are carefully examined and palpated. If the ossicles appear to be in good condition, one of the ossicles be removed, sculpted into proper shape, and repositioned to reestablish an intact ossicular chain.

What is Ossiculoplasty surgery?

Ossiculoplasty. An ossiculoplasty is an operation to correct any problems with the tiny bones that are responsible for transmitting sound from the eardrum to the inner ear.

What is a Stapedectomy surgery?

A stapedectomy (say “stay-puh-DEK-tuh-mee”) is surgery to remove a small bone, called the stapes, from the middle ear. The middle ear contains three bones: the stapes (say “STAY-peez”), the incus, and the malleus. These bones help with hearing.

What is OCR ear surgery?

“Tympanoplasty” is the medical term for repairing ear drums. It is often combined with 1) repair of the hearing bones (“Ossicular Chain Reconstruction” = OCR) and cleaning of the mastoid (“Mastoidectomy”). he following is a pictorial review of some surgical techniques of Tympanoplasty.

Where is the ossicular chain located?

The ossicles are situated in the middle ear and suspended by ligaments. They articulate with each other through synovial joints to form a chain across the length of the middle ear from the tympanic membrane (laterally) to the oval window (medially).

Can you damage the malleus?

Hearing loss from an isolated malleus fracture is an uncommon clinical entity. While malleus fractures can result from direct trauma, they are most often reported as a result of implosive forces from digital manipulation of the ear canal, penetrating trauma, or external blunt trauma [1].

How long does a Ossiculoplasty take?

The surgery can take one to two hours. The operation will sometimes require a small cut just in front of the ear or behind the ear or sometimes no cut at all. Your surgeon will discuss with you how your operation will be done.

What is the ossicular chain?

The ossicular chain consists of three bones; the malleus, incus, and stapes joined by two synovial joints, the incudomallear and incudostapedial joints.[1] Together, they comprise the primary sound-conduction apparatus to transmit vibratory stimulus from the tympanic membrane to the oval window.

How effective is ossicular reconstruction in closing ABGS and restoring hearing?

In a study conducted by Mahanty [13], hearing results were measured by PTA-air–bone–gap (PTA-ABG). Thus they concluded 60% success rate (< 20 db ABG), for ossiculoplasty using cartilage and 56.25% for PORP.

What is otosclerosis surgery?

Surgery — Surgery can be a highly effective treatment for otosclerosis. The procedure is called a “stapedectomy” (or “stapedotomy”). The procedure is intended to “bypass” the fixed part of the stapes bone by removing it, and replacing it with a new, mobile, prosthetic bone.

Is stapedectomy major surgery?

How many years does a stapedectomy last?

The initial improvement in hearing following stapedectomy usually deteriorates with the passage of time. We studied the long-term results of stapedectomies performed on 42 patients (49 ears) between 1959 and 1969 who had a minimum follow-up of 18 years.

What is mastoidectomy tympanoplasty?

Tympanoplasty with mastoidectomy refers to surgery performed to correct middle ear problems in both the eardrum (tympanic membrane) and the small bones of the middle ear (mastoid bone) when medical treatment is not effective.

Why does Carhart's Notch occur?

The peak occurs around 1200 Hz. This vibration is caused by hinging movement of ossicles due to air conduction stimulus at the level of umbo of ear drum. … Decreased mobility of ossicles in this mode caused due to otosclerosis is considered to be the cause for carhart’s notch.

What is conductive hearing?

About Conductive Hearing Loss A conductive hearing loss happens when sounds cannot get through the outer and middle ear. It may be hard to hear soft sounds. Louder sounds may be muffled. Medicine or surgery can often fix this type of hearing loss.

What kind of energy does the ossicular chain transmit?

The mechanical energy transmitted through the three bones (ossicular chain) causes the in-and-out movement of the base of the stirrup (stapes footplate) in patterns that match those of the incoming sound waves. The stapes footplate fits into the oval window, the beginning point of the inner ear.

What is the major role of the basilar membrane?

What is the major role of the basilar membrane? The basilar membrane supports the spiral organ, and vibrations are transmitted through the basilar membrane to the hair cells of the spiral organ.

Can you hear without ear bones?

These three bones, often referred to as the ossicles, serve a crucial role in moving sound waves from your outer ear to your inner ear. Without your ossicles, you wouldn’t be able to hear as you do now. All sound starts as sound waves. When a sound wave reaches your ear, it pushes up against the eardrum as vibrations.

What is Ossicular disarticulation?

Ossicular discontinuity (OD) is a separation of the middle ear ossicles that can occur at one of the joints or within a bone (e.g. fracture).

How many bones does malleus have?

The malleus (“hammer”), incus (“anvil”), and stapes (“stirrup”) are the three bones, also known as ossicles, of the inner ear. The malleus is the largest and the outermost of the bones, which are part of the auditory system. Together, the three bones make up an area no larger than the seed of an orange.

How is cochlea damaged?

Loud noise is particularly harmful to the inner ear (cochlea). A one-time exposure to extreme loud sound or listening to loud sounds for a long time can cause hearing loss. Loud noise can damage cells and membranes in the cochlea.

How is otosclerosis diagnosed?

Otosclerosis is diagnosed using tests including: hearing tests – a person with otosclerosis typically has a hearing loss that affects all frequencies (pitches). The hearing loss may be conductive or mixed in nature. A conductive hearing loss is caused by a problem in the middle or outer parts of the ear.

Can middle ear be repaired?

In most cases, eardrum repairs are very successful. More than 90 percent of patients recover from tympanoplasty with no complications. The outcome of the surgery may not be as good if the bones of your middle ear need to be repaired in addition to your eardrum.

What is the difference between Myringoplasty and tympanoplasty?

Myringoplasty is an operation that is performed to close the hole (perforation) in the eardrum. A tympanoplasty helps to address any damage or scarring around the bones for hearing. Sometimes both these procedures are performed at the same time.

What is the ossicular chain made up of?

The ossicular chain is a middle ear structure consisting of the small incus, malleus and stapes bones, which transmit tympanic membrane vibrations caused by sound to the inner ear.

What is ossicular chain disruption?

Ossicular chain discontinuity (also called ossicular chain dislocation) is an abnormal separation of the middle ear bones. Middle ear infections, injury or malformation of these bones can cause this condition. This condition leads to conductive hearing loss as sound cannot be transmitted properly.

What is ossicular chain dislocation?

Ossicular chain dislocation is a separation of the middle ear bones. It results in a hearing loss due to sound not being transmitted properly (conductive hearing loss). Ossicular chain dislocation is also called ossicular chain discontinuity.

How long does it take to recover from a tympanoplasty?

Full tympanoplasty surgery recovery time can be 2 to 3 months. In fact, the hearing will probably be worse than it was before surgery until this packing dissolves.

What is exploratory Tympanotomy?

Exploratory tympanotomy refers to the surgical approach to the middle ear and its structures for diagnosis. The steps of exploratory tympanotomy are the same as those that would precede transcanal middle ear surgery, such as stapedectomy or removal of a small glomus tympanicum tumor.

What type of hearing loss is seen in otosclerosis?

Otosclerosis is a form of conductive hearing loss. In some cases, as the ear loses its ability to transmit sound, people may first notice low-frequency hearing loss, meaning that low-pitched sounds are harder to hear.

Can you go deaf from otosclerosis?

Otosclerosis can cause mild to severe hearing loss, but it very rarely causes total deafness. Your hearing usually gets worse gradually over months or a few years, and may continue to get worse if ignored and left untreated. But the hearing loss can normally be treated successfully with either hearing aids or surgery.

How successful is surgery for otosclerosis?

This operation is usually performed under local anesthesia and requires but a short period of hospitalization and convalescence. Over 90 percent of these operations are successful in restoring the hearing permanently. Stapedectomy or stapedotomy is performed though the ear canal under local or general anesthesia.

Is otosclerosis curable?

Otosclerosis cannot be cured, but the hearing loss it causes can be overcome.

Is stapedectomy permanent?

The hearing usually starts to return about one week after surgery and can improve thereafter. Stapedectomy is successful in restoring hearing in more than 90 percent of cases, and the gain in hearing is usually permanent. In a small number of cases, there is no improvement in hearing.

How painful is a stapedectomy?

Is the stapedectomy considered a painful operation? Generally, a stapedectomy is not a very painful operation. Medication may be needed for a few days after the surgery.

What can go wrong with stapedectomy?

As for any surgery, a stapedectomy also has its share of risks and complications, including: Changes in taste. Dizziness or vertigo. Tinnitus (ringing in the ear)

Can a stapedectomy be reversed?

The complications of this technique were not significant except endolymph leakage in 1 case of obliterative OS. The reversal stapedotomy is a safe procedure for treatment of OS with excellent improvement of hearing levels in comparison with other stapes surgery, based on literature review.

Does a stapedectomy cure otosclerosis?

Meaning This model suggests that stapedectomy is a cost-effective option for treating otosclerosis from a patient perspective. Importance Otosclerosis can be managed through surgical treatment, such as stapedectomy, or through hearing amplification with hearing aids.

What is the difference between stapedectomy and stapedotomy?

Stapedectomy or Stapedotomy? What’s the Difference? Compared to a stapedectomy, a stapedotomy includes the use of a laser to make a precise hole (fenestration) in the stapes footplate. While a stapedectomy typically removes the entire stapes footplate and has it replaced with a micro prosthesis.

Is mastoid surgery painful?

The cut (incision) the doctor made behind your ear may be sore. And you may have ear pain for about a week. Your ear will probably feel blocked or stuffy.