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There are two common types of ossicular replacement prostheses, the total ossicular replacement prosthesis (TORP) and partial ossicular replacement prosthesis (PORP). A TORP replaces the entire ossicular chain while a PORP replaces only the incus and malleus but not the stapes. Indications for use of an ossicular replacement prosthesis include: [1]
3 Ossicular reconstruction. 4 Surgical approach. ... After that, surgery may be considered. ... This procedure is required if there is a damage to the bone chain of ...
Any dysfunction or damage to the ossicular chain, such as ossicular discontinuity, can lead to conductive hearing loss. [2] [3] In such cases, the transmission of sound from the outer ear to the inner ear is compromised. This type of hearing loss is typically treatable with surgical reconstruction of the ossicular chain. [2] [3]
The tympanoplasty implant is indicated in cases of congenital or acquired defects of the ossicular chain, due to e.g.: Chronic otitis media; Traumatic injury; Malformation; Cholesteatoma; It can also be used to treat patients with inadequate conductive hearing from previous middle ear surgery.
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.
Hearing aids are a common treatment for hearing loss disorders. A more specific treatment is surgical, involving excision of the sclerotic areas and then further repair of the ossicular chain. There are several techniques, sometimes involving two surgeries; [2] [13] success rates are, however, variable. [14]
This procedure restores continuity of ossicular movement and allows transmission of sound waves from the eardrum to the inner ear. A modern variant of this surgery called a stapedotomy, is performed by drilling a small hole in the stapes footplate with a micro-drill or a laser, and the insertion of a piston-like prothesis.
If the reconstruction is poorly performed, it may result in a high rate of recurrent cholesteatoma. [20] Preservation of the ear canal wall. If poorly performed, it may result in a high rate of both residual and recurrent cholesteatoma. [21] Reconstruction of the chain of hearing bones using a passive middle ear implant. [22]