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Related Concept Videos

The Auditory Ossicles01:11

The Auditory Ossicles

The auditory ossicles of the middle ear transmit sounds from the air as vibrations to the fluid-filled cochlea. The auditory ossicles consist of two malleus (hammer) bones, two incus (anvil) bones, and two stapes (stirrups), one on each side. These bones develop during the fetal stage and are the ones to ossify first. They are fully mature at birth and do not grow afterward.
The aptly named stapes look very much like a stirrup. The three ossicles are unique to mammals, and each plays a role in...

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Techniques of Endoscopic Ossiculoplasty
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Published on: January 26, 2024

Plester's Angled Prosthesis for Ossicular Chain Reconstruction.

A Pusalkar1, G Schimansk, G Langhane

  • 1Usha, 118 Shibaji park M.B. Raut road, 400 028 Mumbai, India.

Indian Journal of Otolaryngology and Head and Neck Surgery : Official Publication of the Association of Otolaryngologists of India
|November 3, 2012
PubMed
Summary
This summary is machine-generated.

Plester angled prostheses offer improved reconstruction of incus long process defects, significantly reducing post-operative conductive hearing loss. This innovative approach provides better long-term outcomes for hearing restoration.

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Area of Science:

  • Otolaryngology
  • Biomedical Engineering
  • Surgical Innovation

Background:

  • Traditional methods for reconstructing incus long process defects using bone chips or cartilage grafts yield unsatisfactory long-term results.
  • A novel angled prosthesis has been developed to address the limitations of existing reconstructive techniques.

Purpose of the Study:

  • To evaluate the efficacy of the Plester angled prosthesis in reconstructing incus long process defects.
  • To assess the long-term audiological outcomes following the use of this innovative prosthesis.

Main Methods:

  • The Plester angled prosthesis, featuring a gold bell and titanium cuff, was designed for incus defect reconstruction.
  • The prosthesis is secured to the incus remnant and positioned over the stapes head.
  • A total of 81 prostheses were surgically inserted in patients with incus long process defects.

Main Results:

  • Post-operative conductive hearing loss was evaluated in 63 cases.
  • The average conductive hearing loss after surgery was 15 dB.
  • The prosthesis demonstrated a significant reduction in hearing loss compared to historical controls.

Conclusions:

  • The Plester angled prosthesis is an effective solution for incus long process defect reconstruction.
  • This prosthesis offers improved audiological results and addresses the limitations of previous reconstructive methods.
  • Further research may explore long-term hearing preservation and patient-reported outcomes.