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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...
Oxygen Delivering System III: Tracheostomy and T-piece01:23

Oxygen Delivering System III: Tracheostomy and T-piece

Oxygen delivery is critical in clinical care, especially for patients with respiratory disorders or those undergoing surgical procedures. Various systems, such as tracheostomy and the T-piece, deliver oxygen to the lungs, ensuring adequate arterial oxygenation.
Tracheostomy
A tracheostomy is a surgically created opening (stoma) in the anterior part of the trachea. It is used to establish a patient airway, bypass an upper airway obstruction, simplify the removal of secretions, permit long-term...

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Related Experiment Video

Updated: Jun 11, 2026

Techniques of Endoscopic Ossiculoplasty
09:07

Techniques of Endoscopic Ossiculoplasty

Published on: January 26, 2024

First experiences with a new adjustable length titanium ossicular prosthesis (ALTO).

Mark Praetorius1, Sabrina S Kirchenbauer, Stefanie Buss

  • 1Department of Otolaryngology, Head and Neck Surgery, University of Heidelberg Medical Center, Germany. mark_praetorius@med.uni-heidelberg.de

Acta Oto-Laryngologica
|July 1, 2010
PubMed
Summary

A new adjustable titanium prosthesis for ossiculoplasty shows promising hearing outcomes. Intraoperative length adjustment offers a valuable advantage for surgical procedures.

Related Experiment Videos

Last Updated: Jun 11, 2026

Techniques of Endoscopic Ossiculoplasty
09:07

Techniques of Endoscopic Ossiculoplasty

Published on: January 26, 2024

Area of Science:

  • Otolaryngology
  • Biomedical Engineering
  • Audiology

Background:

  • Ossiculoplasty aims to restore hearing by reconstructing the middle ear ossicles.
  • Traditional prostheses may require precise pre-operative fitting, with limited intraoperative adjustability.
  • A novel length-adjustable titanium prosthesis was developed to address these challenges.

Purpose of the Study:

  • To evaluate the hearing outcomes of ossiculoplasty using a newly designed, length-adjustable titanium prosthesis.
  • To assess the feasibility and benefits of in-situ length adjustment during surgery.

Main Methods:

  • A retrospective pilot study involving 14 patients undergoing tympano-ossiculoplasty.
  • Comparison of pre- and post-operative audiological (air-bone gap closure) and clinical results.
  • Utilized a novel titanium prosthesis with intraoperative length adjustability.
  • Matched comparison group based on age and pathology.

Main Results:

  • An average air-bone gap closure within 15 dB was achieved in 43% (6 of 14) of patients.
  • No instances of prosthesis reperforation or extrusion were reported.
  • Positive clinical assessment of the tympanic membrane.

Conclusions:

  • The length-adjustable titanium prosthesis demonstrates good potential for achieving favorable hearing results in ossiculoplasty.
  • The ability to readjust prosthesis length during surgery is a significant clinical advantage.
  • This prosthesis offers a viable option when autologous reconstruction is not feasible.