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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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Is auditory function affected after Le Fort I osteotomy?

B Bayram1, K Deniz, E Aydin

  • 1Baskent University, Faculty of Dentistry, Department of Oral and Maxillofacial Surgery, Ankara, Turkey. dtburak@yahoo.com

International Journal of Oral and Maxillofacial Surgery
|February 17, 2012
PubMed
Summary
This summary is machine-generated.

Le Fort I osteotomy may cause minor, clinically insignificant changes in hearing sensitivity and middle ear pressure. These effects on Eustachian tube function and hearing levels resolve within four weeks post-surgery.

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Area of Science:

  • Otolaryngology
  • Maxillofacial Surgery
  • Audiology

Background:

  • Le Fort I osteotomy is a surgical procedure to correct midface discrepancies.
  • Potential impacts on Eustachian tube and middle ear function are not fully understood.

Purpose of the Study:

  • To assess changes in Eustachian tube and middle ear function after Le Fort I osteotomy.
  • To evaluate alterations in hearing levels in patients undergoing this procedure.

Main Methods:

  • Prospective study of 20 patients undergoing Le Fort I osteotomy.
  • Hearing sensitivity tests (pure tone audiometry) and acoustic impedance measurements were performed pre-surgery and at 1 and 4 weeks post-surgery.

Main Results:

  • Statistically significant differences in pure tone audiometry were noted at 125Hz, 250Hz, and 1000Hz.
  • No statistically significant differences in middle ear pressure or compliance were observed between pre- and post-operative measurements.

Conclusions:

  • Le Fort I osteotomy can lead to mild, transient changes in hearing sensitivity.
  • Middle ear pressure and function remain largely unaffected, with all observed changes being clinically insignificant.