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Related Concept Videos

Larynx01:21

Larynx

6.5K
The human larynx, often referred to as the voice box, is an intricate organ located in the neck. It serves as a pathway for air to enter the lungs during respiration and is an essential component of voice production.
Anatomy of the Larynx
The larynx consists of various components, including cartilage, muscles, and vocal cords. Its structure includes three large unpaired cartilages—the thyroid, cricoid, and epiglottis—and three smaller paired cartilages—the arytenoids,...
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[Modified closed reduction for the arytenoid cartilage dislocation].

Wen Xu1, De-min Han, Rong Hu

  • 1Department of Otorhinolaryngology Head Neck Surgery, Beijing Tongren Hospital, Capital Medical University, Key Laboratory of Otorhinolaryngology Head Neck Surgery, Ministry of Education, Beijing 100730,China.

Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi = Chinese Journal of Otorhinolaryngology Head and Neck Surgery
|October 10, 2013
PubMed
Summary
This summary is machine-generated.

Arytenoid cartilage dislocation often causes hoarseness and vocal fold immobility. A modified closed reduction technique effectively restored voice and vocal fold function in most patients, particularly after intubation.

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Area of Science:

  • Otolaryngology
  • Laryngology
  • Surgical Innovation

Background:

  • Arytenoid cartilage dislocation is a recognized cause of vocal fold immobility and persistent hoarseness.
  • Vocal fold immobility can result from various etiologies, including post-intubation trauma and blunt laryngeal injury.
  • Effective management strategies are crucial for restoring voice function and improving patient quality of life.

Purpose of the Study:

  • To investigate the clinical characteristics of arytenoid cartilage dislocation.
  • To evaluate the efficacy of a modified closed reduction technique for treating arytenoid cartilage dislocation.
  • To assess the impact of the procedure on voice function and vocal fold mobility.

Main Methods:

  • A cohort of 67 patients with vocal fold immobility underwent modified closed reduction under local anesthesia.
  • The procedure involved indirect laryngoscopy and the use of laryngeal forceps for repositioning the dislocated arytenoid cartilage.
  • Patients' clinical characteristics, voice function, and treatment outcomes were systematically evaluated.

Main Results:

  • Vocal fold immobility, predominantly on the left side (74.6%), was observed in 67 patients, with anterior dislocations being most common (63 cases).
  • Modified closed reduction improved voice in 51 patients and vocal fold movement in 54 cases, with significant recovery noted within 6 weeks.
  • In non-intubated cases with blunt laryngeal trauma, outcomes were variable, potentially limited by cicatricial contracture.

Conclusions:

  • Modified closed reduction under local anesthesia is an effective technique for restoring voice and vocal fold mobility in arytenoid cartilage dislocation.
  • Recurrent laryngeal nerve abnormalities associated with dislocation are often temporary and resolve post-reduction.
  • The success of arytenoid reduction in cases of blunt laryngeal trauma may be influenced by underlying tissue injury and cicatricial contracture.