Original Articles
A morphometric study of larynx in Northwest Indian population& its clinical significance | |
Dr. Amarbir Kaur, Anshika Acharya | |
Introduction: The larynx, also known as the voice box or organ of phonation, is the upper, enlarged portion of the lower respiratory tract that is adapted to produce voice. Laryngeal morphometrics are crucial for providing landmarks during laryngoplasty and partial laryngectomies. Material and methods: The present study was carried out in the department of Anatomy of JNUIMSRC, Jaipur on 20 laryngeal specimens of unknown age and gender. Parameters measured were: height of the larynx- from tip of epiglottis to the lower margin/border of arch of cricoid cartilage, height of the larynx- from tip of epiglottis to thyroid notch and height of the larynx- from thyroid notch to lower margin of arch of cricoid cartilage. Result: Mean of height from tip of epiglottis to lower border of cricoid cartilage was 46±5.12mm (range being 36-56mm) , mean of height from thyroid notch to lower border of cricoid cartilage was 35.7±4.98mm (range being 29-45mm). Mean of height from tip of epiglottis to thyroid notch was 25±2.3mm (range being 24-31mm). Discussion: In the present study, the mean of height of larynx from tip of epiglottis to lower border of cricoid cartilage was was lower than the values reported in previous whereas the mean of height of larynx from thyroid notch to lower border of cricoid cartilage was slightly higher than that of that of others. The morphometry of the cartilages of the larynx can also be enlightening in the planning of surgical interventions of the larynx. It also has implications for placing the electrodes during the electromyography of the larynx and the interpretation of CT and MRI scans of the larynx. Conclusions: Detailed knowledge of the larynx’s anatomy through morphological studies is essential for precise surgical intervention like laryngeal reconstruction or removal of laryngeal tumour. |
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