The risk of the 25 gauge needle breaking during injection through the cricothyroid
membrane is reduced by withdrawing the needle after initial injection, before the patient coughs.
(12) Although injury to the latter can result in abnormal cricothyroid
function, frank vocal fold immobility is unlikely, as seen in our case.
A small horizontal midline skin incision was made at the level of the cricothyroid
A needle inserted into the trachea via the cricothyroid
membrane permitted successful intermittent jet ventilation with oxygen.
But what real benefit comes from knowing the difference between the cricothyroid
and thyroarytenoid muscles?
It then ascends to enter the larynx near the cricothyroid
joint or through the lower horn of the thyroid cartilage, through the inferior constrictor, and into the apex of the piriform sinus (19, 22).
The function of the cricothyroid
muscle is defined in its name: it pulls the thyroid cartilage toward the cricoid cartilage.
(10) Finally, research shows a greater ratio of activity by the thyroarytenoid muscle relative to the activity of the cricothyroid
muscle occurs during and after using the SOVTs.
The superior glands are most commonly located at the level of the cricothyroid
joint, approximately 1 cm above the intersection of the recurrent laryngeal nerve (RLN) and the inferior thyroid artery in a plane deep to the RLN.
It is important to note that the recurrent laryngeal nerve crosses the K-J space as it enters inferolaterally to the cricothyroid
joint, and therefore careful dissection in this area is necessary to avoid nerve injury (figure, B).
Occasionally, the extralaryngeal muscles and the cricothyroid
muscles are injected to improve the tremor.
It may cause a forward position of the cricoid [cartilage] in relation to the thyroid [cartilage], thereby stretching the cricothyroid