Minimally Invasive Horizontal Intercartilaginous Incision during Tracheostomy – A Cadaveric Study / 체질인류학회지

ABSTRACT

The paper describes a minimally invasive tracheostomy technique that uses an intercartilaginous incision without resection of the tracheal cartilage and discusses its feasibility. A total of 20 adult cadavers (13 males and 7 females) were included in this study. The distance from the arch of the cricoid cartilage to the thyroid isthmus, maximal displacement of the thyroid isthmus, number of tracheal rings underneath the thyroid isthmus, and maximally opened distance resulting from an intercartilaginous incision were measured. The mean distance from the arch of the cricoid cartilage to the thyroid isthmus was 21.4±5.0 mm. The thyroid isthmus mainly overlaid the 3rd and 4th tracheal rings. The mean maximal displacement of the thyroid isthmus was 9.0±2.8 mm. Minimally invasive tracheostomy via an intercartilaginous incision is a feasible technique. A skin incision 2 cm below the cricoid cartilage enables exposure of the thyroid isthmus and anular ligament between the 2nd and 3rd tracheal rings. The intercartilaginous incision allows sufficient space for the tracheostomy tube. An intercartilaginous incision without resection of a tracheal ring can be a good alternative tracheostomy technique, especially for patients who require transient tracheostomy.