Related Experiment Video
Updated: Feb 9, 2026

Iris Fixation via External Pentagram Suturing
Published on: May 5, 2022
A modified technique to simplify external fixation of the subglottic silicone stent
Claudio Andreetti1, Cecilia Menna1, Antonio D'Andrilli1
1Division of Thoracic Surgery, University of Rome "Sapienza", Rome, Italy.
Abstract:
Several techniques have been previously proposed to fix silicone stents for subglottic tracheal stenosis. However, they require special tools or cumbersome manoeuvres. The proposed modified procedure offers a potential alternative fixing technique using absorbable suture buried subcutaneously and not requiring special devices. This procedure was successfully performed in 27 patients with inoperable complex subglottic stenosis. The mean distance from vocal folds, the mean length and mean diameter of stenosis were 17 ± 2 mm, 20 ± 2.9 mm and 6.9 ± 0.9 mm, respectively. The mean procedural time for fixing the stent was 5 ± 0.3 min. No intraoperative or postoperative complications such as stent damage, dislocation, plugging or vocal folds dysfunction were reported (mean follow-up 20 ± 7.7 months).
Related Concept Videos
Work Done on a System by External Force
In the presence of a non-conservative opposing force, like friction, some part of the work done...
Fixation and Sectioning
The simplest type of preparation is the wet mount, in which the specimen is placed in a drop of liquid on the slide. A liquid specimen can be directly deposited on the slide using a dropper. Solid specimens, such as skin scraping, can be placed on the slide before adding a drop of liquid to prepare the wet mount. Sometimes the liquid is simply water, but stains are often added...
Internal and External Forces
External and Internal Respiration
General External Flow Characteristics
External Anatomy of the Kidney
The kidneys are located in the retroperitoneal space on either side of the vertebral column, protected posteriorly by the 11th and 12th ribs. The right kidney sits slightly lower than the left owing to the presence of the liver...

