Soliman AMS, Ianacone DC, Isaacson GC.
Ex vivo ovine model for teaching open laryngotracheal surgery.
World J Otorhinolaryngol Head Neck Surg 2018;
4:140-144. [PMID:
30101225 PMCID:
PMC6074011 DOI:
10.1016/j.wjorl.2018.04.002]
[Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2018] [Accepted: 04/17/2018] [Indexed: 11/30/2022] Open
Abstract
Objective
To develop an animal model for teaching open laryngotracheal surgical procedures.
Methods
The heads and necks from 5 pre-pubescent sheep were harvested after humane anesthesia. After 2–5 days to allow for rigor mortis to resolve, a specimen was supported with sandbags on an operating table. Operative procedures including tracheotomy, medialization laryngoplasty, anterior cartilage grafting, tracheal resection with primary anastomosis, and laryngectomy with closure of the pharynx were attempted.
Results
The ovine head and neck provided an accurate model for simulation of all attempted procedures. Ovine tissue resembled that of humans in mechanical properties and handling. Postsurgical endoscopy confirmed graft alignment.
Conclusions
The sheep head and neck provides an inexpensive, realistic, and safe model for surgical training for a variety of open laryngotracheal procedures. This is particularly relevant given the recent emphasis on surgical simulation and the relative rarity of some of these procedures in residency training.
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