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The Effect of Cartilaginous Reinforcing Sutures on Initial Tracheal Anastomotic Strength: A Cadaver Study.
MedLine Citation:
PMID:  22527049     Owner:  NLM     Status:  Publisher    
Objective. During tracheal resection with primary anastomosis, cartilaginous reinforcing sutures may be placed outside of the primary anastomosis with the goal of preventing early dehiscence. The direct effect of such reinforcing sutures on anastomotic strength has not been previously investigated. The goal of this study was to determine if the addition of cartilaginous reinforcing sutures adds to tracheal anastomosis stability.Study Design. Prospective cadaver study.Setting. This research was conducted at an anatomy lab at Indiana University School of Medicine.Subjects and Methods. Twelve cadaver tracheas were harvested. Each trachea was bifurcated, with 1 segment of each trachea transected and anastomosed using circumferential sutures and the remaining tracheal segment undergoing the same procedure with the addition of cartilaginous reinforcing sutures. Segments (proximal versus distal) were alternated to control for potential anatomic-based strength differences. The force necessary for anastomotic rupture was measured, and a Wilcoxon signed-rank test was used to compare means.Results. Analysis demonstrated the mean anastomotic rupture point for tracheas with reinforcing sutures was 297 N (95% confidence interval = 241.1-352.9), while the mean for trials without reinforcing sutures was 173 N (95% confidence interval = 142.63-203.37; P = .0054). The point of rupture occurred at the anastomosis in 1 case with reinforcing sutures and in 8 of 11 cases without reinforcing sutures.Conclusions. Cartilaginous reinforcing sutures were found to provide a higher force requirement for tracheal anastomotic rupture when compared with anastomoses without these sutures. This improved stability in tracheal anastomosis may result in a decreased risk of early tracheal rupture after anastomosis.
Peter N Schilt; Swapna Musunuru; Mimi Kokoska; Bryan McRae; Daniel O'Neill; Stacey L Halum
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-4-23
Journal Detail:
Title:  Otolaryngology--head and neck surgery : official journal of American Academy of Otolaryngology-Head and Neck Surgery     Volume:  -     ISSN:  1097-6817     ISO Abbreviation:  -     Publication Date:  2012 Apr 
Date Detail:
Created Date:  2012-4-24     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8508176     Medline TA:  Otolaryngol Head Neck Surg     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Department of Otolaryngology-Head and Neck Surgery, Indiana University School of Medicine, Indianapolis, Indiana, USA.
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