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  • Title: Experimental autogenous cartilaginous grafts for laryngotracheoplasty: a comparison of two techniques and two different types of grafts.
    Author: Naguib MB, Badr-Eldin M, Iskander N, Hassan I.
    Journal: Kulak Burun Bogaz Ihtis Derg; 2006; 16(6):246-50. PubMed ID: 17220655.
    Abstract:
    OBJECTIVES: This experimental work was performed to compare the results of laryngotracheoplasty with the use of autogenous cartilaginous grafts harvested either from the auricula or costal cartilage using two techniques, anterior or posterior graft placement. STUDY DESIGN: This study was carried out in 20 healthy dogs of both sexes and varying ages, weighing about 12-15 kg. The animals were divided into two groups (A and B), equal in number. We used costal cartilage grafts in group A, and auricular cartilage grafts in group B. The anterior and posterior laryngeal walls were vertically divided and the cartilage grafts were sutured in place. RESULTS: Microscopic examination of laryngeal specimens showed a higher rate of graft displacement in group B (40% vs 20%) and in those placed posteriorly (50% vs 10%) (p<0.05). Auricular cartilages showed more resorption and degeneration than costal cartilages. Severe to complete resorption was detected in 30% in group B, which was twice as much in anteriorly placed grafts, whereas no resorption occurred in group A. CONCLUSION: The use of auricular grafts and posterior placement was significantly associated with more graft displacement.
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