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Cricoid arch replacement in dogs. Further studies.
Archives of Otolaryngology (Chicago, Ill. : 1960)
|January 1, 1975
Summary
Cricoid arch transplantation effectively repaired induced subglottic stenosis in dogs. This surgical technique, using allotransplantation and autogenous hyoid transposition, achieved satisfactory airway patency and vocal cord function without immunosuppression.
Area of Science:
- Regenerative Medicine
- Surgical Innovation
- Veterinary Surgery
Background:
- Previous studies demonstrated feasibility of cricoid arch transplantation for subglottic defects.
- Normal canine models showed promising airway patency and vocal cord function.
Purpose of the Study:
- To evaluate cricoid arch allotransplantation for repairing induced subglottic stenosis in a canine model.
- To assess the efficacy of autogenous hyoid arch transposition for donor site repair.
- To determine the long-term outcomes without immunosuppression or stenting.
Main Methods:
- Subglottic stenosis was surgically induced in a series of dogs.
- Allotransplantation of cricoid arch was used for repair.
- Autogenous hyoid arch transposition repaired defects in donor animals.
- No immunosuppressive agents or stents were utilized.
- Animals were followed for up to one year.
Main Results:
- Satisfactory airway patency was achieved in all treated dogs.
- Preservation of vocal cord function was observed.
- Histologic studies confirmed successful integration and function.
- Both cricoid arch allotransplantation and hyoid arch autotransplantation yielded positive outcomes.
Conclusions:
- Cricoid arch allotransplantation is a viable method for correcting induced subglottic stenosis.
- Autogenous hyoid arch transposition effectively manages donor site defects.
- The described surgical approach offers a promising, non-immunosuppressive treatment for subglottic stenosis.