CERVICAL TRACHEA RECONSTRUCTION USING PLATYSMA MYOCUTANEOUS FLAP
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Cervical trachea reconstruction with a non stented playsma myocutaneous door flap (NPMCF) was studied in 20 dogs. Window defects involv ing 5 and 10 tracheal rings from the anterior tracheal wall were produced in 2 different groups of animals. The resuls were evaluated by clinical fol low-up of up to 3 months, by postoperative endoscopies 1 week after sur gery and 1 day before killing the animal and by macroscopic examination after the animal's natural death or sacrifice. The NPMCF proved to be adequate for the reconstruction of window de fects limtied to 5 and 10 rings, with success rates of 100% and 75% re spectively. The use of the NPMCF for tracheal reconstruction has the fol lowing advantages: relatively simple, easy and expeditious surgery; use of single operative field; versatility, dependability and ease of harvesting of the flap; availability of large amounts of donor tissue which allows ten sion-free cervical closure; adequate thickness; no need for mlcrosurgical techniques; reliable irrigation; resistance to environmental exposure as ev idenced by absence of infection; and 100% take rate with no scar stenosis at the suture line. Hair growth and accumulation of secretions was the only limitation of this method, However it can be easily dealt with. It can be anticipated that this method has a potential for application in well se lected patients.