| Objective: To study the anatomical character of sternocleidomastoid myoperiosteal periosteum flap and evaluate the feasibility of reserving sternal head of the sternocleidomastoid myoperiosteal-flap in the correction of subglottic laryngotracheal stenosis. Methods : The sternocleidomastoid myoperiosteal flap in 24 (48 sides) adult cadavers, on which were perfused with red latex, were carefully studied,including the shape, blood supplies , the area of the flap and the maximal length of the dissociated muscle. 16 patients who had subglottic laryngotracheal stenosis underwent subglottic laryngotracheal reconstraction with the sternocleidomastoid myoperiosteal flap. The clavicular head was used in the operation, and the sternal head was reserved. When the two heads were dissected , meticulous dissection was very important to preserve the blood supply of the muscle from superior thyroid artery . The ipsilatered sternocleidomastoid muscle was carefully dissected to permit enough mobility for flap to reach the defect without tension . After all of this, a T-tube was inserted into the tracheal, and it was put in the place about 6 to 8 weeks ,then to be replaced by a tracheotomy tubes .If there was no problem ,it could be decannulated after 2 weeks. Results : The sternocleidomastoid myoperiosteal flap is vascularity with three branches of artery , superior thyoid artery is the main artery supplies for the clavicular periosteum. The cavicular periosteum can provide enough area to repair the stenosis . The dissected length of the flap was 10.5 ± 1.0cm, which can be transferred to the anterior laryngotracheal wall without tension. The sternocleidomastoid with the sternal head could keep the balance of the neck, and prevent the patient from wryneck. The T-tube which was replaced by a tracheotomy tube in 2 months. The patients were...
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