Occurred in nasal cavity infection or burn. There may be thick scar hyperplasia around the nostril, which not only affects the appearance but also affects the ventilation.

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way

(a) nasolabial groove flap method is suitable for cases of mild nostril stenosis.

Cut the affected nasal floor according to the design line, peel off the subcutaneous tissue and the base of the alar to both sides, and open the nostrils. After the nostril is enlarged, according to the size of the wound at the bottom of the nose, a triangular flap with corresponding width and slightly longer length is designed on the outside of the nostril. Cut and lift the flap according to the design line, and transfer the flap to the defect of nasal floor for suture. The donor flap area was peeled off and sutured in layers.

(2) The staggered flap method is suitable for those with moderate nostril stenosis and only a small hole in the center of nostril.

Take the central hole as the center, make an arc incision clockwise to the tip of nose and the bottom of nose, and the incision is half as deep as the scar tissue around nostril, and lift the flap at this layer. An arc incision was made counterclockwise around the central hole on the inside of nostril, and the inner mucosal flap was turned outwards; The outer skin flap was turned to the inside and sutured to the wound edge of the new nostril. (3) Skin grafting is suitable for patients with severe nostril stenosis and scar adhesion of lower nostril blocking ventilation.

According to the normal nostril size, a circular incision was made at the nostril to remove the scar tissue in the lower nostril. Cut a piece of medium-thick skin flap slightly larger than the wound in the nostril, and wrap the skin flap wound outside a rubber tube with the same diameter as the nostril. Sew the opposite edges of the skin graft, sew two stitches of traction thread on the inner edge of the skin graft, pass through the rubber tube and pull it out of the tube. Insert the rubber tube wrapped around the skin into the nostril and tighten the traction wire. Suture the outer edge of the skin flap with the edge of the nostril. In order to prevent nostril contraction after operation, rubber tube should be placed to dilate nostril for 6~ 12 months.