Traumatic deviated nose deformity refers to the dislocation, healing and fibrosis traction of the external nose after external force injury, which leads to external nose deformity. According to the length of time after injury, different plastic methods can be used to correct traumatic deviated nose.

Patients within 2 weeks after injury can use nasal bone restorer for routine nasal bone reduction under topical anesthesia. Patients who have been injured for more than 2 weeks generally can't perform closed nasal bone reduction, because the callus has healed at this time, which is difficult to reduce and the postoperative effect is poor.

Patients with traumatic deviated nose deformity more than 6 months after trauma should use external butterfly incision for deviated nose plastic surgery. External butterfly incision has the advantages of short approach, good exposure of nose cone, clear and open surgical field and simple operation. The nasal deformity can be observed, analyzed and corrected accurately under direct vision during operation. The incision and operation of the operation are within the facial danger triangle, and strict aseptic operation is needed during the operation. For patients with scar constitution, this incision path should be used with caution.