Severe cleft lip secondary to nasal deformity often has abnormalities of the nasal cartilage, nasal septum cartilage and nasal bones. The anatomical elements of the formation of cleft lip nasal deformity are mainly a composite deformity caused by a combination of nasal floor collapse due to maxillary defect, nasal wing adduction due to nasal floor muscle displacement, nasal wing collapse due to large wing cartilage deformity, nasal septal deviation, and nasal bone deviation.
Correction of secondary deformities of cleft lip emphasizes that bone is the foundation, muscle reconstruction is the key, and skin adjustment is a passive adaptation. Correction of nasal deformity must be performed on the basis of lip-nose muscle reconstruction. Lip-nasal muscle reconstruction can correct nasal basal depression, displacement of the lateral foot of the nose and partial deviation of the septum. Cases with milder deformities can be well corrected. In cases with significant septal deviation and nasal bone deformity, the deviated septal deformity and nasal bone deformity must be corrected.
With the technical support of three-dimensional directional reconstruction of lip and nasal muscles, the open-entry nasal deformity correction can restore the anatomical position of nasal cartilage and correct the deviated septum cartilage and nasal bone deflection to achieve good treatment results.