The Effects of Concha Bullosa on Lateral Nasal Wall Asymmetries

Objective: The objective is to investigate the efects of unilateral and bilateral concha bullosa (CB) on lateral nasal wall asymmetries and septal deviation. Methods: Our study was designed retrospectively and included a total of 90 patients: 30 patients without CB (Group 1), 30 with unilateral CB (Group 2), and 30 with bilateral CB (Group 3). Septal deviation angles (SDAs), severities of nasal septal deviation (NSD) based on the NSD angle, deviation shapes, lateral nasal wall lengths, lateral nasal wall–septum distances, and lateral nasal wall morphologies were evaluated on paranasal computed tomography scans. Results: A signifcant diference was observed in the SDA values among the 3 groups (P=.000). The NSD severity was diferent among the 3 groups (P=.003): severe deviation was observed in 5 patients (16.7%) in Group 1, 10 patients (33.3%) in Group 2, and 6 patients (20%) in Group 3. In Group 2, a signifcant diference was observed in the lengths of the lateral nasal walls between the side with and without CB (P=.000). Conclusion: In patients with unilateral CB, lateral nasal wall asymmetries are frequently observed, necessitating planning for osteoplasty, osteotomy, and CB surgery before the procedure.