ĐÁNH GIÁ KẾT QUẢ SỬ DỤNG VẠT CHỮ Z TRONG ĐIỀU TRỊ BIẾN DẠNG ĐẦU CÁNH MŨI MỨC ĐỘ NHẸ CHO BỆNH NHÂN DI CHỨNG KHE HỞ MÔI MỘT BÊN BẨM SINH

Abstract

Purposes: To evaluate the surgical outcomes of treating mild alar nasal deformities in patients with unilateral congenital cleft lip sequelae using a modified Z-plasty technique. Methods: A prospective, non-controlled interventional clinical study with longitudinal follow-up was conducted on 33 patients aged 10–38 years. All patients underwent nasal reconstruction using a modified Z-plasty technique with a 90° flap angle. Results: Postoperatively, nasal morphology and alar symmetry were significantly improved. The nostril height on the cleft side increased to 10.9 ± 0.9 mm, showing only a slight difference compared with the non-cleft side (11.2 ± 1.1 mm). The nostril height asymmetry index decreased markedly from 28% to 14%. There were 87.88% of patients who achieved good surgical outcomes, 12.12% had fair results, with no cases of poor outcomes or severe complications. Conclusion: The modified Z-plasty closed rhinoplasty technique with a 90° flap angle provides favorable outcomes in the treatment of mild alar collapse deformities secondary to unilateral cleft lip. This method effectively improves alar projection and nasal symmetry. The technique is performed using basic instruments, is low-cost, and is easy to deploy and apply at grassroots medical facilities.