Morphometric internal nasal valve changes after revision rhinoseptoplasty using a lateral wall stabilization algorithm

Objective. To assess anatomical changes (angle, area, collapse) of internal nasal valve after revision rhinoseptoplasty using a lateral wall stabilization algorithm. Material and methods. The study cohort included 20 patients with valve insufficiency after primary rhinoseptoplasty who underwent original revision surgery consisted of six stages: ultrasonic rhinoscultpture, osteotomies with preservation of bony bridge, placement of spreader grafts and flaps, Z-shaped fixation of osteocartilaginous junction and placement of batten grafts. Morphometric assessment was performed before and 6 months after surgery. We used endoscopy and measured valve angle and collapse scoring. CT was performed for precise measurement of the angle and area of valvular region. Statistical analysis was performed using the paired Student’s t-test. Results. All anatomical parameters significantly (p<0.001) improved after surgery. Endoscopically measured valve angle increased on the right from 10.37±1.39 to 12.60±2.02° (+21.3%), and on the left from 10.54±1.55 to 12.81±2.26° (+21.6%). Mean endoscopic collapse score decreased from 1.15±0.80 to 0.28±0.45 (–73.3%). According to CT data, valve angle increased from 11.44±1.72 to 12.77±2.28° (+11.7%), and lumen area increased from 37.23±15.36 to 45.65±17.92 mm² (+22.6%). Conclusion. Original lateral nasal wall stabilization algorithm significantly improves key anatomical parameters of internal nasal valve with enlargement of its angle and lumen area, as well as elimination of dynamic collapse. This technique provides stable anatomical reconstruction ensuring long-term functional success.