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Published on: December 11, 2017
Nasal Valve Tensioning versus Crural Strut Grafts in the Management of External Nasal Valve Dysfunction
Kate Liang1, Leonie Gm Wijermars1, Rhea Darbari Kaul1
1From the Rhinology and Skull Base Research Group, Applied Medical Research Centre.
Background:
External nasal valve dysfunction, a common cause of nasal obstruction, is unlikely to be restored with septoplasty or turbinoplasty alone. This study assessed 2 rhinoplasty techniques for the prevention and treatment of external nasal valve dysfunction: lateral crural tensioning with articulated alar rim grafts (LCT/AARG) and lateral crural strut grafts (LCSG) in primary and revision rhinoplasty.
Methods:
A retrospective cohort analysis was performed. Patients received LCT/AARG or LCSG. Assessment occurred at baseline and at least 6 months after surgery. The primary outcome was nasal obstruction sensation, measured by a visual analog scale; the Nasal Obstruction Symptom Evaluation; and an ordinal nasal obstruction score. Secondary outcomes were nasal airflow (assessed by nasal peak inspiratory flow, nasal airway resistance, and minimum cross-sectional area) and patient-perceived aesthetic results (assessed by the Rhinoplasty Outcome Evaluation and a 13-point ordinal score).
Results:
A total of 203 primary rhinoplasty and 108 revision rhinoplasty patients were included. Both techniques had positive effects in primary and revision cases. In primary rhinoplasty, LCT/AARG was more effective than LCSG in improving nasal obstruction (category improvement of 1 or greater in nasal obstruction score, 81% versus 64% [ P < 0.01]), nasal airflow (change in nasal peak inspiratory flow, 21.00 ± 46.43 L/min versus 4.32 ± 42.64 L/min [ P = 0.01] and change in nasal airway resistance on the obstructed side, -0.29 [-0.71 to 0.03] Pa/cm 3 /s versus -0.11 [-0.56 to 0.18] [ P = 0.03]), and Rhinoplasty Outcome Evaluation score (42 [21 to 54] versus 31 [13 to 46] [ P = 0.02]). Both techniques were similar in revision rhinoplasty.
Conclusion:
LCT/AARG is a reliable technique offering improved airflow, reduced resistance, and better patient-reported outcomes compared with LCSG.
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