20-Year Outcomes and Revision Surgery Rates in a Large Cohort of Patients Undergoing Nasoalveolar Molding Therapy.

INTRODUCTION: Nasoalveolar molding (NAM) is a presurgical technique used to improve nasolabial cleft severity prior to repair. This study ascertains the rates of revision surgery in a large cohort of patients with a cleft who underwent NAM and were followed to facial maturity. METHODS: A single-institution retrospective review of all patients with a cleft who underwent NAM from 1995 to 2005 was performed. Operative reports were queried to record intervnetions to the lip and nose performed through facial maturity. Patients with incomplete medical records prior to reaching skeletal maturity were excluded. Pearson correlation coefficient and two-paired student t-tests were employed for data analysis. RESULTS: A total of 81 patients were studied, 46 male and 35 female, with 52(64%) unilateral and 29(36%) bilateral clefts. Average age at last follow-up was 18.8 years. Revision to the lip was carried out in 36(44%) of patients, and only 3(3.7%) prior to reaching facial maturity. Re-repair was performed in 10(12%) patients. No significant difference of lip revisions rates were seen among patients with a bilateral and unilateral cleft (48% v. 37.9%, p=0.38).Immature cleft rhinoplasty was performed in 3(4%) patients, and more commonly among patients with a unilateral (23%) than bilateral cleft (10%), p=0.18. Mature rhinoplasty was performed in 46(57%) patients, similarly between unilateral (58%) and bilateral clefts (55%). Nasal revision following mature rhinoplasty was performed in 8(10%) patients. CONCLUSIONS: Nasoalveolar molding is an effective adjunct to surgical management in reducing the burden of operative revisions as patients reach facial maturity, namely for bilateral clefts.