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  • Title: Age and Preoperative Velar Closure Ratio Are Significantly Associated With Surgical Outcome of Furlow Double-Opposing Z-Plasty in Palatal Re-Repair.
    Author: Cheng X, Bo Z, Yin H, Yang K, Li J, Shi B.
    Journal: J Oral Maxillofac Surg; 2020 Mar; 78(3):431-439. PubMed ID: 31654644.
    Abstract:
    PURPOSE: The patient selection criteria for Furlow double-opposing Z-plasty in palatal re-repair remain obscure. This study investigated whether patients' preoperative characteristics significantly affected the surgical outcome of Furlow double-opposing Z-plasty in palatal re-repair. MATERIALS AND METHODS: We designed and implemented a case-control study nested in a cohort, which could be divided into 2 stages. In the first stage, a retrospective cohort study was performed to collect basic information and the preoperative status of the patients who would undergo Furlow double-opposing Z-plasty to correct velopharyngeal insufficiency after primary cleft palate repair. Eight predictor variables were included: age, gender, primary surgical technique, velopharyngeal closure pattern, velar movement, lateral pharyngeal wall movement, levator muscle orientation, and preoperative velar closure ratio. The outcome variable was postoperative velopharyngeal function described as velopharyngeal competence or velopharyngeal insufficiency. In the second stage, a case-control analysis was performed to explore the potential factors affecting the surgical outcome. Univariate and multivariate analyses were applied to examine the relationship between the predictor variables and surgical outcome. RESULTS: The sample was composed of 83 patients and resulted in 54 velopharyngeal competence outcomes and 29 velopharyngeal insufficiency outcomes after surgery. Two predictors showed statistical significance: age and preoperative velar closure ratio. The possibility of postoperative velopharyngeal insufficiency in patients older than 14.5 years was 6 times higher than that in patients younger than 14.5 years. The possibility of postoperative velopharyngeal insufficiency in patients with preoperative velar closure ratios of 0.9 or greater was one fifth that in patients with preoperative velar closure ratios between 0.8 and less than 0.9. CONCLUSIONS: The results of this study suggest that age and preoperative velar closure ratio are significantly associated with postoperative velopharyngeal insufficiency. Age was a risk factor in achieving good surgical outcomes, and the preoperative velar closure ratio remained a protective factor.
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