Current Advances in Surgical Techniques for Secondary Cleft Palate Repair: A Systematic Review

ObjectiveTo systematically review advances in surgical techniques for secondary cleft palate repair, emphasizing their impact on velopharyngeal function, speech outcomes, and the methodological validity of speech assessments used in published studies.DesignFollowing PRISMA 2021 guidelines, six electronic databases were searched for articles from January 2012 to February 2025 using MeSH terms related to secondary cleft palate repair, velopharyngeal insufficiency, palatoplasty, and speech outcomes. Eligible studies included clinical reports with ≥10 patients undergoing secondary repair. Data on surgical methods, outcomes, and complications were extracted and qualitatively synthesized due to heterogeneity across studies.SettingAll published clinical studies evaluating secondary cleft palate repair outcomes.Patients/ParticipantsIndividuals presenting with residual velopharyngeal insufficiency, recurrent fistula, or speech dysfunction following primary palatoplasty.Main Outcome MeasuresSpeech resonance and intelligibility, velopharyngeal closure rate, fistula recurrence, donor-site morbidity, and obstructive sleep apnea risk.ResultsFourteen studies met the inclusion criteria. Palate-based re-repair with Furlow double-opposing Z-plasty and buccal myomucosal flaps improved resonance and closure in small to moderate gaps. Pharyngeal flap and sphincter pharyngoplasty achieved satisfactory closure in larger defects but increased the risk of airway obstruction. However, most studies lacked validated speech protocols or controlled for articulatory errors and fistula effects, limiting confidence in the interpretation of outcomes.ConclusionsWhile secondary repairs often improve resonance and velopharyngeal competence, evidence remains constrained by heterogeneity and non-validated assessment methods. Future multicenter research integrating standardized, speech pathologist-verified protocols is essential to establish evidence-based algorithms for secondary cleft palate repair.