Related Experiment Video
Updated: May 3, 2026

Robotic Myotomy and Partial Fundoplication for Achalasia
Published on: August 11, 2023
Simultaneous double-opposing Z-plasty and posterior pharyngeal flap
Philipp Metzler1, David W Low2, Gerhard S Mundinger3
1Craniofacial Fellow, Department of Plastic and Reconstructive Surgery, Yale University School of Medicine, New Haven, CT.
Purpose:
Strategies to address severe anteroposterior palatal shortening with velopharyngeal insufficiency include palatal lengthening or manipulation of posterior pharyngeal tissue as a flap or sphincter. In some cases, a single procedure alone is not sufficient to achieve dynamic velopharyngeal closure. The objective of this study was to determine whether double-opposing Z-plasty coupled with a posterior pharyngeal flap would achieve adequate palatal length in severe velopharyngeal dysfunction.
Materials And Methods:
Six patients, 3 with previously unrepaired cleft palate and 3 children with previous straight-line repairs and significant anteroposterior shortening, were included. Demographic and perioperative information was tabulated. Subjective and objective speech data were gathered, if available. Complications, follow-ups, and postoperative nasometric results were compiled. Statistical analysis involved the paired t test.
Results:
There were no perioperative complications. Follow-up was at least 1 year. No postoperative fistulas or nasal obstruction developed. Hypernasal speech and nasal emission were subjectively improved in all patients. Nasometric data showed a statistically significant improvement in nasal air escape with speech.
Conclusions:
Simultaneous double-opposing Z-plasty and posterior pharyngeal flap can be performed effectively. This strategy is useful for severe velopharyngeal dysfunction secondary to anteroposterior palatal shortening or a previously unrepaired cleft palate, and the technique optimizes palatal function and creates a mechanical blockade to nasal air escape.

