Correction of secondary cleft lip deformity: the whistle flap procedure

The Kapetansky flap was described to repair a whistle deformity or central vermilion defect following a primary bilateral cleft lip repair. The authors studied a modification of this technique, called the Whistle (wide-hinged island swing transposition labial enhancement) flap, to correct a wide array of secondary cleft lip deformities.

Patients with secondary cleft lip deformity who underwent the Whistle flap correction were studied (n = 21). Vertical lip height, lateral lip projections, and three-dimensional volumetric measurements were recorded along with physician and parent-patient satisfaction surveys.

From 1994 to 2006, 23 Whistle flap procedures were performed on 21 cleft lip patients (bilateral, n = 13; unilateral, n = 8). The average age at surgery was 15.4 years (range, 13 to 21 years). The average follow-up was 27.6 months. The vertical height of the cleft side Cupid's bow to vermilion bottom had a mean increase of 164 percent. Lateral projection of the upper lip showed a mean increase of 117 percent. Preoperatively, patients exhibited mean volumetric asymmetry of 29.4 percent, and this was reduced following treatment to approximately 3.1 percent. Physician satisfaction using a modified Whitaker classification (categories I through IV) demonstrated that 56 percent of patients were category I (no refinements necessary) and 44 percent were category II (minor revisions are advisable). Parent-patient satisfaction in the follow-up period was a mean of 3.5 as measured using a five-point scale ranging from 0 to 4. There were minimal perioperative complications.

The Whistle flap procedure provided a versatile and reliable option for the correction of vermilion defects from secondary cleft lip deformities.