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Journal of the Korean Society of Plastic and Reconstructive Surgeons 2004;31(3):279-286.
Published online May 1, 2004.
Philtrum Formation in Secondary Unilateral Cleft Lip and Microform Cleft Lip Using Vertical Interdigitation of the Orbicularis Oris Muscle.
Byung Chae Cho, Sang Woo Kim
1Department of Plastic and Reconstructive Surgery, Kyungpook National University, Daegu, Korea. bccho@knu.ac.kr
2Cha Hospital, College of Medicine, Pochon CHA University, Gumi, Korea.
Abstract
For patients who have undergone cleft lip surgery, the construction of the philtrum is crucial for restoring a normal appearance of the upper lip. Thirteen patients with unilateral secondary cleft lip deformity and 12 patients with microform cleft lip were treated for the creation of a philtral column between January of 1998 and October of 2002. Fifteen patients were male and 10 patients were female with an age ranges from 6 months to 43 years old. In patients with the depressed philtral column in secondary cleft lip deformity, external approach was used. The scar on the philtral column is excised and a full-thickness incision is made down to the orbicularis oris muscle and mucosa. The medial and lateral muscle flaps are exposed and split into two leaves. The two leaves of each muscle flap are sutured together to create a vertical interdigitation. Any excess skin is not excised but rather closed with 6-0 nylon. In patients with microform cleft lip, vertical interdigitation of the orbicularis oris was performed through the intraoral incision to avoid external scarring. The follow-up period ranged from 6 months to three years, with an average of 14 months. Among the 13 patients with secondary cleft lip deformity, 10 patients were satisfied with their surgical results. Two had fair results. One patient experienced a widening of the scar and no improvement in the philtral column. A possible cause for the lack of improvement in one patient was a partial disruption of the interdigitated muscle before wound healing. On the other hand, all patients with microform cleft lip were satisfied with their surgical results. In conclusion, the advantage of this procedure includes the creation of an anatomically natural philtrum through preserving the continuity and function of the muscle, sufficient augmentation of the philtral column by the vertical interdigitation of the muscle, relief of skin tension, and no donor-site morbidity. In addition, in microform cleft lip, the external visible scar was avoidable through the intraoral incision.
Keywords: Philtrum; Secondary cleft lip; Microform cleft lip
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