Abstract: Objective: To investigate the surgical approach to bilateral micro-form cleft lip and to evaluate the results. Methods: A total of 23 patients who underwent the bilateral micro-form cleft lip revision in our cleft lip and palate treatment and research center between January 2009 and December 2020 were evaluated by photographic data for symmetry of cupid's bow, vermilion symmetry, and vermilion notching. Results: The cleft lip was repaired by the linear method in 11 cases, the V-Y advanced flap in 2 cases, and the bilateral vermilion musculomucosal sliding flaps (VMSF) in 10 cases. From the results of the follow-up, the patients with VMSF had the highest scores, followed by those with linear sutures, and V-Y procedure, although only 2 cases, had low scores in all postoperative evaluations. Conclusions: The vermilion notching is the biggest postoperative problem in patients with bilateral micro-form clefts, and the repair method with VMSF is more desirable than the postoperative results achieved by the simple linear suture and V-Y procedure.

Key words: micro-form cleft lip, bilateral cleft lip, surgical method, symmetry, evaluation