One-Stage vs. Two-Stage Repair of Asymmetric Bilateral Cleft Lip: A 20-Year Retrospective Study of Clinical Outcome.

The one-stage or two-stage approaches have been a widely used technique for patients with an asymmetric bilateral cleft lip (ABCL). There is insufficient long-term outcome data between these two methods. The purpose of this retrospective study is to compare the clinical outcome over the last 20 years.