Risk factors for uterine incision extension during cesarean delivery.

Background: Unintentional extension of uterine incision is a known complication during cesarean delivery estimated to occur in 4-8% of cesarean deliveries. The aim of this study was to examine risk factors associated with unintentional uterine incision extension and to assess which of them are independent risk factors for this condition.

Study Design: We conducted a retrospective cohort study at a large public university tertiary referral center between 2003 and 2017.