Double cerclage for Preterm Delivery

This trial looks at whether placing two stitches instead of one in a cerclage procedure (a surgery to help prevent preterm birth) is more effective. Retrospective data (data from past cases) suggests that two stitches may be more effective, but this has not been proven in a large, controlled trial yet. The authors propose conducting a randomized control trial (a type of experiment where some patients receive the standard treatment and some receive the experimental treatment, and the outcomes are compared) to answer this question.