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Surgical site infection (SSI) is one of the main causes of postoperative morbidity and mortality. Appendectomy for acute appendicitis is one of the most commonly performed surgical interventions worldwide. The use of ring retractors to protect the wound edge from contaminated intra-abdominal contents may be an effective method to reduce SSI.

The aim of this systematic review and meta-analysis is to determine whether the use of wound ring retractors reduces SSI rates after open appendectomy.

A systematic review of randomized controlled trials (RCTs) and meta-analysis of ring retractors was undertaken using the PRISMA guidelines. PubMed, Cochrane RCTs Central Register, CINAHL, and ISRCTN registry were searched for eligible studies. Only studies in which open appendectomy was …