Comparison of Onlay Mesh Repair and Sublay Mesh Repair in Umbilical Hernia Surgery

Umbilical hernia is a common condition that is frequently treated with surgical mesh repair to reduce recurrence rates. Among the commonly used techniques, onlay mesh repair and sublay mesh repair are widely performed; however, there is ongoing debate regarding their comparative effectiveness and safety. The aim of this study is to compare onlay mesh repair and sublay mesh repair in patients undergoing elective umbilical hernia surgery, with respect to postoperative complications, recurrence rates, operative outcomes, and length of hospital stay. By evaluating clinical outcomes associated with each technique, this study seeks to contribute evidence to guide the selection of the most appropriate surgical approach for umbilical hernia repair.

Inclusion Criteria: * Patients aged 18 to 90 years * Patients diagnosed with small or medium-sized umbilical hernia according to the European Hernia Society (EHS) classification * Patients scheduled for elective umbilical hernia surgery * Patients who provide written informed consent Exclusion Criteria: * Patients younger than 18 years or older than 90 years * Patients undergoing emergency umbilical hernia surgery * Patients with bowel obstruction * Patients with chronic kidney failure * Patients with a history of previous abdominal surgery involving the stomach, duodenum, small intestine, or colon