Aim: To perform a transverse abdominis release and posterior component separation procedure for the repair of a big incisional hernia. Material and Methods: This study is a retrospective analysis of a prospective dataset that reveals the Transversus Abdominis Release (TAR) technique performed by a single surgeon on patients presenting with large incisional abdominal wall hernias. A total of 50 patients were included in this study.Patients over 18 years of age who underwent incisional abdominal wall hernia surgery with the TAR technique were included. The inclusion criteria were patients with defects ≥10 cm in width or smaller defects associated with loss of domain (LOD) and those in whom the linea alba could not be closed with a standard retrorectus technique. Exclusion criteria included primary hernias and emergent cases. Results: The mean defect size was 12.4 cm with a standard deviation of 2.8 cm. Loss of domain (LOD) was observed in 30% of the patients. According to the EHS classification, 10% of the defects were categorized as W1, 50% as W2, and 40% as W3. The VHWG classification further categorized the hernias into Grade 1 (20%), Grade 2 (40%), Grade 3 (30%), and Grade 4 (10%).The average operative time was 180 minutes (SD = 45 minutes). Patients had an average postoperative length of stay (LOS) of 7.2 days (SD = 2.5 days). Synthetic mesh was used in 70% of cases, while biological mesh was used in 30% of cases. Regarding sutures, 60% were absorbable and 40% were non-absorbable. Additional procedures performed included panniculectomy in 20% of patients and partial omentectomy in 10%. Complications were relatively low, with intraoperative complications occurring in 6% of patients and postoperative complications in 20%.Postoperative pain was assessed using the Visual Analogue Scale (VAS) on the first postoperative day, with an average score of 4.5 (SD = 2.1). Follow-up evaluations were conducted at multiple time points: all patients were assessed on day 10 and at one month, 96% at three months, 90% at six months, 80% at one year, and 70% at two years. Conclusion: The study indicates that the TAR technique is effective for managing large incisional abdominal wall hernias, with a manageable complication rate and acceptable levels of postoperative pain. Recurrence was observed in 10% of patients, highlighting the importance of careful follow-up and patient selection. The findings support the TAR technique as a viable option for complex hernia repairs.