Background: Complex abdominal surgeries, necessitated by severe conditions like cancer, trauma, and inflammatory diseases, require advanced expertise and precise, multifaceted techniques to restore function and appearance. This review systematically assesses the outcomes of combined reconstructive techniques, such as mesh reinforcement, component separation, flap reconstruction, and laparoscopic-assisted repairs, in achieving optimal functional and aesthetic results. Methodology: RCTs, cohort studies, and case series on reconstructive techniques in complex abdominal surgeries for adults were included. A comprehensive search in PubMed, Cochrane Library, and Embase used primary and secondary keywords along with MESH terms. Studies on pediatric patients, non-English publications, and those lacking outcome data were excluded. Results: Autologous tissue grafting and abdominoplasty demonstrated the highest success rates at 100%, with flap reconstruction and composite tissue allotransplantation also showing strong results at 92% and 95%, respectively. Laparoscopic-assisted repairs shows lower success rate at 77% and mesh reinforcement and Botox-assisted repairs shows 70-80% of success outcomes. General satisfaction rates for abdominal aesthetics in these surgeries range from 75% to 95%, reflecting varied patient satisfaction with aesthetic outcomes. Conclusion: Reconstructive techniques success rate for complex abdominal surgeries vary. Autologous grafting and abdominoplasty achieved high rates and other methods showed promising results but varied efficiency.