P-003 LATERAL ABDOMINAL HERNIAS: A REGISTRY-BASED MULTIVARIATE ANALYSIS OF SURGICAL TECHNIQUES AND OUTCOME

Aim Data on lateral incisional hernia (LAH) repair is scarce. The operative therapy is challenging due to complex anatomy and bulging due to previous nerve lesions. Data concerning medial hernias are not necessarily transferable. Therefore, this study evaluates the status-quo of LAH repair, compares different strategies, and identifies risk factors for complications and adverse outcomes. Materials and Methods The German Herniamed registry was screened for LAH. Data from patients operated on between 01–05–2009 and 05–31–2020, resulting in 6,306 cases. Data analysis focused on patient-specific, surgery-related factors, complications, and outcome. In addition, a logistic regression analysis of multiple variables was conducted. Results Laparoscopic IPOM (27.9%) and open sublay (38.1%) were the most common surgical procedures. Intraoperative complications were more common in laparoscopic IPOM compared to open sublay (1.8% vs. 0.9%; p Conclusion LAH repair is especially challenging due to its anatomical complexity, rareness, and weak management evidence. This study adds registry-based data with the largest number of cases yet published. Due to the complexity and the flimsy evidence of treatment options, lateral incisional hernias should be treated in specialized hernia centers. In addition, further evaluation of repair techniques is needed, and particular focus should be put on a proper localization classification and defect size (both according to EHS).