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Purpose Bariatric surgery is on the rise worldwide. With the desired weight loss after bariatric surgery, patients frequently develop massive skin flaps resulting in the need of abdominoplasty. In these patients, this surgical technique is frequently associated with perioperative complications. Strategies to minimize complications are sought after. The objective of our study was to compare two different dissection techniques and their impact on postoperative outcome. Methods We included 66 patients in our study who underwent abdominoplasty after massive weight loss following bariatric surgery. In group 1, abdominoplasty was performed using the conventional technique of diathermia ( n  = 20). In group 2, abdominoplasty was performed using LigaSure Impact™ ( n  = 46). The duration of the surgical procedure and perioperative complications were recorded as primary endpoints. Secondary endpoints were length of hospital stay and assessment of additional risk factors. Results Baseline characteristics were comparable between groups. The duration of surgery was significantly shorter in group 2. Postoperative complications were significantly less frequent in group 2 ( p  = 0.0035). Additional risk factors, e.g., smoking and diabetes mellitus, were not associated with increased rates of perioperative complications. Conclusions The choice of technical device for dissection in abdominoplasty alone will not guarantee minimized complication rates. Yet, the utilization of LigaSure Impact™ in refined surgical techniques may facilitate reduced rates of complications, especially wound infections, and a shortened duration of surgery.

LigaSure Impact™ reduces complications after abdominoplasty in weight loss patients