Purpose: After closure of laparotomies, sutures may pull through tissue due to too high intra-abdominal pressure or suture tension, resulting in burst abdomen and incisional hernia. The objective of this study was to measure the suture tension in small and large bites with a new suture material. Methods: Closure of the linea alba was performed with small bites (i.e., 5 mm between two consecutive stitches and 5 mm distance from the incision) and large bites (i.e., 10 mm × 10 mm) with Duramesh™ size 0 (2 mm) and PDS II 2-0 in 24 experiments on six porcine abdominal walls. The abdominal wall was fixated on an artificial computer-controlled insufflatable abdomen, known as the ‘AbdoMan’. A custom-made suture tension sensor was placed in the middle of the incision. Results: The suture tension was significantly lower with the small bites technique and Duramesh™ when compared with large bites (small bites 0.12 N (IQR 0.07–0.19) vs. large bites 0.57 N (IQR 0.23–0.92), p < 0.025). This significant difference was also found in favour of the small bites with PDS II 2-0 (p < 0.038). No macroscopic tissue failure was seen during or after the experiments. Conclusion: Closure of the abdominal wall with the small bites technique and Duramesh™ was more efficient in dividing suture tension across the incision when compared to large bites. However, suture tension compared to a conventional suture material was not significantly different, contradicting an advantage of the new suture material in the prevention of burst abdomen and incisional hernia during the acute, postoperative phase.

Biomedical sensor, Incisional hernia, Laparotomy closure, Suture tension
dx.doi.org/10.1007/s10029-020-02140-7, hdl.handle.net/1765/125036
Hernia: the journal of hernias and abdominal wall surgery
Department of Surgery

Yurtkap, Y. (Y.), den Hartog, F.P.J. (F. P.J.), van Weteringen, W, Jeekel, J, Kleinrensink, G.J, & Lange, J.F. (2020). Evaluation of a new suture material (Duramesh™) by measuring suture tension in small and large bites techniques for laparotomy closure in a porcine model. Hernia: the journal of hernias and abdominal wall surgery. doi:10.1007/s10029-020-02140-7