Comparing the effect of tissue adhesive and suturing material on collagen I/III ratio in abdominal skin wounds: an experimental study

Background:The skin closure procedure should be technically simple, acceptable, quick, and cost-effective. Sutures remain the technique's mainstay, however tissue adhesive is becoming more used in clinical practice. Collagen ratios of types I and III play a significant role as postoperative wound healing parameters. Here, the authors aim to examine the collagen I/III ratio of tissue adhesive vs. non-absorbable sutures for abdominal skin closure in Wistar albino rats.Material and methods:The authors allocated 20 rats into four experimental groups. Wounds in groups 1 and 3 were sealed with tissue adhesive (cyanoacrylate), while those in groups 2 and 4 were closed using suture material (monofilament non-absorbable nylon). Groups 1 and 2 were sacrificed on postoperative day (POD) 4, while those in groups 3 and 4 were euthanized on POD 7. Skin samples (1x0.5 cm) were collected for analysis, and the collagen I/III ratios were determined using immunohistochemistry staining techniques.Results:The levels of collagen I and III expression did not exhibit statistically significant differences between tissue adhesive and nylon suture groups at either POD 4 (P=0.052, P=0.513) or POD 7 (P=0.125, P=0.80). Similarly, the collagen I/III ratio did not significantly differ between the two groups at POD 4 (1.23 +/- 2.26 vs. 0.70 +/- 0.24; P=0.47) or POD 7 (0.68 +/- 0.96 vs. 0.77 +/- 1.22; P=0.857).Conclusions:There were no statistical significance difference in collagen I/III ratio between the tissue adhesive and suture material groups, suggesting that the choice of wound closure material may not influence the abdominal skin closure.