Abstract: Objective To evaluate the safety and feasibility of utilizing Kirschner wires (K-wires) in single-incision laparoscopic sleeve gastrectomy (SILSG).Methods Clinical data were retrospectively collected from 148 patients who underwent SILSG between May 2023 and May 2025,including 112 cases in which K-wires were used and 36 cases in which they were not.The two groups were compared in terms of operative duration,total length of hospital stay,hospitalization costs,postoperative complication rates (including anastomotic leakage and intra-abdominal hemorrhage),as well as pre- and postoperative changes in liver function and C-reactive protein (CRP) levels.Results The mean operative time in the K-wire-assisted group was （89.08±7.88） minutes,significantly shorter than that in the non-K-wire-assisted group [(109.72±10.36）minutes] (P<0.05).No statistically significant differences were observed between the two groups regarding gender,age,preoperative body mass index,postoperative complication rates,total hospital stay,or hospitalization costs (all P>0.05).There was no statistically significant difference between the two groups of preoperative alanine aminotransferase, aspartate aminotransferase, total bilirubin, direct bilirubin, C reactive protein (P>0.05).However,within each group,postoperative levels of alanine aminotransferase (ALT) and CRP were significantly elevated compared to preoperative values (all P<0.05).The laboratory test results obtained during the 7-day postoperative follow-up showed no statistically significant differences compared to preoperative values (all P>0.05).Conclusion The use of K-wires in SILSG is safe and feasible,while also taking into account both surgical effectiveness and aesthetics.

Key words: metabolic syndrome, sleeve gastrectomy, single-incision laparoscopic surgery, K-wire