Research and Application of Continuous Inverted U-shaped Suture Technique in Skin Suture of Cesarean Section

Abstract

Objective: To explore the clinical effect of the continuous inverted U-shaped suture technique in skin wound suture during cesarean section. Methods: A total of 600 pregnant women who underwent cesarean section in our hospital from June 2024 to March 2026 were selected and randomly divided into a control group (n = 300) and a modified group (n = 300). The control group received an interrupted subcutaneous fat suture with 2/0 absorbable suture and a continuous intradermal suture with 4/0 synthetic absorbable suture; the modified group received an interrupted subcutaneous fat suture with 2/0 absorbable suture and a continuous inverted U-shaped suture with 4/0 synthetic absorbable suture. The postoperative incision evenness, Vancouver Scar Scale (VSS) score, incidence of subcutaneous nodules, complications, and maternal satisfaction were compared between the two groups. Results: The excellent and good rate of postoperative incision evenness in the modified group (98.0%) was significantly higher than that in the control group (85.3%). The VSS score [(1.2 ± 0.4) points vs (2.8 ± 0.7) points] and the incidence of subcutaneous nodules (0.7% vs 8.3%) in the modified group were significantly lower than those in the control group, with statistically significant differences (P < 0.05). There were no significant differences in the incidence of complications such as incision infection and fat liquefaction between the two groups (P > 0.05). Maternal satisfaction in the modified group (98.7%) was significantly higher than that in the control group (89.0%). Conclusion: The continuous inverted U-shaped suture technique can effectively improve the alignment and evenness of skin incisions in cesarean section, reduce scar hyperplasia and subcutaneous nodule formation, and offer better cosmetic results and patient satisfaction, making it worthy of clinical promotion and application.