Risk Factors for Wound Complications in Vulvar Cancer Surgery and Indications for Reconstructive Surgery

Objective: Vulvar cancer surgery is associated with high postoperative wound complication rates. Reconstructive surgery (RS) in vulvar cancer is generally reserved for surgery of extensive tumors or local recurrences. The primary aim of the study is to determine the incidence and risk factors for wound complications after vulvar cancer surgery. As a secondary aim, we compare the effects of primary closure (PC) versus reconstructive surgery on wound complications. Methods: In a retrospective cohort study in four gynecologic oncology centers in the Netherlands, patients undergoing surgical treatment (2018-2022) for vulvar cancer were included. Wound complications after PC and RS and risk factors associated with complications were analyzed by using logistic regression adjusting for confounds. Results: We included 394 women, 318 with PC and 76 with RS. The incidence of wound complications was 46.7%, with 42.4% of wound breakdowns comprising the majority of complications. The use of RS was associated with an increased risk of wound complications. Larger tumor size, proximity to the urethra, resection of the urethra during surgery, and perineal tumor location were additional risk factors for wound complications. However, after multivariate analyses, RS remained the only significant risk factor (OR 1.2; 95% CI 1.1-1.2). Conclusions: Risk factors for wound complications after vulvar cancer surgery include larger tumor size, proximity to the urethra, resection of the urethra during surgery, and perineal tumor location. RS is also associated with an increased risk of wound complications, probably related to case selection.