Interrupted subcuticular suture spacing during linear wound closures and the effect on wound cosmesis: a randomized evaluator-blinded split-wound comparative effectiveness trial.

We found that 1-cm suture spacing was not significantly associated with improved overall cosmetic outcome compared with 2-cm suture spacing when evaluated by blinded observers or the patients themselves. Our results support the use of either interval. What is already known about this topic? Surgeons have differing opinions on the ideal frequency of subcuticular sutures for optimizing cosmetic outcomes and minimizing suture reactions. The effect of subcuticular suture spacing on wound cosmesis has not been previously explored in the literature. What does this study add? There was no significant difference in cosmetic outcome between 1-cm suture spacing and 2-cm suture spacing when evaluated by blinded observers and patients. Dermatology surgeons can use 2-cm suture spacing for increased efficiency, without significantly different cosmetic outcomes, detected by blinded observers and patients.