Effectiveness of negative-pressure wound therapy with instillation compared to standard negative-pressure wound therapy and traditional gauze layer dressing for the treatment of acute traumatic wounds: A randomized controlled trial.

Background: Acute traumatic wounds often require prolonged healing time and hospitalization. Negative-pressure wound therapy with instillation and dwell time (NPWTi-d) has demonstrated effectiveness in accelerating patient healing over traditional NPWT, and its benefits are well established in the treatment of chronic infected wounds. However, randomized studies examining the use of NPWTi-d in acute traumatic wounds are scarce. This study aimed to examine the effectiveness of NPWTi-d compared to traditional gauze layer dressing and standard NPWT.

Methods: This single-center, randomized, pragmatic, controlled clinical trial included 120 adult patients with acute traumatic wounds from traffic accidents randomized to NPWTi-d (n = 39), NPWT (n = 41), and gauze dressing (n = 40). Following surgical debridement of the wound bed, all patients underwent definitive wound closure with delayed primary closure, skin grafting, or surgical flaps. The primary outcomes were wound closure time, number of surgical procedures, and hospital length of stay. The secondary outcomes were primary closure type, amputations, complications, and death.

Results: Wound closure time was significantly lower in patients with NPWTi-d compared to patients with NPWT and gauze dressing (6.1 vs. 10 vs. 11.7 days, respectively; p < 0.001). Patients with NPWTi-d had fewer surgical procedures than patients with NPWT and gauze dressing (3.0 vs. 3.5 vs. 6.2, respectively; p < 0.001). No significant differences in length of stay were observed among the groups.

Conclusions: In this study, patients with acute traumatic wounds who received NPWTi-d experienced shorter wound closure time and fewer surgical procedures than patients who received NPWT or gauze dressing.

Clinical Trial Registration: The current study is registered on the Brazilian Clinical Trials Registry (ReBec) platform under the name Comparison between Traditional Dressing, V.A.C. Dressing and V.A.C. Dressing with Instillation in Complex Wounds, ID nº RBR-658g535 at https://ensaiosclinicos.gov.br/rg/RBR-658g535.