Timing of Flap Coverage With Respect to Definitive Fixation in Open Tibia Fractures.

Area of Science:

• Orthopaedic trauma surgery
• Infectious disease epidemiology
• Microsurgery and reconstructive surgery

Background:

• Type III tibial fractures are severe injuries often requiring complex surgical management.
• Nosocomial wound infections are a significant complication, impacting patient outcomes and healthcare costs.
• The timing of soft-tissue coverage relative to fracture fixation is a potential modifiable factor in infection prevention.

Purpose of the Study:

• To investigate the association between delays in definitive fixation and flap coverage and the risk of nosocomial wound infection in patients with type III tibial fractures.
• To identify critical time intervals in the management of these complex fractures that influence infection rates.

Main Methods:

• Retrospective analysis of 296 patients with Gustilo type III open tibial fractures requiring flap coverage from 14 U.S. trauma centers.
• Multivariate regression models were used to assess the impact of time from injury to coverage, debridement to coverage, and definitive fixation to coverage on infection risk.
• Patient demographics and surgical details were collected and analyzed.

Main Results:

• 32.4% of patients developed a wound infection.
• The time from definitive fixation to flap coverage was the most significant predictor of subsequent infection (OR 1.04, 95% CI 1.01-1.08, P=0.02).
• Flap failure was strongly associated with infection (OR 6.83, 95% CI 3.26-14.27, P<0.001).

Conclusions:

• Optimizing the timing between definitive fixation and flap coverage is crucial for reducing infection rates in type III tibial fractures.
• Dedicated orthoplastic teams can improve care coordination and potentially lower infection rates.
• Early and coordinated management involving both fracture stabilization and soft-tissue reconstruction is key to successful outcomes.