Early free flap reconstruction of blast injuries with thermal component

Modern warfare has seen advances in both weaponry and personnel protective material, thus allowing for better survival of injured individuals. As a result, the medical system is faced with an increasing number and diversity of non-life threatening wounds, to the extremities especially, sustained by multiple mechanisms. These wounds have a thermal injury component regardless of the mechanism, and there is often a delay in them being definitively treated, thus affecting final cosmetic and functional outcomes. Fourteen patients presented to our institution after sustaining blast injuries of different etiologies. Time of admission was between 0-10 days, and time of microvascular reconstruction after initial serial debridement was between 5-28 days. All patients were found to be infected with multiple organisms upon admission. Five patients were reconstructed with free vascularized skin flaps, three with osseous and osseocutaneous free flaps, four with free latissimus dorsi muscle flaps and two by toe-to-hand transfer. The follow-up period ranged from 4 to 52 weeks (mean, 26.7 weeks). Eleven free flaps survived completely. Two patients presented with minor dehiscence and were treated with secondary closure. Two patients developed a hematoma under the flap that required evacuation. One flap failed due to arterial thrombosis. Early free flap reconstruction proves to be a good option for the early reconstruction of blast injuries with thermal components after serial debridement and tangential excision of the wound beds.