Treatment of type IIIa open fractures with ilizarov fixation and delayed primary closure in high-velocity gunshot wounds

A total of 142 patients with 163 Gustilo-Anderson type IIIa limb fractures resulting from high-velocity gunshot wounds were treated with primary delayed closure and Ilizarov fixation in our department between 1988 and 1998. Average follow-up was 72.4 months. The average union period in fractures without bone loss was 16.8 weeks. It took 2 months for each 1 cm of bone defect to heal in fractures with bone loss. All fractures healed with good anatomic alignment and functional outcomes. Complications included pin-track infection in 72 fractures (50.7%), post-traumatic osteomyelitis in 5 tibial fractures without bone loss (3.1%), delayed union in 25 fractures (15.3%), nonunion in 10 (4 with bone loss) fractures (6.1%), and refracture in 4 fractures (2.4%). Our results indicate that type IIIa limb fractures caused by high-velocity gunshot wounds can be treated with Ilizarov fixation and primary delayed closure with a low overall complication rate and a remarkably low infection rate.