Clinical evaluation of static and dynamic veterinary intramedullary interlocking nailing technique for femoral fracture repairs in dogs

The study was conducted on 24 clinical cases of dogs with diaphyseal femoral fracture, divided into four groups consisting of six animals each. Group I animals with transverse diaphyseal femoral fracture were treated with static intramedullary interlocking nailing with one proximal and one distal bolt. Group II animals were treated with dynamic intramedullary interlocking nailing with two distal bolts. Group III animals with oblique diaphyseal femoral fractures were treated with static intramedullary interlocking nailing with one proximal and one distal bolt and ancillary cerclage wiring at the fracture site. Animals of group IV were treated with two distal bolts and an ancillary cerclage wiring at the fracture site. Bony union by negligible callus and early bone remodeling was the characteristic finding in groups I and III, where static intramedullary interlocking nailing was used. Bony union by large periosteal callus and early bone remodeling was characteristic finding in groups II and IV, where dynamic intramedullary interlocking nailing was used.