A 4 year-old child with posterior hip dislocation and simultaneous subtrochanteric and anterior column fracture

Traumatic hip dislocation is an uncommon injury in children and consists of less than 5% of their dislocations; but it’s one of the real orthopedic urgency. Its mechanism is low energy trauma in below 6 years old and high energy trauma above it. One of the common associated complications with hip dislocation is posterior wall injuries but column fractures are very rare. We reported an uncommon case of posterior hip dislocation with simultaneous subtrochanteric fracture and anterior column fracture، in which close reduction was impossible. Because of sever associated injuries surgery was done with 48 hours delay including open reduction of dislocation and fracture، and internally fixation of the subtrochanteric fracture with 3. 5mm locked plate. In 6 month follow up that was done in ICU، range of motion and stability was good and union sign was visible on radiography. After 15 months the patient general conditions was good and no sign of avascular necrosis was seen