Unstable fractures of the pelvis treated with a trapezoid compression frame.

Sixteen patients with unstable pelvic fractures were treated by early reduction and fixation of the pelvic ring with a trapezoid compression frame. This provided firm fixation of the fractured pelvis in all but one patient. External fixation afforded relief from pain and greatly facilitated nursing. At follow-up, all the fractures but one had healed in the position secured initially by the frame.