Complex femur fractures: treatment with the Wagner external fixation device or the Grosse-Kempf interlocking nail.

One hundred complex femur fractures were treated with the Grosse-Kempf interlocking nail and 35 were treated with the Wagner external fixation device. Retrospectively, we analyzed the results in the two groups to determine specific indications for the future use of these nails. The Grosse-Kempf nail, although a technically demanding procedure, achieved excellent overall end results in comminuted closed fractures, and in Type I, Type II, and some Type III open fractures after appropriate wound care. We found that the Wagner apparatus was a simple, easy device for obtaining initial fracture stabilization in contaminated Type III-B and Type III-C open fractures. It does, however, require substantial postoperative care; four cases required secondary intramedullary fixation. We found a high infection rate with secondary reamed intramedullary nailing after initial stabilization with the external fixator.