A consecutive series of 40 patients, who sustained 42 ipsilateral pelvic and femoral fractures, is reported. There were eight (26.6%) traumatic neurological deficits and three open femoral fractures. Two multiply injured patients died in the postraumatic period because of the severity of their injuries. No associated vascular injuries could be identified. All but two fractures of the femur, 8 of the 15 fractures of the pelvic ring and 17 of the 30 fractures of the acetabulum were treated by internal fixation. In 26 patients internal fixation was performed on both fracture components (in 17 patients this was done under the same period of anaesthesia). Postoperatively, a deep venous thrombosis in three patients, one deep wound infection and five (18.5%) iatrogenic neurological deficits had to be notified. In this series we could not identify any specific associated injuries and complications as known for the floating knee or the floating elbow. The term floating hip is inprecise and misleading, and its use is not recommended. The treatment of this fracture-combination follows the guidelines established for the individual lesions.