Traumatic dislocation or fracture-dislocation of the hip is relatively uncommon, but high velocity accidents have increased its incidence in recent years. The purpose of this study was to review the result of the treatment and to evaluate the prognostic factor. We retroprospectively reviewed 28 patients with traumatic fracture-dislocation of the hip between October, 1993 and March, 1996. 21 were males and 7 females. The mean age was 33.5 years(range, 11 to 67 years). Average follow-up was 18 months(range, 13 to 28 months). Exellent or good results were obtained in 19 patients(68%) by the criteria of Epstein. The complications were followings 2 cases of avascular necrosis and 1 case of osteoarthritis. Factors associated with a good prognosis included an early reduction, low level of initial trauma, abscence of associated injury.