The clinical outcome of fifteen patients with traumatic posterior hip dislocations was reviewed. The mean follow-up period was 4.3 years. There were 14 males and one female, with a mean age at dislocation of 48.9 years. All radiographs were reviewed and graded based on the system devised by Thompson and Epstein in 1951, and all patients were reviewed clinically and radiographically and classified as excellent, good, fair or poor, based on the system described by Stewart and Milford (1954) and expanded by Epstein (1974). There were seven patients (46.7%) with type I, two (13.3%) with type II, four (26.7%) with type III, one (6.7%) with type IV and none with type V. Four patients (26.7%) were rated as having excellent results at the latest follow-up, six (40%) had good; one (6.7%) had fair and four (26.7%) had poor. Twelve patients (80%) had multiple injuries. The incidence of Knee injuries was especially very high (40%). Two patients (13.3%) with type I or III developed avascular necrosis in the series.