Objective: To compare the results of the operative treatment and the closed treatment of displaced acetabular fractures. Methods: There were 34 patients in the study including 3 posterior wall, 9 posterior column, 3 anterior column, 1 transverse fracture, 4 transverse fractures associated with posterior wall, 4 both columns, 7 posterior wall associated with posterior column and 3 the T-shaped according to Judet-Letormal classification. 4 cases of the simple fractures and 12 cases of the complicated fracture...