A series of 72 distal femur fractures was treated with dynamic condylar screw (DCS). Open reduction and internal fixation with DCS was done in all cases. After a follow-up period of 9 to 27 months (mean, 14.6 months) there were 3 infection cases; 2 were superficial and 1 deep infection. Five cases of nonunion with implant failure and 3 cases of delayed union were also noted. The union time was 18.6 ± 5.9 weeks and the union rate was 88.9%. The range of motion of the knee was analysed: 85.7% of the supracondylar fracture group had 90 degrees or more, but only 69.2% of supra- and intercondylar fracture group and 62.5% of old fracture group had a range of motion of 90 degrees or more. Twenty-six patients had posterior splint support after the operation and only 60.9% had good results. We concluded that DCS had characteristics of easy application, precise seating and interfragmental compression. It is an effective and technically achievable procedure for treating distal femur fracture.