Twenty-nine cases of the surgically treated distal femoral fracture were analyzed to compare internal fixatorw (AO DCS,Supracondylar nail, May anatomical plate),who were treated at Department of orthopaedic surgery, Taejon Saint Marys hospital from Jan. 1992 to Jun. 1994. The cases were classified according to AO classification and minmum 12 months(average:22.4 monthw) follow up.

Following results were obtained:

1.Male was more common than female, age distrbution was between 16 and 77 years old(average 40.4), abd the most common cause of the fracture was traffic accident.

2.The most comon type C by AO classification(type A 11 cases, type B 1 case, type C 17 cases).

3.According to Schatzkers criteria in the clincal result, type A,B were better resykt than type C, and severe soft tissue damage, comminution and joint involvement lead to unsatisfactory results.

4.Supracondylar nail was inadequate implant due to inferior clinical result(1 excellent, 2 good and 3 poor).

5.DCS had more sateafactory result than other internal fixators(supracondylar nail, May anatomical plate).

Based on the observations, the better results depend on the amount of initial trauma, early anatomical reduction, rigid internal fixation and exercise of the knee joint.