Objective To analyze the clinical therapeutic effect of close reduction and percutaneous Kirschner wire fixation in treating humeral supracondylar fracture in children.  Methods We retrospectively analyzed 46 children who had humeral supracondylar fracture treated in our department from August 2000 to October 2007. They were 1.6 to 8 years old (mean age: 6 years and 2 months). Twenty-five had extension-ulnar type humeral supracondylar fracture and 21 deviation-ulnar type. According to Garland typing

7 children had type I fracture

11 type Ⅱ and 28 type Ⅲ. Closed reduction was performed guided by C-arm X-ray machine when the patients were under general anesthesia. Then the fracture was percutaneously fixed with 2 or 3  Kirschner  wires of 1.5 mm

and the elbow and wrist joints were fixed in the functional position with upper limb plaster.  Results All patients were followed up for average 10 months (3-36 months). All patients obtained bone union. The mobility of elbow joint at the injured side: the average extending angle is 0° and the average flexion angle is 135°. No Volkmann contracture or iatrogenic nerve injury occurred

but cubitus varus deformity happened in one case. Conclusion Close reduction and percutaneous Kirschner wires fixation for humeral supracondylar fracture in children possess the advantages

i.e. small injury and stable bone fixation

in addition

can prevent Volkmann contracture and achieve good elbow joint function recovery. However

that the ulnar  deviation is not corrected during fracture reduction may lead to cubitus varus deformity.