Introduction & Objective: Jaundice is the most clinical finding in the neonatal period. Prolonged indirect fractures of the shaft of the femur are among the most common fractures encountered in orthopedic practice. Since the femur is the largest bone of the body and one of the principal loads bearing bone in the lower extremity, fractures can cause prolonged morbidity and extensive disability unless treatment is appropriate. In the recent years interlocking intramedullary nailing has become the technique of choice which decreases the complications and the duration of morbidity. In our country no study has bean achieved to compare this technique and traditional plating method. The aim of our study was to compare the time needed for fracture :::::union::::: of these two techniques.

Materials & Methods: This study was a prospective clinical trial. 48 cases were randomly divided in two groups and were undergone plating method and interlocking intramedullary nailing. The groups were followed for bone :::::union::::: for at least one year. The information were analyzed by statistical exams (t-test, chi square , Cox regression , Kaplan meier )

Results: Interlocking intramedullary nailing technique group showed a decreased :::::union::::: time (14.4 weeks) compared with plating technique (19.6weeks) (P<0.001). The :::::union::::: time in open fracture in two groups were significantly increased (P<0.02).

Conclusion: Interlocking technique is seriously recommended for treatment of femur shaft fractures because of decreased fracture :::::union::::: time and rapid rehabilitation and providing the facility for this technique is cost effective for all orthopedic surgery centers.