Abstract:

Objective　To observe effect of "reamed intramedullary nail and ligament reconstruction" to treat knee instability (combined with cruciate ligament injury) femoral shaft nonunion.　Methods　10 cases with femur bone nonunion combined with cruciate ligament injury were treated. The effect of stability of the knee to the femoral shaft fracture healing was analyzed. The femoral shaft nonunion caused by knee instability was treated with "the original implant removal + reamed intramedullary nailing of femoral shaft reseat + cruciate ligament reconstruction ".　Results　Ten patients were followed up with the healing rate being 100%. Tohner-Wrnch standard assessment was excellent, and Lysholm knee function score excellent rate was 100%.　Conclusion　Knee instability is an important factor of femoral shaft fracture nonunion; the treatment of femoral shaft fractures must consider whether knee instability exists.” Removal of original implant, fixation with reamed intramedullary nail and cruciate ligament reconstruction “is a reliable method for treatment of the femoral shaft nonunion combined with a cruciate ligament injury.

Key words: Bone nonunion, Cruciate ligament rupture, Knee instability, Reamed intramedullary nail, Cruciate ligament reconstruction