Interlocking nail femur

What is the most common indication for interlocking nailing of the femur?

• Pathological fracture

• Comminuted femoral shaft fracture

• Subtrochanteric fracture

• Stress fracture of femur

Which of the following is a contraindication for closed intramedullary nailing of the femur?

• Polytrauma patient

• Open fracture Grade I

• Femoral shaft fracture with severe comminution

• Active infection at the fracture site

What is the main advantage of using interlocking nails over conventional intramedullary nails?

• Less surgical time

• No need for fluoroscopy

• Better rotational and axial stability

• No need for reaming

In femoral interlocking nailing, the preferred entry point in an adult for antegrade nailing is:

• Greater trochanter tip

• Piriformis fossa

• Intertrochanteric region

• Lateral cortex of femur

The most common complication of femoral interlocking nail is:

• Avascular necrosis of femoral head

• Infection

• Knee pain

• Limb shortening

Which structure is at risk during distal locking screw insertion in ILN femur?

• Femoral artery

• Popliteal artery

• Superficial femoral vein

• Saphenous nerve and vein

Reaming the femoral canal before ILN insertion is done to:

• Reduce bleeding

• Increase implant stability and fit

• Avoid thermal necrosis

• Prevent embolism