Procedure Femoral Nerve Infiltration

Position and anatomical landmarks

The patient is positioned in the supine position with his hands under his head. The inguinal ligament and femoral artery are located and palpated. The insertion site is marked laterally to the femoral artery and 2.5 cm into the inguinal ligament.


After sterile preparation of the area, the needle (22-25-G) is inserted (under ultrasound guidance) By means of a finger on the lateral side, the femoral artery is held medially.


The thermocouple is connected to the needle. The location of the nerve is confirmed when the patient experiences reproducible paraesthesia in the upper leg by means of stimulation with 50 Hz, 0.5 V. Thereafter, 2 ml bupivacaine 0.25% with 40 mg corticosteroids in depot is injected.


  • The most serious complication after the injection is infection.
  • Small subcutaneous bleedings may result in a temporary increase in pain after the injection.



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