When performing a femoral block, the LA must be deposited only:


A) Underneath the lata fascia

B) Underneath the iliac fascia

C) Lateral to the femoral artery

D) Between psoas muscle and fascia lata




The success of this block is the deposition of the LA under the iliac fascia to get in contact with the femoral nerve, regardless of being next to the femoral artery.

The identification of the femoral artery is an important landmark, but it is essential to identify the fascia lata, iliopsoas muscle and its fascia, because injection in a wrong fascial sheath may not result in spread of the local anesthetic in the desired plane.