What does the lateral femoral cutaneous nerve innervate?

The lateral cutaneous nerve of the thigh (also called the lateral femoral cutaneous nerve) is a cutaneous nerve that innervates the skin on the lateral part of the thigh.

Where is the lateral femoral cutaneous nerve LFCN?

The lateral femoral cutaneous nerve (LFCN) is a pure sensory nerve that arises from the L2 and L3 spinal nerve roots and travels downward lateral to the psoas muscle, and then crosses the iliacus muscle.

What is a femoral cutaneous nerve block?

A lateral femoral cutaneous nerve block is an injection of a local anesthetic and steroid to block the nerves that influence pain in the upper leg.

Where does the lateral femoral nerve block begin?

Lateral Femoral Cutaneous Nerve Block. After emerging from the lateral border of the psoas major muscle, it courses inferiorly and laterally towards the anterior superior iliac spine (ASIS). It then passes under the inguinal ligament and over the sartorius muscle into the thigh, where it divides into two branches (anterior and posterior).

Where to place a USRA-lateral cutaneous nerve block?

Position the patient supine with the leg extended in the neutral position. Expose the groin and mark the anterior superior iliac spine (ASIS). After skin and transducer preparation, place a linear transducer with the appropriate frequency range (10-12 MHz) immediately medial to the ASIS along the inguinal ligament.

Where is the needle inserted in an axillary plexus block?

Systematic scanning to identify the nerve and a separate injection of local anesthetic are usually required for a successful axillary brachial plexus block. The needle is inserted in-plane from the anterior aspect and directed toward the posterior aspect of the axillary artery ( Figure 7 ).

What kind of nerve block is used for sciatic nerve surgery?

The saphenous nerve block is most commonly used in combination with a sciatic nerve block or popliteal block to complement anesthesia of the lower leg for various vascular, orthopedic, and podiatric procedures. The saphenous nerve is a terminal cutaneous branch of the femoral nerve.