LKnative – Lateral femoral cutaneous nerve block

Indications

Cutaneous analgesia of the lateral thigh

Skin harvesting

Postoperative analgesia after hip fracture surgery

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Anatomy: The trajectory of the lateral femoral cutaneous nerve

The lateral femoral cutaneous (LFC) nerve emerges from the lateral margin of the psoas major and runs across the anterior surface of the iliacus below the iliacus fascia

Just medial to the anterior superior iliac spine (ASIS) the LFC nerve runs underneath the inguinal ligament, pierces the iliac fascia and runs obliquely across the sartorius muscle from medial to lateral sandwiched between the sartorius muscle fascia and the fascia lata

Approximately 2-3 cm below the ASIS, the LFC nerve pierces the fascia lata, splits in two branches and innervates the lateral thigh from the greater trochanter to the knee (see next page)