A femoral nerve block is useful for superficial and deep surgeries performed on the anterior thigh. A slight variation is the “3-in-1” block, as one block at the femoral crease could theoretically provide analgesia to the femoral, lateral femoral cutaneous, and obturator nerves. In practice, however, obturator nerve distribution is often missed and an additional posterior lumbar plexus block should be performed for reliable analgesia of all three nerves. A femoral nerve block can be combined with additional lower extremity peripheral blocks, such as a sciatic nerve block, to provide complete analgesia for operations on the lower leg and foot and for prolonged continuous catheter analgesia after surgery on the knee or femur. This chapter discusses anatomy, nerve block techniques, indications, contraindications and complications of a femoral nerve block.
Keywords3-in-1 block Femoral nerve Inguinal ligament Femoral artery Femoral vein Fascia iliaca
- 2.Buckenmaier C, Bleckner L. Military advanced regional anesthesia and analgesia handbook. Chapter 15. Washington, DC: Borden Institute; 2009.Google Scholar
- 3.Hadzic A. Hadzics textbook of regional anesthesia and acute pain management. Chapter 33A. New York: McGraw-Hill Education; 2017.Google Scholar