Blocks of the lower extremity
The posterior approach to the lumbar plexus, first described by Chayen et al. in 1976, is called the psoas compartment block… In contrast to the psoas compartment block, the femoral nerve block is a caudad, ventral approach to parts of the lumbar plexus... The location between the medial vastus and sartorius muscles is palpated some 2 to 4 cm superior and medial to the patella… With the patient‘s leg rotated outwardly and abducted slightly, the sinewy origin of the long adductor muscle is felt. The puncture site is located… Proximal sciatic nerve blocks target the nerve where it emerges from the lower pelvis. Here, various means of access are possible… Distal sciatic nerve blocks reach the sciatic nerve in a region where the courses of the tibial and common peroneal nerves are still so close…
Psoas block
Femoral nerve block
Saphenous nerve block
Obturator nerve block
Proximal sciatic nerve blocks
Distal sciatic nerve blocks
