Topic Highlight
Copyright ©2014 Baishideng Publishing Group Inc.
World J Orthop. Jul 18, 2014; 5(3): 225-232
Published online Jul 18, 2014. doi: 10.5312/wjo.v5.i3.225
Table 1 Overview of block characteristics
BlockLandmarksUltrasound guidanceCatheter techniqueBenefits
Lumbar plexus blockSpinous process iliac crest (L4) needle insertion 4 cm from midlineParamedian sagittal L3-L5 identification of psoas muscle needle insertion 4cm from midlineNot widely used not practicalSome evidence for benefit in regard of early recovery and opioid consumption
Femoral nerve blockInguinal ligament inguinal crease femoral arteryTransverse direction femoral crease identification of femoral artery and femoral nerveSuperior to single shot after 24 hEasy to learn safe to use
Saphenous nerve blockUnited States guidance preferredMidthigh identifying sartorius muscle anteromedial to femoral arteryEasy to learn safe to use
Sciatic nerve blockClassic approach: greater trochanter posterior superior iliac spine needle insertion 4 cm distal to the mid of the drawn lineAnterior approach: proximal end of medial thigh nerve beneath aducctor magnus muscle and femurFNB catheter neccesary classic approach not well suited for cathetersClassic approach - easy to perform - high success rate