Anatomical and Ultrasound Study of the Mid-Femoral Sciatic Nerve and Its Division

Abstract OBJECTIVES Anatomical variations of the sciatic nerve were supposed as potential causes for incomplete blocks at level popliteal fossa. Therefore, we aimed to conduct an anatomical and ultrasound survey mid-femoral its division. BACKGROUND A regional block is a procedure analgesia anaesthesia lower extremity. Various approaches are used in clinical practice. However, demonstrates several regarding topography MATERIALS AND METHODS The study included twenty limbs ten adult cadavers. involved upper legs five healthy volunteers RESULTS was found distally piriformis muscle all our cadaveric specimens. It divided into two major branches (common peroneal tibial nerve) mean distance 68.1 ± 19.3 mm above crease. observed distances ranged widely from 35 113 mm. division entirely revealed using volunteers. CONCLUSION presents significant variations, which may cause block. Understanding anatomy appearance essential performing ultrasound-guided blocks.