SOFT Block Versus Spinal Anesthesia in Patientsusing Ilizarov External Fixator

needle will be introduced medial to the femoral vein and 3 cm below the skin where 15 mL of bupivacaine 0.25% injected. the obturator nerve, the probe shifted medially, superior to the needle, and directed cranially to the pectineus muscle . Needle withdrawn to the subcutaneous tissue and redirected using out-of-plane toward the deep surface of pectineus, 10 mL of bupivacaine 0.25%will be injected. The sciatic nerve, we use the curvilinear probe, inferior to the needle, and tilted the probe to get the clearest image of the sciatic nerve.The needle will be inserted then withdrawn subcutaneously and directed by an in-plane toward the sciatic nerve deep to the inferior border of the quadratus femoris muscle.20 mL of bupivacaine 0.25% will be injected

patients will receive spinal anesthesia with hyperbaric bupivacaine 0.5% (7.5-10mg). This will be administered via a 25-G spinal needle at L4-L5 or L3-L4 with the patient in the sitting position under complete aseptic conditions.