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(a and b) Local anesthetic injection out of the subsartorial compartment for saphenous nerve block. The femoral artery (A) and vein (V) are seen below the sartorius (S). Local anesthetic injection is performed in the subsurtorial compartment between the femoral artery and the sartorius muscle (S) Cross sectional (3A) and longitudinal (3B) view of the femoral artery, vein and local anesthetic spread area (*) are also shown
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F1
Thereafter, an ultrasound-guided saphenous nerve block (linear 5-12MHz transducer/Vivid I; GE Healthcare, Waukesha, Wisconsin, USA) was conducted distal to the adductor canal, underneath the sartorius muscle [Figure 1a and b].
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