Fig. 2From: A comparative study between continuous epidural analgesia, ultrasound guided continuous femoral nerve block (CFNB), and ultrasound guided continuous adductor canal block (ACB) for post-operative pain management after total knee replacement (TKR)Spread of local anaesthetic before catheter advancement in the adductor canal. Femoral Artery (FA), Saphenous Nerve (SN)Back to article page