ESPB and ACB in Knee Arthroplasty

After the necessary asepsis and antisepsis procedures, the linear ultrasound probe was placed parasagittally 2-3 cm lateral to the spinous process at the L3 or L4 level and the transverse process was visualized. The peripheral block needle (85 mm B Braun Stimuplex A) was advanced in plane up to the transverse process and 10 ml 0.5% bupivacaine hydrochloride 10 ml 0.9% isotonic NaCl mixture was applied on the erector spina muscle.

After the necessary asepsis and antisepsis procedures, the linear ultrasound probe was placed in the middle between the medial condyle and the SIAS, and the superficial femoral artery (FSA) was visualized under the sartorius muscle. By following the FSA distally, the point where the sartorius muscle crosses the adductor magnus muscle, which is the beginning of the adductor canal, was found and the saphenous nerve was visualized hyperechoic in the anterolateral aspect of the FSA. 20 cc 0.5% bupivacaine hydrochloride was applied