Efficacy of Surgical Injection Lumbar Erector Spinae Plane Block

"In group IE, transverse processes will be palpated before sewing the surgical incision by the surgery team. The local anesthetic solution will be administered after the needle contacts the transverse process and its location is confirmed by negative aspiration. Once the needle tip will be placed within the interfacial plane and after careful aspiration to rule out intravascular needle placement, 5 mL of solution will be injected the proper injection site. Local anesthetic solution will be injected at 4 levels along the surgical incision line. A dose of 0.25% bupivacaine 20 mL will be injected in each side (total 40 mL).~Tenoxicam 20 mg and a dose of 100 mg tramadol intravenously will be performed to all patients 30 min before the end of the surgery for postoperative analgesia."

"US guided ESP block will be performed. US probe will be placed longitudinally 2-3 cm lateral to the L3 transverse process. Erector spinae muscle will be visualized on the hyperechoic transverse process. The block needle will be inserted cranio caudal direction and then for correction of the needle 2 ml saline will be enjected deep into the erector spina muscle fascia. Following confirmation of the correct position of the needle 20 ml %0.25 bupivacaine will be administered for block in each side (total 40 mL).~Tenoxicam 20 mg and a dose of 100 mg tramadol intravenously will be performed to all patients 30 min before the end of the surgery for postoperative analgesia."