The Efficacy of Combined Intrathecal Morphine and PENG Block on Postoperative Pain in Hip Arthroplasty

Patients will undergo ultrasound-guided block using a linear or convex ultrasound probe in the supine position before intrathecal bupivacaine. The block procedure will involve the use of a local anesthetic solution (10-20 ml of 0.25% bupivacaine and 2 mg dexamethasone) and a 22 Gauche 80 mm block needle. Subsequently, intrathecal bupivacaine will be administered at the L3-L4 intervertebral level with 10-15 mg bupivacaine while the patient is in a sitting position.The patient controlled analgesia device with morphine will be adjusted as infusion: 0 ml/h, bolus: 1 mg/h, lockout period: 10 min.

Patients will receive intrathecal bupivacaine and morphine without Pericapsular Nerve Group block. Intrathecal drugs will be administered at the L3-L4 intervertebral level by adding 10-15 mg bupivacaine with 100 μg of morphine. The patient controlled analgesia device with morphine will be adjusted as infusion: 0 ml/h, bolus: 1 mg/h, lockout period: 10 min.

Patients will undergo ultrasound-guided block using a linear or convex ultrasound probe in the supine position before intrathecal drugs. The block procedure will involve the use of a local anesthetic solution (10-20 ml of 0.25% bupivacaine and 2 mg dexamethasone) and a S22 Gauche 80 mm block needle. Subarachnoid block will be administered at the L3-L4 intervertebral level by adding 10-15 mg bupivacaine with 100 μg of morphine. The patient controlled analgesia device with morphine will be adjusted as infusion: 0 ml/h, bolus: 1 mg/h, lockout period: 10 min.