Pericapsular Nerve Group Block in Hip Arthroplasty

"The regional block will be performed with the patient in the supine position under complete sterile technique. A low frequency curvilinear ultrasound probe will be initially placed in a transverse plane over the anterior inferior iliacspine (AIIS) and then aligned with the pubic ramus by rotating the probe counterclockwise approximately 45 degrees. In this view, the iliopubic eminance(IPE), the iliopsoas muscle and tendon, the femoral artery, and pectineus muscle will observed.~A 22-gauge, 80-mm needle will be inserted from lateral to medial in an in-plane approach to place the tip in the musculofascial plane between the psoas tendon anteriorly and the pubic ramus posteriorly after local infiltration of the site of the block with 3 ml lidocaine 2%. Following negative aspiration,the normal saline solution will injected in 5-mL increments while observing for adequate fluid spread in this plane."