Serratus Anterior Plane Block Versus Pericapsular Nerve Group Block for Shoulder Surgery

The latissimus dorsi muscle between the midaxillary line and the posterior axillary line will be located under ultrasound guidance. The needle will be inserted into the plane from top to bottom until the serratus anterior surface, and the injectate will be slowly administered.

"Ultrasound-guided PENG block will be performed under strict aseptic precautions and patient's arm will be placed in external rotation and abducted at 45 degrees. A linear ultrasound probe will be placed longitudinally between the coracoid and the humeral head. After defining the humeral head, the tendon of the subscapular muscle and the deltoid muscle over it, the needle will be inserted using the in plane technique. When the needle will have passed through the deltoid muscle and touched the subscapularis tendon, a bone-like hard tissue will be felt and the needle could not be advanced further. The needle tip will be placed Between the deltoid muscle and subscapularis tendon, and the injectate will be slowly administered."