brachial plexus block

例句：

1. 1. This surgical procedure is commonly used for treating shoulder pain due to a torn rotator cuff.
   这种手术通常用于治疗肩部因撕裂的肩袖造成的疼痛。
2. 2. The patient was successfully treated with a brachial plexus block before undergoing the surgery.
   患者在手术前成功接受了臂丛神经阻滞治疗。
3. 3.During the operation, the surgeon made a small incision in the skin over the affected area and injected local anesthetics into the brachial plexus to numb the area.
   在手术中，外科医生在受影响区域的皮肤上做了一个小切口，并向臂丛神经注射局部麻醉药以麻木该区域。