Ultrasound Guided Interscalene, Suprascapular and Anterior Glenoid Nerve Blocks on Diaphragmatic Excursion and Analgesia Following Arthroscopic Shoulder Surgery

The Effect of Ultrasound Guided Interscalene, Suprascapular and Anterior Glenoid Nerve Blocks on Diaphragmatic Excursion and Analgesia Following Arthroscopic Shoulder Surgery: A Prospective Randomized Controlled Study

This study aims to evaluate the diaphragmatic movement and postoperative analgesia following anterior glenoid, suprascapular, and interscalene nerve blocks in patients undergoing elective arthroscopic shoulder surgery.

Arthroscopic shoulder surgery is a key approach for diagnosing and treating many shoulder disorders. Nevertheless, 30-70% of patients often experience moderate to severe pain, especially at 48 h after the operation, which affects rapid recovery.

The interscalene brachial plexus block (ISB) remains the gold standard for providing analgesia after shoulder surgery. Suprascapular nerve block (SSNB) is the most commonly used regional nerve block. Seventy percent of the sensory nerve fibers of the shoulder joint are innervated by the suprascapular nerve (SSN), with the supraspinatus and infraspinatus being directly innervated by the SSN.

Inclusion Criteria:

• Age from 21 to 65 years.
• Both sexes.
• American Society of Anesthesiologists (ASA) physical status I or II.
• Scheduled for arthroscopic shoulder surgery.

Exclusion Criteria:

• Patient's refusal to participate.
• Patients with a history of allergy to local anesthetics.
• Patients with a history of chronic use of painkillers.
• Patients presented with mental dysfunction.
• Patients with coagulation disorders.
• Patients presented with skin or soft tissue infection at the proposed site of needle Insertion.
• Pregnant Patients.
• Patients with Chronic Obstructive Pulmonary Disease (COPD) or a Body Mass Index (BMI) of more than 40.