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Comparison of the Effectiveness of USG-Guided Interscalene Block Versus Combined Interscalen-Suprascapular Block for Arthroscopic Shoulder Surgery
Sponsor: Asuman Ocaklar
Summary
This study aims to compare two commonly used regional anesthesia techniques for shoulder arthroscopy: the ultrasound-guided interscalene block and the combined interscalene-suprascapular nerve block. Both techniques are routinely performed to reduce pain during and after shoulder surgery. The purpose of this study is to determine which method provides better postoperative pain control, reduces the need for pain medication, and causes fewer side effects such as diaphragmatic dysfunction. Participants will receive one of the two nerve block techniques before surgery, and their pain scores, opioid consumption, and respiratory effects will be monitored during the first 24 hours after the operation.
Official title: Comparison of the Effectiveness of Ultrasound-Guided Interscalene Block Versus Combined Interscalene and Suprascapular Nerve Blocks in Arthroscopic Shoulder Surgery
Key Details
Gender
All
Age Range
18 Years - 75 Years
Study Type
INTERVENTIONAL
Enrollment
60
Start Date
2026-03-01
Completion Date
2026-12-30
Last Updated
2026-03-03
Healthy Volunteers
No
Interventions
Ultrasound-Guided Interscalene Block
An ultrasound-guided interscalene brachial plexus block performed at the C5-C6 level using a high-frequency linear ultrasound probe. Local anesthetic is injected around the brachial plexus under real-time ultrasound visualization. This technique represents the standard regional anesthesia method for arthroscopic shoulder surgery.
Combined Ultrasound-Guided Interscalene and Suprascapular Nerve Blocks
A combined regional anesthesia technique consisting of an ultrasound-guided interscalene block performed at the C5-C6 level, followed by an ultrasound-guided suprascapular nerve block administered at the suprascapular notch. Local anesthetic is injected around both the brachial plexus and the suprascapular nerve under ultrasound guidance. This technique aims to improve postoperative analgesia while potentially reducing phrenic nerve involvement.