Circumflex Nerve Blocks Versus Posterior Cord Nerve Blocks in Shoulder Arthroscopy

Not Applicable

• Conditions: Postoperative Pain
• Interventions: Procedure: Suprascapular Nerve Block; Procedure: Axillary Nerve Block; Procedure: posterior cord block; Procedure: General anesthesia

• Registration Number: NCT04446403
• Lead Sponsor: Bassant M. Abdelhamid

Brief Summary

Shoulder arthroscopy is associated with severe postoperative pain. Traditionally, the interscalene approach to the brachial plexus has been employed to manage postoperative pain following shoulder surgery.To provide more complete shoulder joint analgesia, suprascabular nerve block (SSNB) was combined with block of the circumflex nerve which comes from the posterior cord of the brachial plexus that usually gives also upper subscapular, thoracodorsal, lower subscapular and radial nerves.

Detailed Description

Aim of the work is to compare postoperative analgesic effect of ultrasound guided combined suprascapular and circumflex nerve blocks versus suprascapular nerve and posterior cord blocks at infraclavicular level .

Thirty four patients aged from 18-70 years old, with ASA physical status I-II-III and scheduled for shoulder surgeries will be included in the study. Patients will be randomly allocated using computer-generated table into one of two groups:

* Group circumflex → will undergo ultrasound guided SSN+circumflex.

* Group posterior cord → will undergo ultrasound guided SSN+posterior cord.

Study Timeline

• Status Verified: 2020-06
• Study First Submitted: 2020-06-22
• Study First Submitted QC: 2020-06-22
• Study First Posted: 2020-06-24
• Study Start: 2020-06-25
• Last Update Submitted: 2020-06-26
• Last Update Posted: 2020-06-29
• Primary Completion: 2020-09-20
• Study Completion: 2020-09-30

Recruitment & Eligibility

• Status: UNKNOWN
• Sex: All
• Target Recruitment: 30

Inclusion Criteria

• ASA I-II.-III
• Undergoing shoulder arthroscopy.

Exclusion Criteria

• Patient refusal
• Known allergy to local anesthetics
• Bleeding disorders
• Inability to provide informed consent

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: PARALLEL

Arm && Interventions

Group	Intervention	Description
circumflex	Suprascapular Nerve Block	patients will undergo ultrasound guided SSN+circumflex
circumflex	General anesthesia	patients will undergo ultrasound guided SSN+circumflex
posterior cord	Suprascapular Nerve Block	patients will undergo ultrasound guided SSN+circumflex
circumflex	Axillary Nerve Block	patients will undergo ultrasound guided SSN+circumflex
posterior cord	posterior cord block	patients will undergo ultrasound guided SSN+circumflex
posterior cord	General anesthesia	patients will undergo ultrasound guided SSN+circumflex

Primary Outcome Measures

Name	Time	Method
Time of the first postoperative analgesic request	12 hours postoperative

Secondary Outcome Measures

Name	Time	Method
Visual analogue score	12 hours postoperative	visual analog scale (VAS) ranging from 0 to 10 (0 = no pain and 10 = worst imaginable pain) and verbal pain scale (VPS )ranging from 0 to 3 (0 = no pain, 1 = mild pain, 2 = moderate pain, and 3 = severe pain).
Total morphine consumption	12 hours postoperative

Trial Locations

Locations (1)

Anesthesia Department; 🇪🇬 Cairo, Egypt