Suprascapular Nerve Block Efficacy for Shoulder Surgery

Not Applicable

• Conditions: Shoulder Pain; Postoperative Pain; Anesthesia; Anesthesia, Local; Rotator Cuff Tears
• Interventions: Procedure: Suprascapular nerve block; Procedure: Interscalene Nerve Block; Procedure: Arthroscopic rotator cuff repair

• Registration Number: NCT04364542
• Lead Sponsor: Ivan Simionato

Brief Summary

This study evaluates the analgesia induced by suprascapular nerve block in comparison to interscalene nerve block in arthroscopic rotator cuff repairs. The experimental and the control group will receive the suprascapular nerve block and interscalene nerve block, respectively.

Detailed Description

Peripheral nerve blocks are widely used for postsurgical analgesia. Interscalene nerve block provides a total brachial plexus motor and sensitive blockade while the suprascapular nerve block produces only a specific peripheral blockade.

The interscalene nerve block is the most frequently used anesthesia technique and requires a longer learning curve. Complications related to this technique may be more severe and frequent in comparison to other regional anesthesia techniques.

The suprascapular nerve block yields less adverse effects, discomfort and rebound effect as this technique does not completely block the upper limb motor function.

Study Timeline

• Study First Submitted: 2020-03-11
• Status Verified: 2020-04
• Study First Submitted QC: 2020-04-27
• Last Update Submitted: 2020-04-27
• Study First Posted: 2020-04-28
• Last Update Posted: 2020-04-28
• Study Start: 2020-05-10
• Primary Completion: 2021-06-30
• Study Completion: 2021-08-30

Recruitment & Eligibility

• Status: UNKNOWN
• Sex: All
• Target Recruitment: 98

Inclusion Criteria

• Age between 18 and 80 years old
• Confirmed rotator cuff tear by magnetic resonance imaging

Exclusion Criteria

• Irreparable cuff tears (retracted lesions to the glenoid rim and/or fourth grade fatty infiltration)
• Partial repair of cuff tears (immobile lesions)
• Rheumatic diseases
• Neck-related shoulder pain
• Glenohumeral instability or osteoarthritis

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: PARALLEL

Arm && Interventions

Group	Intervention	Description
Suprascapular nerve block (SSNB)	Arthroscopic rotator cuff repair	Single shot using the blind block technique with 10 ml 0.75% ropivacaine and arthroscopic portals infiltration with 5 ml 0.75% diluted in 15 ml of distilled water.
Interscalene Nerve Block (ISB)	Arthroscopic rotator cuff repair	Single shot using US-guided interscalene brachial plexus block with 15 ml 0.5% ropivacaine and arthroscopic portals infiltration with 5 ml 0.75% diluted in 15 ml of distilled water.
Suprascapular nerve block (SSNB)	Suprascapular nerve block	Single shot using the blind block technique with 10 ml 0.75% ropivacaine and arthroscopic portals infiltration with 5 ml 0.75% diluted in 15 ml of distilled water.
Interscalene Nerve Block (ISB)	Interscalene Nerve Block	Single shot using US-guided interscalene brachial plexus block with 15 ml 0.5% ropivacaine and arthroscopic portals infiltration with 5 ml 0.75% diluted in 15 ml of distilled water.

Primary Outcome Measures

Name	Time	Method
Pain intensity: Numeric Pain Rating Scale	72 hours after surgery	Numeric Pain Rating Scale - no pain (0), unbearable pain (10)

Secondary Outcome Measures

Name	Time	Method
Opiate Consumption	Postoperative hours 1-72	Total amount of narcotics consumed during the postoperative period measured in morphine equivalents (OME).

Trial Locations

Locations (1)

Irmandade Santa Casa de Misericordia de Porto Alegre; 🇧🇷 Porto Alegre, Rio Grande Do Sul, Brazil