Optimal Location of Local Anesthetic Injection for Ultrasound Guided Interscalene Block

Intraplexus vs Extraplexus Injection of Local Anesthetic for Interscalene Block for Patients Undergoing Arthroscopic Shoulder Surgery

NCT01877330•University of California, San Francisco

View on ClinicalTrials.gov

Summary

This is a prospective randomized clinical trial to determine where is the optimal location for local anesthetic injection for ultrasound guided interscalene nerve blocks. The investigators are investigating if local anesthetic deposited between the nerve roots is more effective than local anesthetic deposited in the interscalene groove.

Eligibility

Age

18 - No limit years

Sex

ALL

Healthy Volunteers

Exclusion Criteria

•chronic pain
•high preoperative opioid requirement
•age \< 18 years old
•non-English speaking
•contraindication to regional anesthesia (allergy to local anesthetics, coagulopathy, severe thrombocytopenia, pre-existing neuropathy in operative limb, infection at puncture site)
•need for postoperative nerve function monitoring
•patient refusal
•dementia
•pulmonary disease or low baseline oxygen saturation

Locations (1)

UCSF Orthopedic Institute

San Francisco, California, United States

Key Dates

Start Date

January 1, 2013

Primary Completion Date

March 1, 2016

Completion Date

April 1, 2016

Last Updated

March 19, 2020

Enrollment

208

ACTUAL participants

Conditions

Shoulder ArthroscopyUltrasound-guided Interscalene Nerve Block

Interventions

Interscalene block for shoulder arthroscopy

PROCEDURE

Partial Rotator Cuff Injury Combined With Stiff Shoulder

NCT07192302

Rotator Cuff Tears of the ShoulderShoulder Adhesive Capsulitis+1 more

View study

COMPLETEDNA

Comparison of the Postoperative Analgesic Efficacy of SPSIPB and ISBPB

NCT06626191

Shoulder ArthroscopyPeripheral Nerve Block+1 more

View study

Data Source & Attribution

This clinical trial information is sourced from ClinicalTrials.gov, a service of the U.S. National Institutes of Health.

ClinicalTrials.gov last update: March 19, 2020Data synced to Clareo: March 29, 2026

Modifications: This data has been reformatted for display purposes. Eligibility criteria have been parsed into inclusion/exclusion sections. Location data has been geocoded to enable distance-based search. For the authoritative and most current information, please visit ClinicalTrials.gov.

Neither the United States Government nor Clareo Health make any warranties regarding the data. Check ClinicalTrials.gov frequently for updates.

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Optimal Location of Local Anesthetic Injection for Ultrasound Guided Interscalene Block

Exclusion Criteria

Partial Rotator Cuff Injury Combined With Stiff Shoulder

Comparison of the Postoperative Analgesic Efficacy of SPSIPB and ISBPB

Effect of Anesthesia Technique on Surgical View in Shoulder Arthroscopy

Development of the Surgeon Satisfaction Self-Assessment Questionnaire for Shoulder Arthroscopy

Intravenous Dexamethasone on Supraclavicular Brachial Plexus Block for Shoulder Arthroscopy

The Effect of Tranexamic Acid (TXA) on Visualization During Shoulder Arthroscopy