Evaluation of Supraclavicular, Suprascapular, and Interscalene Nerve Blocks for Outpatient Shoulder Surgery

The aim of this study is to assess analgesic efficacy of a supraclavicular nerve block, suprascapular nerve block, or interscalene nerve block in a population undergoing shoulder arthroscopy with rotator cuff repair. The investigators hypothesize that subjects from all three arms will receive equal analgesia since these blocks are routinely performed to treat post-operative pain after shoulder surgery.

Study Overview

• Status: Completed
• Conditions: Pathologic Processes; Pain; Pain, Postoperative; Shoulder Joint
• Intervention / Treatment: Procedure: Brachial plexus nerve block

• Study Type: Interventional
• Enrollment (Actual): 189
• Phase: Not Applicable

Contacts and Locations

Study Locations

• United States
  • Washington
    • Seattle, Washington, United States, 98104
      • Virginia Mason Medical Center

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: 18 years and older (Adult, Older Adult)
• Accepts Healthy Volunteers: No
• Genders Eligible for Study: All

Description

Inclusion Criteria:

• Unilateral total shoulder arthroscopy for rotator cuff surgery ASA physical status I-III, >18 years old, Non-pregnant, Consent to participate in the study

Exclusion Criteria:

• Refusal to participate, < 18 years old, Chronic opioid use, Localized infection, Pregnancy or lactating, Pre-existing coagulopathy, Allergy to ultrasound gel or local anesthetics, Diaphragmatic dysfunction

Study Plan

How is the study designed?

Design Details

• Primary Purpose: Treatment
• Allocation: Randomized
• Interventional Model: Parallel Assignment
• Masking: Triple

Number of Arms

3

Arms and Interventions

Participant Group / Arm	Intervention / Treatment
Active Comparator: Interscalene; Single-shot Interscalene Nerve Block with ropivacaine 0.5%	Procedure: Brachial plexus nerve block; All arms of the study comparing the three different blocks are receiving the same single injection bolus of ropivacaine 0.5% prior to surgery. We will then record and compare pain scores in PACU and opioid requirement.
Active Comparator: Supraclavicular; Single-shot Supraclavicular Nerve Block with ropivacaine 0.5%	Procedure: Brachial plexus nerve block; All arms of the study comparing the three different blocks are receiving the same single injection bolus of ropivacaine 0.5% prior to surgery. We will then record and compare pain scores in PACU and opioid requirement.
Active Comparator: Suprascapular; Single-shot Suprascapular Nerve Block with ropivacaine 0.5%	Procedure: Brachial plexus nerve block; All arms of the study comparing the three different blocks are receiving the same single injection bolus of ropivacaine 0.5% prior to surgery. We will then record and compare pain scores in PACU and opioid requirement.

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Pain	NRS Pain Scale	Same day, 1 hour after arrival in the post-anesthesia care unit after surgery

Secondary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Lung function	Vital Capacity, Spirometry	Same day, 1 hour after arrival in the post-anesthesia care unit after surgery
Sensory and Motor Function	Sensory Dermatome assessment C4 - C8 to touch; Motor assessment of grip and biceps with dynamometer	Same day, 1 hour after arrival in the post-anesthesia care unit after surgery
Diaphragmatic excursion	Ultrasound measuring the diaphragm movement in centimeters (cm)	Same day, 1 hour after arrival in the post-anesthesia care unit after surgery

Collaborators and Investigators

• Sponsor: Benaroya Research Institute
• Investigators: Principal Investigator: David Auyong, MD, Virginia Mason Medical Center

Study record dates

Study Major Dates

• Study Start (Actual): October 1, 2014
• Primary Completion (Actual): November 1, 2016
• Study Completion (Actual): November 1, 2016

Study Registration Dates

• First Submitted: November 5, 2014
• First Submitted That Met QC Criteria: November 6, 2014
• First Posted (Estimate): November 10, 2014

Study Record Updates

• Last Update Posted (Estimate): February 2, 2017
• Last Update Submitted That Met QC Criteria: January 31, 2017
• Last Verified: January 1, 2017

More Information

Terms related to this study

• Additional Relevant MeSH Terms: Postoperative Complications; Pain; Neurologic Manifestations; Pain, Postoperative; Pathologic Processes
• Other Study ID Numbers: IRB 14013