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

Benaroya Research Institute189 enrolled

Overview

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 Type

INTERVENTIONAL

Allocation

RANDOMIZED

Purpose

TREATMENT

Masking

TRIPLE

Enrollment

189

Conditions

Pain, Postoperative Pain Shoulder Joint Pathologic Processes

Interventions

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.

Eligibility

Sex: ALLMin age: 18 Years

Medical Language ↔ Plain English

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

Outcomes

Primary Outcomes

Pain

NRS Pain Scale

Time frame: Same day, 1 hour after arrival in the post-anesthesia care unit after surgery

Secondary Outcomes

Lung function

Vital Capacity, Spirometry

Time frame: 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

Time frame: Same day, 1 hour after arrival in the post-anesthesia care unit after surgery

Diaphragmatic excursion

Ultrasound measuring the diaphragm movement in centimeters (cm)

Time frame: Same day, 1 hour after arrival in the post-anesthesia care unit after surgery

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

Overview

Conditions

Interventions

Eligibility

Locations (1)

Outcomes

Primary Outcomes

Secondary Outcomes