Evaluating the Efficacy of Erector Spinae Block in Routine Hip Arthroscopy

Study Overview
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Brief Summary
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The aim of this project is to evaluate the efficacy of preoperative erector spinae blocks in arthroscopic hip surgery. This will be a prospective randomized controlled trial.

Detailed Description
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The aim of this project is to evaluate the efficacy of preoperative erector spinae blocks in arthroscopic hip surgery. This will be a prospective randomized controlled trial. The control group will not receive a preoperative block prior to surgery, but will receive local anesthetic at the surgical site at the conclusion of the surgery. The study group will receive a preoperative block and local anesthetic. The primary outcomes will be pain levels and opioid consumption in the post-operative care unit. The secondary outcomes will be pain levels and opioid consumption post-operatively, and functional outcome measures.

Official Title
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Evaluating the Efficacy of Erector Spinae Block in Routine Hip Arthroscopy: A Prospective Analysis

Conditions
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Hip Disease, Postoperative Pain

Intervention / Treatment
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* Procedure: Erector spinae block
* Procedure: Local block


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: All patients undergoing hip arthroscopy for femoroacetabular impingement Ages 13-50 Individuals who have the capacity to provide consent or assent for themselves Exclusion Criteria: Hip arthroscopy for any other reason (not undergoing labral repair, acetabuloplasty, and femoral osteochondroplasty) Revision surgery Known narcotic use in the 6 months prior to surgery Workman's compensation patient Pregnancy

Ages Eligible for Study
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Minimum Age: 13 Years
Maximum Age: 50 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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No

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Treatment
Allocation: Randomized
Intervention Model: Parallel Assignment
Interventional Model Description: Patients will be randomized to either the study group or control group prior to undergoing surgery
Masking: Single


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Active Comparator: Control<br>Will not receive erector spinae block. Will be administered 30 mL of 0.5% Marcaine w/ epinephrine as a local block at the surgical site at the conclusion of the procedure. | Procedure: Local block<br>* See control and study arm group descriptions for the local block<br>|
| Experimental: Study<br>Will receive an erector spinae block prior to surgery using 30-45 mL of 0.25 bupivacaine w/ epinephrine and 5 mL of dexmedetomidine. Will be administered 30 mL of 0.5% marcaine w/ epinephrine as a local block at the surgical site at the conclusion of the procedure. | Procedure: Erector spinae block<br>* See experimental arm group description<br>Procedure: Local block<br>* See control and study arm group descriptions for the local block<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Post Anesthesia Care Unit Opioids | Total morphine milligram equivalents of administered in the post-operative care unit | 6 hours post-operatively | 
| Post Anesthesia Care Unit Pain | Visual analogue pain score at the time of discharge from the Post Anesthesia Care Unit in which 0 equals no pain and 10 equals extreme pain | 6 hours post-operatively | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Hip disability and Osteoarthritis Outcome Score | Hip disability and Osteoarthritis Outcome score at post-op visits in which 0 equals no pain and 100 equals unbearable pain | 1 year post-operatively | 
| Patient Reported Outcomes measurement Information System Score | Patient Reported Outcomes measurement Information System score at post-op visits in which 0 equals no pain and 10 equals extreme pain | 1 year post-operatively | 
| Range Of Motion | Hip range of motion in degrees of motion, will be examined by the operative surgeon in the office measured by flexion 0-110 degrees with 0 being no range of motion and 110 being full range of motion, internal rotation -5-25 degrees with -5 being no range of motion and -25 being full range of motion, and external rotation 0-60 degrees with 0 being no range of motion and 60 being full range of motion. | 1 year post-operatively | 
| Outpatient Opioids | Opioids consumed after discharge from hospital | 4 weeks post discharge | 
| Outpatient Visual Analog Scale scores | Pain scores each day for the first 4 weeks after surgery on the Visual Analog Scale in which 0 equals no pain and 10 equals unbearable pain | 4 weeks post discharge | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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Hip, Pain, Arthroscopy