Ultrasound-Guided Transgluteal Nerve Block Versus Standard Care for Adults With Sciatic Back Pain in the Emergency Department
Led by University of California, San Francisco · Updated on 2026-06-02
100
Participants Needed
1
Research Sites
4 weeks
Total Duration
AI-Summary
What this Trial Is About
Researchers are evaluating the effectiveness of an ultrasound-guided transgluteal sciatic nerve block compared to standard care for adult patients experiencing sciatic back pain who visit the emergency department. The main purpose is to determine if this nerve block improves pain better than the usual treatments in these patients. The study is a randomized trial conducted by the University of California, San Francisco, focusing on adults with acute or acute-on-chronic sciatica pain.
Participants are randomly assigned to one of two groups one receiving an ultrasound-guided transgluteal sciatic nerve block using 10-20 mL of 0.2% ropivacaine injected near the affected nerve, and the other receiving standard emergency department pain management, which may include oral or intravenous NSAIDs, acetaminophen, opioids, or muscle relaxants. These treatments are delivered during the emergency department visit.
During the study, participants will be asked about their pain levels and to walk a short timed distance to assess ambulatory status. Pain scores will be recorded at 30 minutes after treatment, at the decision point of hospital admission or discharge up to 6 hours, and at 24 and 48 hours after the emergency visit. Researchers will also track ambulatory status before disposition and at 24 and 48 hours, as well as any emergency department return visits within 30 days. The total participation time varies according to these follow-up periods.
CONDITIONS
Brief Title
Comparing Ultrasound-Guided Transgluteal Nerve Block to Standard Care
Research Team
T
Tianyu Tang, MD
F
Felipe Ocampo, MD
Not the Right Trial for You?
Explore thousands of other clinical trials that might be a better match. Sign up to get personalized trial recommendations delivered to your inbox.
This table compares participation in this trial with other options available for this condition. The information is drawn from published research and the trial’s study details and is provided for educational purposes only.
Factors
Nerve block with ropivacaine
Departmental pain management protocol
What it is
A nerve block using ultrasound guidance to inject ropivacaine around the sciatic nerve at the gluteal level.
Medical pain management using oral or intravenous NSAIDs, acetaminophen, opioids, or muscle relaxants according to ED department protocols.
Role in trial
Experimental intervention arm; receives the nerve block to test pain relief effectiveness.
Active comparator arm; receives protocol-driven standard pain relief options typical for the ED.
Primary use
Intended to rapidly relieve acute sciatic nerve pain and support immediate ambulatory recovery.
Aims to decrease sciatica-related pain and improve comfort using established pharmacological agents.
How it is given or performed
The procedure involves ultrasound imaging to locate the sciatic nerve, then injecting 10-20 mL of 0.2% ropivacaine around the nerve at the greater trochanter.
Drugs are given orally or intravenously based on departmental protocol and patient needs.
Evidence status
Emerging evidence from prospective studies supports nerve blocks for significant pain reduction in acute sciatica presentations.
Supported by extensive experience and published guidelines for acute pain management in emergency settings.
Important limitations
Requires procedural expertise and ultrasound access; effectiveness and safety for broader ED use are under investigation.
Standard medications may be insufficient for severe pain or may cause side effects, and opioid use is monitored for safety concerns.
Disclaimer: This comparison is created with the help of artificial intelligence(AI) and may contain errors or missing information. It is not medical advice and does not mean one option is better or safer than another. Clinical trials are still being studied, and joining a trial is your choice. Please consult your healthcare professional before making any decisions.
Who Can Participate
Age: 18Years +
All Genders
Eligibility Criteria
You may qualify if you...
Adults aged 18 years and older
Presenting to the emergency department with acute or acute-on-chronic pain consistent with sciatica, defined as one-sided pain radiating from the lower back or buttock down the leg
Pain score of 5 or higher on the Numeric Rating Scale
You will not qualify if you...
Known allergy to study medications such as local anesthetics
Having a bleeding disorder or currently taking blood thinners
Suspected or confirmed spinal infection or tumor
Neurological problems including bowel or bladder dysfunction or leg weakness
Unable to provide informed consent
Your Study Journey
Screening
Duration - 2 to 4 weeks
Participants are screened for eligibility to participate in the trial.
1 visit (in-person) during emergency department presentation
Treatment
Duration - Up to 6 hours during the emergency department stay
Participants receive either an ultrasound-guided transgluteal sciatic nerve block or standard emergency department analgesic management for low back pain and sciatica.
1 treatment visit (in-person)
Follow-up
Duration - Up to 30 days after emergency department visit
Participants are followed after treatment to assess pain, ambulatory status, and emergency department bounceback.
3 follow-up contacts at 24 hours, 48 hours, and 30 days after the emergency department visit
How is the study designed?
Study Type
INTERVENTIONAL
Masking
NONE
Allocation
RANDOMIZED
Model
PARALLEL
Primary Purpose
TREATMENT
Number of Arms
2
Similar Trials
Ultrasound-Guided Transgluteal Nerve Block Versus Standard Care for Adults With Sciatic Back Pain in the Emergency Department
Study of Modified Release Metaxalone 640 mg for Treating Acute Lower Back Pain and Sciatica with Spinal Stenosis
Comparing Effects of Mulligan SNAG Technique and Sciatic Nerve Mobilization Exercises
for Adults with Non-Specific Sciatic Nerve Pain
Have more questions? Get in touch with our team for quick support
Published Research Related To This Trial
The Efficacy of Ultrasound-Guided Transgluteal Sciatic Nerve Blocks for Sciatic Radiculopathy Pain in the Emergency Department: A Multicenter Prospective Study.
Andrew J Goldsmith, Jeffrey Merz-Herrala, Jamie Gullikson...