Comparing curved and straight needles for S1 epidural injections
Official title: A Comparison of Intravascular Penetration With Curved Needle and Straight Needle During Sacral 1 Transforaminal Epidural Block
Run by Kyungpook National University Chilgok Hospital · NCT05956054 · Data updated 2026-05-14
This study is no longer in our active list. It may have stopped recruiting or finished. The details below are as of 2026-05-14 and are kept for reference. Check ClinicalTrials.gov for its current status, or see similar studies below.
This study is testing whether using a curved needle or a straight needle for S1 epidural injections makes a difference in how often the needle accidentally enters a blood vessel.
Quick facts
| Study type | Interventional |
|---|---|
| Ages | 18 Years to 80 Years |
| Sex | All |
| Enrollment | 240 (estimated) |
| Sponsor | Kyungpook National University Chilgok Hospital Academic / other |
| Locations | 1 site (Daegu) |
| Trial ID | NCT05956054 on ClinicalTrials.gov |
Is this trial a fit for you?
✓Likely a good fit
Ideal candidates are patients scheduled for a lumbar 1 epidural nerve block at Kyungpook National University Hospital.
✕Probably not a fit
Patients with allergies to local anesthetics or steroids, or those with a bleeding tendency or infection symptoms in the sacroiliac region may not benefit from this study.
A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.
What this trial studies
This observational study aims to compare the rate of intravasation during S1 transforaminal epidural injections using either a curved needle or a straight needle. Participants will be randomly assigned to receive the injection with one of the two needle types, and the researchers will monitor and compare the intravasation rates between the groups. The study seeks to determine if the choice of needle affects the likelihood of intravascular penetration during the procedure.
Why it matters
Potential benefit: If successful, this study could lead to improved safety and efficacy in administering S1 transforaminal epidural injections.
How similar studies have gone: While similar studies have explored needle types in various contexts, this specific comparison of curved versus straight needles in S1 injections is relatively novel.
Who can join: the full rules
Show full inclusion / exclusion criteria
Inclusion Criteria: * Patients scheduled for a lumbar 1 epidural nerve block in the outpatient department of anesthesiology and pain medicine at Kyungpook National University Hospital. Exclusion Criteria: 1. Patients with a history of allergy to local anesthetics or steroids 2. Patients with a history of allergy to contrast media 3. Patients with a bleeding tendency 4. Patients with symptoms of infection in the sacroiliac region 5. Patients under 18 years of age or over 80 years of age 6. Patients who are pregnant or planning to become pregnant 7. Other medically incapable of consent, such as the mentally retarded. Translated with www.DeepL.com/Translator (free version)
Where it's running
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Kyungpook National University Hospital
Daegu, Korea, Republic of Recruiting
Study contacts
- Study coordinator: Jinyoung Oh, MD, PHD
- Email: sgcms3@gmail.com
- Phone: +82-010-4425-0304
How to take part
- Review the eligibility criteria above with your treating physician.
- Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
- Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.