Quadratus Lumborum vs Erector Spinae Supplementary Blocks With Lumbar Plexus Blocks for Hip PAO
Public ClinicalTrials.gov record NCT04481451. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.
Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.
Brief summary
Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.
This study proposes to evaluate the efficacy of single shot erector spinae block (ESB) versus single shot quadratus lumborum block (QLB) when used in conjunction with continuous lumbar plexus block (LPB) for postoperative analgesia in children and adolescents undergoing unilateral hip surgical procedures. The aim of this study is to compare the efficacy of the QL vs. ESP blocks as supplements to the lumbar plexus block with respect to pain control outcomes after hip PAO surgery. Both blocks are safe and easy to perform. There is currently no comparative, prospective data concerning the use of these two blocks for hip surgery. The investigational hypothesis is that there will be no clinical difference in the amount of opioid consumed or the overall pain control offered by these two block options.
Study identification
- NCT ID
- NCT04481451
- Recruitment status
- Withdrawn
- Study type
- Interventional
- Phase
- Phase 4
- Enrollment
- Not listed
Conditions and interventions
Conditions
Interventions
- Erector spinae block with ropivacaine 0.2% Procedure
- Quadratus lumborum block with ropivacaine 0.2% Procedure
- Ropivacaine Drug
Procedure · Drug
Eligibility (public fields only)
- Age range
- 15 Years to 30 Years
- Sex
- All
- Healthy volunteers
- Accepts healthy volunteers
This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.
Study timeline
- Start date
- Nov 30, 2020
- Primary completion
- Nov 30, 2025
- Completion
- Nov 30, 2025
- Last update posted
- Dec 11, 2025
2020 – 2025
United States locations
- U.S. sites
- 1
- U.S. states
- 1
- U.S. cities
- 1
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| Boston Children"S Hospital | Boston | Massachusetts | 02118 | — |
Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.
About this trial record page
- What this page shows
- Public field values for ClinicalTrials.gov record NCT04481451, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
- What this page does not do
- No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
- Where the data comes from
- Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
- Last refresh
- Last update posted Dec 11, 2025 · Synced Sep 7, 2026
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Open the official record
The complete protocol, eligibility criteria, and contact information for NCT04481451 live on ClinicalTrials.gov.