NCT06420336 · Medical University of South Carolina
QL vs LAI for Palatoplasty
What this study is about
This study will consist of patients ages 6-18 who are undergoing a surgery on the hard or soft palate of the mouth (palatoplasty), with removal of bone from the front of the hip (anterior iliac bone graft harvesting). The patients will be randomly assigned to receive either a unilateral QL block by an anesthesiologist, or local anesthetic infiltration at the surgical incision by the surgeon.
View original scientific description
This study will consist of patients ages 6-18 who are undergoing a surgery on the hard or soft palate of the mouth (palatoplasty), with removal of bone from the front of the hip (anterior iliac bone graft harvesting). The patients will be randomized to receive either a unilateral QL block by an anesthesiologist, or local anesthetic infiltration at the surgical incision by the surgeon. The primary aim will be assessing post-operative pain in the first 48 hours after surgery. Secondary outcomes will include pain medication use in the first 48 hours after surgery, block resolution time, and evaluating any complications associated with the QL block or local anesthetic infiltration.
Interventions
PROCEDURE
Quadratus lumborum block
After induction of anesthesia and securement of appropriate airway device, the patient will be placed in position for the QL block. Using ultrasound guidance, the pediatric anesthesiology attending will perform unilateral QL block on the side of the anterior iliac bone graft harvest. The dose will be 0.2% ropivacaine, 1 mL per kilogram to a max of 20 mL with an additive of dexamethasone 4 mg. Ultrasonography will be used to identify external oblique, internal oblique, transverse abdominus and quadratus lumborum muscles. A 50 mm-150 mm block needle will be advanced under ultrasound guidance. Ropivacaine will be injected slowly with frequent aspiration to rule out incorrect needle placement. The anesthetic is deposited at the lateral edge of the QL after penetrating the transversus abdominus aponeurosis. Injection will continue to be observed with real time US guidance.
PROCEDURE
Local anesthetic infiltration
After induction of anesthesia and securement of appropriate airway device the patient will be turned over to the surgical team to proceed with the operation. The surgeon will proceed with usual injection of local anesthetic as their standard of care; this medication will be charted by the circulating nurse in the Medication Administration Record with local anesthetic type and amount. At the conclusion of the procedure, to maintain the blind, the patient will have a bandage placed where the QL block would have been performed.
Primary outcome measures
Pain Scores
Time frame: 0-48 hours after surgery ends
Using the Wong-Baker FACES Pain Rating Scale, patients will report their average pain from 0 hours post-op through 48-hours post-op at various intervals. In the Post-Anesthesia Recovery Unit, pain scores will be evaluated every 15 minutes as clinically able, until discharged from the PACU. On Post-Op Day 1 at 9:00 am, pains average pain score from discharge to PACU to midnight will be reported. At approximately 24-hours after surgery ends, pain scores from midnight to 23-hours post-op will be reported, then at the 48-hour post-op mark, pain scores from 24-hr post op to 48-hour post-op time will be recorded.
Who can participate
This study lists these criteria on ClinicalTrials.gov. A study coordinator reviews eligibility during screening — this page does not determine whether you qualify.
Inclusion criteria
- Patients undergoing palatoplasty with autologous bone graft from the anterior iliac crest.
- Ages 6-18 years of age
- Planned admission post-op
- ASA Status Range: 1-3
Exclusion criteria
- Contraindication to QL blocks or LAI which may include:
- overlying infection skin at the block needle insertion site
- coagulopathies
- known bleeding disorders
- Allergy to local anesthetic
- Cognitive or developmental impairment that would limit ability to report pain.
- Non-English Speaking/Writing
- Subjects or their parent/guardian unable or choose to not give informed consent/assent.
Where
- Charleston, South Carolina
Related conditions & keywords
Frequently asked questions
What is a clinical trial?
A clinical trial is a research study that tests new medical treatments, drugs, devices, or procedures to determine their safety and effectiveness. Trials are carefully designed and monitored to protect participants while advancing medical knowledge.
Is it safe to participate?
Clinical trials follow strict safety guidelines and ethical standards. Trials must be reviewed and approved, and participants are closely monitored by medical professionals throughout the study. You can withdraw at any time if you choose.
Will I be compensated?
Many clinical trials offer compensation for your time, travel expenses, and inconvenience. The specific compensation varies by study and will be discussed during the screening process. All study-related medical care is typically provided at no cost to participants.
Will I receive a placebo instead of treatment?
When effective treatment exists, participants typically receive either the standard treatment plus the study intervention, or the standard treatment plus placebo. You would not be denied effective care. Placebos are primarily used when no proven treatment is available, or in addition to standard care. Your trial consent form will clearly explain what treatments you may receive.
Can I leave a trial if I change my mind?
Absolutely. Participation in clinical trials is completely voluntary. You have the right to withdraw from the study at any time, for any reason, without penalty or loss of benefits to which you are otherwise entitled.
How long does a clinical trial last?
Trial duration varies widely depending on the study design and purpose. Some trials last just a few weeks, while others may continue for months or years. The study coordinator will provide specific timeline information during your screening call.
Data: ClinicalTrials.gov · synced Jul 9, 2026 · Source of record for eligibility and locations