Quadro-Iliac Plane Block for Pain Control After Posterior Spinal Instrumentation Surgery
For patients and families
In plain language
An automatic summary of structured registry data. It is an orientation aid, not a substitute for the official protocol or a physician assessment.
- What is being studied
- The protocol lists: Fentanyl (IV), Meperidine, Paracetamol (acetaminophen).
- Who it may be relevant to
- Registry conditions: Posterior Spinal Instrumentation Patients. Basic parameters: 18 years — 80 years · All.
- What needs checking
- Age, condition and sex are only basic indicators. Prior treatment, laboratory values and other mandatory requirements appear in the eligibility criteria below.
- Where it takes place
- Turkey (Türkiye)
- Next step
- Save the trial, show it to the treating physician, and confirm current recruitment with the study center. Costs, documents and travel →
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Official title
The Efficacy of Quadro-Iliac Plane Block for Postoperative Analgesia in Patients Undergoing Posterior Spinal Instrumentation Surgery: A Randomized Prospective Controlled Trial
Overview
Posterior spinal instrumentation can cause significant postoperative pain due to extensive muscle dissection, manipulation of bone tissue, and implant placement. Providing optimal analgesia in the postoperative period is important for patients' functional recovery and early mobilization. Inadequate control of postoperative pain may delay recovery, increase the risk of opioid dependence, and lead to respiratory complications. Although opioid analgesics are effective in reducing pain during the postoperative period, they are associated with side effects such as nausea, vomiting, respiratory depression, and the risk of dependence. Therefore, the use of non-opioid analgesic approaches is important for patient safety and comfort. For these reasons, regional analgesia techniques such as the modified thoracolumbar interfascial plane (TLIP) block and the erector spinae plane (ESP) block have recently become increasingly popular for postoperative pain control. The quadro-iliac plane block is a novel technique that targets the attachment area of the posterior surface of the quadratus lumborum muscle on the inner surface of the iliac crest. In this block, the spread of local anesthetic along the fascial planes surrounding the quadratus lumborum muscle may provide an anatomical mechanism contributing to analgesia of the lumbosacral, paraspinal, lower abdominal, and gluteal regions. However, as the quadro-iliac plane block is a new technique, there are not yet sufficient studies on this topic in the literature. The primary objective of our study is to evaluate the effect of ultrasound-guided quadro-iliac plane block (QIPB) on postoperative opioid consumption after posterior spinal instrumentation. The secondary objectives are to compare opioid-related side effects, such as nausea, vomiting, and respiratory depression, as well as postoperative NRS (Numeric Rating Scale) pain scores between the groups.
Interventions
- Drug Fentanyl (IV)
All patients will have an IV PCA with fentanyl.The PCA settings will consist of a 10-µg fentanyl bolus dose with a 10-minute lockout interval. - Drug Meperidine
If the patient's NRS is 4 or more even though 1 gr IV paracetamol and IV PCA, meperidine 0.5 mg/kg w'll be administered as rescue analgesic - Drug Paracetamol (acetaminophen)
An order for intravenous paracetamol 1 g every 8 hours will be placed for all patients.
Primary outcome measures
- The effect of ultrasound-guided quadro-iliac plane block (QIPB) on postoperative opioid consumption f [Time frame: Postoperative 24 hours]
Secondary outcome measures (2)
- NRS of patients [Time frame: Postoperative 24 hours]
- Opioid related adverse effects [Time frame: Postoperative 24 hours]
Eligibility criteria
Inclusion Criteria: Posterior spinal instrumentation patients -
Exclusion Criteria: Contraindications for regional analgesia, allergies for local anesthetics
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Criteria are shown verbatim from the registry (in English). Final eligibility is always assessed by the study center.
Healthy volunteers: No
Study design
- Allocation
- Randomized
- Model
- Parallel assignment
- Masking
- Single blind
- Primary purpose
- Prevention
Study locations
Turkey (Türkiye) · 1 center
- Medipol Mega Hastaneler Kompleksi — Istanbul
Publications
- Turan EI, Sahin AS. Quadro-iliac plane block (QIPB) in lumbar stabilisation surgeries: A case series. Indian J Anaesth. 2025 Feb;69(2):244-245. doi: 10.4103/ija.ija_1077_24. Epub 2025 Jan 29. No abstract available. PMID 40160919
- Ciftci B, Cetinkal A, Alver S, Ahiskalioglu A. Quadro-iliac plane block for lumbar multi-level instrumentation surgery: far away from the surgical area. Minerva Anestesiol. 2025 Apr;91(4):358-359. doi: 10.23736/S0375-9393.24.18680-4. Epub 2024 Dec 10. No abstract available. PMID 39656149
- Zamudio D, Fernandez L, Rodriguez A, Delgado D. Postoperative erector spinae plane block does not reduce morphine consumption after lumbar spinal fusion: A randomized controlled trial. J Clin Anesth. 2025 Nov;107:112022. doi: 10.1016/j.jclinane.2025.112022. Epub 2025 Sep 26. PMID 41014734
Identifiers
NCT: NCT07711522 · PSEQIPB2026