Ultrasound-guided Quadro-Iliac Plane Block for pain after lumbar instrumentation

Evaluation of the Effectiveness of Ultrasound-Guided Quadro-Iliac Plane Block in Postoperative Analgesia Management Following Lumbar Instrumentation Surgery

Not applicable Interventional Bursa City Hospital · NCT07370428

This trial will try an ultrasound-guided Quadro-Iliac Plane Block to reduce postoperative pain in adults having elective lumbar instrumentation surgery.

Quick facts

PhaseNot applicable
Study typeInterventional
Enrollment80 (estimated)
Ages18 Years to 65 Years
SexAll
SponsorBursa City Hospital Government
Locations1 site (Bursa)
Trial IDNCT07370428 on ClinicalTrials.gov

What this trial studies

Lumbar instrumentation commonly causes significant postoperative pain that can delay recovery and increase analgesic needs. In this interventional study, adults undergoing elective lumbar instrumentation under general anesthesia will receive an ultrasound-guided Quadro-Iliac Plane Block as part of their postoperative pain management. Investigators will record postoperative pain scores, opioid consumption, and any block-related complications to characterize analgesic effectiveness and safety. The results aim to clarify whether this newly described regional technique provides meaningful pain relief after lumbar spine surgery.

Who should consider this trial

Good fit: Adults classified ASA I–III scheduled for elective lumbar instrumentation under general anesthesia who can give informed consent and have no contraindications such as anticoagulant use, local infection, allergy to local anesthetics, diabetes, or significant renal/hepatic impairment are ideal candidates.

Not a fit: Patients on anticoagulants or with bleeding disorders, infection at the block site, pregnancy or lactation, prior lumbar surgery, diabetes, renal or hepatic impairment, or cognitive impairment limiting reliable pain reporting are unlikely to be eligible or to benefit from participation.

Why it matters

Potential benefit: If successful, this block could reduce postoperative pain and opioid requirements and support earlier mobilization after lumbar spine surgery.

How similar studies have performed: The Quadro-Iliac Plane Block is newly described and direct clinical data are limited, although other ultrasound-guided plane blocks for lumbar surgery have shown promising but variable reductions in pain and opioid use.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Classified as American Society of Anesthesiologists (ASA) physical status I-III
* Scheduled for elective lumbar instrumentation surgery
* Surgery performed under general anesthesia
* Provision of written informed consent

Exclusion Criteria:

* Use of anticoagulant or antiplatelet medications
* Presence of bleeding diathesis or coagulation disorders
* Known allergy or hypersensitivity to local anesthetics or opioid medications
* Infection at the planned block site
* Alcohol or drug dependence
* Cognitive impairment preventing reliable pain assessment using the NRS
* Pregnancy or lactation
* History of previous lumbar spine surgery
* Diabetes mellitus
* Renal or hepatic impairment

Where this trial is running

Bursa

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Postoperative PainQuadro-Iliac Plane BlockLumbar Instrumentation SurgeryPain Management
Last reviewed 2026-06-10 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.