Quadro-Iliac Plane Block to Ease Pain After Lumbar Microdiscectomy

Is this trial a fit for you?

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

Adults undergoing elective single-level lumbar microdiscectomy are randomized to receive either a bilateral quadro-iliac plane block with postoperative patient-controlled analgesia or local infiltration analgesia with the same analgesia approach. The main endpoint is total fentanyl use in the first 24 hours after surgery, with secondary endpoints including pain scores, need for additional analgesia, opioid-related side effects, dermatomal spread of anesthesia, and recovery quality. The study is prospective, randomized, double-blind where possible, and multicenter, comparing two analgesia strategies under a standardized anesthesia protocol. Outcomes will inform whether the plane block provides superior postoperative pain control and opioid-sparing benefits.

Why it matters

Who can join: the full rules

Inclusion Criteria:

* Adults aged 18 to 75 years
* American Society of Anesthesiologists physical status I to III
* Scheduled for elective single-level lumbar microdiscectomy, such as L4-L5 or L5-S1 disc herniation
* Planned surgery under general anesthesia
* Able to provide written informed consent

Exclusion Criteria:

* Allergy or hypersensitivity to local anesthetics
* Coagulopathy or active anticoagulant use
* Infection, scar tissue, or skin lesion at the injection site
* Pregnancy or breastfeeding
* Chronic pain syndrome or regular opioid use
* American Society of Anesthesiologists physical status IV or higher
* Planned surgery for two or more levels of disc herniation

Where it's running

• Health Science University İstanbul Kanuni Sultan Süleyman Education and Training Hospital
  Istanbul, Istanbul, Turkey (Türkiye) Recruiting

Study contacts

• Study coordinator: Engin ihsan Turan, principal investigator
• Email: drenginihsan@gmail.com
• Phone: +905382431114

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How to take part

1. Review the eligibility criteria above with your treating physician.
2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.