Actively Recruiting
Evaluation of the Effect of Ultrasound-Guided Quadro-Iliac Plane Block on Postoperative Analgesia in Patients Undergoing Lumbar Spinal Surgery
Led by Fatih Sultan Mehmet Training and Research Hospital · Updated on 2026-02-23
60
Participants Needed
1
Research Sites
N/A
Total Duration
On this page
AI-Summary
What this Trial Is About
Researchers are evaluating how an ultrasound-guided Quadro-Iliac Plane Block (QIPB) affects pain relief after lumbar spinal surgery. This observational study focuses on adults aged 18 to 65 undergoing elective lumbar spinal surgery under general anesthesia. The goal is to see if QIPB improves pain control, reduces opioid use, and lowers side effects like nausea, helping patients recover more comfortably. Participants receive standard general anesthesia and postoperative intravenous patient-controlled analgesia (PCA) with tramadol. Some patients also receive the QIPB nerve block at the end of surgery, performed bilaterally using ultrasound guidance, while others receive local anesthetic infiltration (LAI) by the surgeon at the incision site. No treatments are assigned by the researchers; instead, patients are observed in two groups based on their routine clinical care. Participants will be monitored in the post-anesthesia care unit and at 1, 6, 12, and 24 hours after surgery. Pain levels at rest and during movement will be recorded using a Numeric Rating Scale (NRS). Researchers will also track opioid use, rescue pain medication needs, nausea and vomiting, sedation levels, patient satisfaction, and any block-related complications during the first 24 hours. This data aims to provide real-world evidence on QIPB's role in postoperative pain management.
CONDITIONS
Brief Title
Effect of Ultrasound-Guided Quadro-Iliac Plane Block on Postoperative Analgesia After Lumbar Spinal Surgery
Who Can Participate
Eligibility Criteria
You may qualify if you...
- Patients aged between 18 and 65 years
- American Society of Anesthesiologists (ASA) physical status I-III
- Body mass index (BMI) below 35 kg/m²
- Scheduled for elective posterior lumbar spinal instrumentation surgery under general anesthesia
You will not qualify if you...
- Refusal to participate in the study
- Emergency surgery
- Local infection or hematoma at the block application site
- Previous surgery at the block application site
- Presence of coagulopathy
- Known allergy or toxicity to local anesthetics
- History of hematological, renal, or hepatic disease, or advanced respiratory or cardiac failure
- Chronic analgesic use, chronic alcohol consumption, or substance abuse
- Inability to speak Turkish or presence of language or communication barriers
AI-Screening
AI-Powered Screening
Complete this quick 3-step screening to check your eligibility
Your Study Journey
Duration - 2 to 4 weeks
Participants are screened for eligibility to participate in the trial.
1 visit (in-person)
Duration - Surgery day
Participants undergo elective lumbar spinal surgery under general anesthesia. Ultrasound-guided Quadro-Iliac Plane Block (QIPB) may be performed bilaterally at the end of surgery as part of routine care, or local anesthetic infiltration (LAI) is performed by the surgeon.
1 visit (in-person)
Duration - 24 hours after surgery
Participants are monitored for postoperative analgesia and related outcomes, including pain intensity, opioid consumption, nausea and vomiting, sedation level, and patient satisfaction within the first 24 hours after surgery.
5 visits (post-anesthesia care unit and at 1, 6, 12, and 24 hours postoperatively)
Trial Site Locations
Total: 1 location
1
Fatih Sultan Mehmet Training and Research Hospital
Istanbul, Istanbul, Turkey (Türkiye), 34752
Actively Recruiting
Research Team
E
Elif Acar Deger, Dr.
How is the study designed?
Study Type
OBSERVATIONAL
Masking
N/A
Allocation
N/A
Model
N/A
Primary Purpose
N/A
Number of Arms
2
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