Bilateral Erector Spinae Plane Block Versus Bilateral Quadratus Lumborum Plane Block for Postoperative Anaelgesia After Lumbar Spine Surgery

The aim of this study is to compare postoperative analgesia and duration for each block performance plus complications after surgery in lumbar spine fixation.

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This study is active but is not currently recruiting participants.

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Key information

Conditions

Anaesthesia

Age range

18 year–65 year

Sex eligibility

All sexes

Study type

Interventional

Phase

Phase 4

Primary location

AinShamsU

Cairo, Cairo Governorate, 11511, Egypt

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

Aged between 18 and 65 years.
American Society of Anesthesiologists (ASA) physical status I to II.
Body mass index (BMI) less than 35 kg/m2.

Exclusion criteria

Revision surgery.
More than three levels surgery.
Abnormal state of blood coagulation.
Chronic opioid consumption.
Local infection at the injection site).
Allergy to any involved medications.
Taking opioids within the past two weeks prior to surgery.
Time of surgery more than 4 hours.

Treatment and study plan

Ultrasound-guided quadratus lumborum block (QLB)

Procedure

And ultrasound guided QLB block with transmuscular approach was performed using 0.5 ml/kg 0.25% bupivacaine to the patients in QLB group

Primary outcomes

Comparison between postoperative analgesia of QLB and ESPB after lumbar spine surgery via VAS score measurement

Time frame: VAS Score will be used to assess pain or discomfort in postoperative at 2, 4, 6, 12, 24 hours

The Visual Analog Scale (VAS) is used to assess pain intensity. It consists of a 10 cm line where 0 indicates "no pain" and 10 indicates "the worst possible pain." Higher scores indicate greater pain intensity.

Sponsors and collaborators

Lead sponsor

Ain Shams University

Other

Registry information

Important dates

Study start: 2025
Primary completion: 2026
Study completion: 2026
First posted: Apr 8, 2026
Registry last updated: Apr 8, 2026

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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