Quadratus Lumborum Block for Lumbar Spinal Surgery

The Efficacy of Ultrasound-Guided Quadratus Lumborum Block for Pain Management Following Lumbar Spinal Surgery

Spine surgery in thoracolumbar region is one of the most common surgeries performed for the treatment of leg and back pain. Pain management is especially important for these patients since chronic pain often occurs after surgery. Severe pain may occur at postoperative period in patients following lumbar disc herniation (LDH) operation. Postoperative effective pain treatment provides early mobilization and shorter hospital stay, thus complications due to hospitalization such as infection and thromboembolism may be reduced.

Ultrasound-guided quadratus lumborum block (QLB) is a fascial plane block where local anesthetic is injected adjacent to the quadratus lumborum muscle with the goal of anesthetizing the thoracolumbar nerves.

The aim of this study is to evaluate the efficacy of US-guided QLB for postoperative analgesia management after lumbar disc herniation-laminectomy surgery. The primary aim is to evaluate postoperative pain scores (VAS), the secondary aim is to evaluate use of rescue analgesia and adverse effects (allergic reaction, nausea, vomiting).

Study Overview

• Status: Completed
• Conditions: Lumbar Disc Herniation
• Intervention / Treatment: Drug: Quadratus Lumborum Block

Detailed Description

Spine surgery in thoracolumbar region is one of the most common surgeries performed for the treatment of leg and back pain. Pain management is especially important for these patients since chronic pain often occurs after surgery. Severe pain may occur at postoperative period in patients following lumbar disc herniation (LDH) operation. Postoperative effective pain treatment provides early mobilization and shorter hospital stay, thus complications due to hospitalization such as infection and thromboembolism may be reduced.

Opioids are one of the most preferred drugs among the analgesic agents. Parenteral opioids are generally performed for patients after surgery. However opioids have undesirable adverse events such as nausea, vomiting, itching, sedation and respiratory depression (opioid-related adverse events).

Various methods may be performed to reduce the use of systemic opioids and for effective pain treatment. US-guided interfascial plane blocks have been used increasily due to the advantages of ultrasound in anesthesia practice. Ultrasound-guided quadratus lumborum block (QLB) is a fascial plane block where local anesthetic is injected adjacent to the quadratus lumborum muscle with the goal of anesthetizing the thoracolumbar nerves.

The aim of this study is to evaluate the efficacy of US-guided QLB for postoperative analgesia management after lumbar disc herniation-laminectomy surgery. The primary aim is to evaluate postoperative pain scores (VAS), the secondary aim is to evaluate use of rescue analgesia and adverse effects (allergic reaction, nausea, vomiting).

• Study Type: Interventional
• Enrollment (Actual): 60
• Phase: Not Applicable

Contacts and Locations

Study Locations

• Turkey
  • Bagcilar
    • Istanbul, Bagcilar, Turkey, 34070
      • Istanbul Medipol University Hospital

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: 18 years to 65 years (Adult, Older Adult)
• Accepts Healthy Volunteers: No
• Genders Eligible for Study: All

Description

Inclusion Criteria:

• American Society of Anesthesiologists (ASA) classification I-II
• Scheduled for lumbar disc herniation surgery under general anesthesia

Exclusion Criteria:

• Bleeding diathesis
• Receiving anticoagulant treatment
• Known local anesthetics and opioid allergy
• Infection of the skin at the site of the needle puncture
• Pregnancy or lactation
• Patients who do not accept the procedure

Study Plan

How is the study designed?

Design Details

• Primary Purpose: Treatment
• Allocation: Randomized
• Interventional Model: Parallel Assignment
• Masking: Double

Number of Arms

2

Arms and Interventions

Participant Group / Arm	Intervention / Treatment
Active Comparator: Group Q = QLB group; Patients will be administered paracetamol 1 gr IV every 8 hours in the postoperative period. Postoperative patient evaluation will be performed by a pain nurse blinded to the procedure.	Drug: Quadratus Lumborum Block; The block procedure will be applied after the surgery and before extubation with patients in the prone position by using US (Vivid Q, GE Healthcare, US). Under aseptic conditions using 10% povidone iodine, the convex probe will be covered with a sterile sheath and a 22G, 100 mm block needle (Braun Stimuplex Ultra 360, Germany) will be used. After visualizing the abdominal muscles with the anterior approach, the needle will be punctured in the Petit triangle and 5 ml of saline will be injected into the anterolateral border of the quadratus lumborum muscle. After the block location is confirmed, 15 ml of 0.25% bupivacaine will be injected. The same process will be applied to the opposite side (30 ml totally).
No Intervention: Group C = Control group; Patients will be administered paracetamol 1 gr IV every 8 hours in the postoperative period. Postoperative patient evaluation will be performed by a pain nurse blinded to the procedure. Wound local anesthetic infiltration will be applied to the patients in the control group.

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Postoperative pain scores	Change from Baseline Pain Scores at Postoperative 24 hours.	Postoperative 24 hours period

Secondary Outcome Measures

Outcome Measure	Measure Description	Time Frame
The use of rescue analgesia	Tramodol using	Postoperative 24 hours period

Collaborators and Investigators

• Sponsor: Medipol University

Publications and helpful links

General Publications

• Ueshima H, Otake H, Lin JA. Ultrasound-Guided Quadratus Lumborum Block: An Updated Review of Anatomy and Techniques. Biomed Res Int. 2017;2017:2752876. doi: 10.1155/2017/2752876. Epub 2017 Jan 3.
• Elsharkawy H, El-Boghdadly K, Barrington M. Quadratus Lumborum Block: Anatomical Concepts, Mechanisms, and Techniques. Anesthesiology. 2019 Feb;130(2):322-335. doi: 10.1097/ALN.0000000000002524. No abstract available.
• Ueshima H, Otake H. RETRACTED: Clinical experience of anterior quadratus lumborum block after lumber surgery. J Clin Anesth. 2017 Feb;37:131. doi: 10.1016/j.jclinane.2016.12.014. Epub 2017 Jan 9. No abstract available.

Study record dates

Study Major Dates

• Study Start (Actual): August 2, 2021
• Primary Completion (Actual): December 30, 2021
• Study Completion (Actual): January 1, 2022

Study Registration Dates

• First Submitted: July 17, 2021
• First Submitted That Met QC Criteria: July 26, 2021
• First Posted (Actual): July 28, 2021

Study Record Updates

• Last Update Posted (Actual): February 11, 2022
• Last Update Submitted That Met QC Criteria: February 10, 2022
• Last Verified: February 1, 2022

More Information

Terms related to this study

• Keywords: Postoperative pain management; Quadratus Lumborum Block; Lumbar Disc Herniation
• Additional Relevant MeSH Terms: Musculoskeletal Diseases; Pathological Conditions, Anatomical; Spinal Diseases; Bone Diseases; Hernia; Intervertebral Disc Displacement
• Other Study ID Numbers: Medipol Hospital 19

Plan for Individual participant data (IPD)

• Plan to Share Individual Participant Data (IPD)?: NO
• IPD Plan Description: Individual participant data (IPD) will not be shared

Drug and device information, study documents

• Studies a U.S. FDA-regulated drug product: No
• Studies a U.S. FDA-regulated device product: No