NCT06801574

Brief Summary

Lumbar spinal stenosis is a degenerative condition characterized by the narrowing of the space surrounding the neurovascular structures of the lumbar vertebrae, resulting from age-related changes in the intervertebral discs, ligamentum flavum, and facet joints. It commonly causes unilateral pain in the lower back, hips, and legs, often described as cramping or burning. Postoperative pain management in these cases frequently involves oral opioids or intravenous administration using patient-controlled analgesia devices. However, opioids are associated with side effects such as reduced gastrointestinal motility, urinary retention, and respiratory depression. To mitigate these issues, local anesthetic wound infiltration is widely employed by surgeons to manage postoperative pain and reduce opioid consumption following lumbar spinal surgeries. The primary aim of this study is to compare the postoperative efficacy of three different analgesic methods in patients undergoing elective lumbar fixation surgery, using the percentage change in salivary opiorphin levels as a marker. Additionally, the study seeks to evaluate the correlation between these changes and postoperative pain scores, as well as the amount of opioids consumed.

Trial Health

57
Monitor

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Enrollment
84

participants targeted

Target at P50-P75 for not_applicable

Timeline
Completed

Started Feb 2025

Geographic Reach
1 country

1 active site

Status
recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

January 25, 2025

Completed
5 days until next milestone

First Posted

Study publicly available on registry

January 30, 2025

Completed
2 days until next milestone

Study Start

First participant enrolled

February 1, 2025

Completed
1 year until next milestone

Primary Completion

Last participant's last visit for primary outcome

February 1, 2026

Completed
28 days until next milestone

Study Completion

Last participant's last visit for all outcomes

March 1, 2026

Completed
Last Updated

October 3, 2025

Status Verified

February 1, 2025

Enrollment Period

1 year

First QC Date

January 25, 2025

Last Update Submit

September 30, 2025

Conditions

Keywords

lumbar fixation surgeryerector spinal plane blocklocal infiltration

Outcome Measures

Primary Outcomes (1)

  • Comparison of the Postoperative Efficacy of Analgesic Methods Using Salivary Opiorphin Levels

    The primary aim of this study is to compare the postoperative efficacy of three different analgesic methods applied to patients undergoing elective lumbar fixation surgery by assessing the percentage change in salivary opiorphin levels. Additionally, the study aims to evaluate the correlation of these changes with postoperative Visual Analog Scale (VAS) pain scores and the amount of opioids consumed.

    postoperative 24 hours

Secondary Outcomes (3)

  • Total amount of opioid consumption

    Postoperative 24 hours

  • Pain scores in first 24 hours at rest and at movement

    postoperative 24 hours

  • Correlation between basal Salivary Opiorphin Levels and total 24 hours opioid consumption and pain scores

    postoperative 24 hours

Study Arms (3)

Group Erector Spinae Plane Block

ACTIVE COMPARATOR
Other: Erector Spinae Plane Block

Group Local Infiltration

ACTIVE COMPARATOR
Other: infiltration

Group Control

NO INTERVENTION

Interventions

After the surgical team places the final suture, while the patient is in the prone position, an ultrasound-guided ESP (Erector Spinae Plane) block will be administered bilaterally using a block needle. A total of 40 mL of 0.25% bupivacaine will be injected.

Group Erector Spinae Plane Block

Before the surgical team closes the incision, local infiltration with 40 mL of 0.25% bupivacaine will be performed at the surgical site.

Group Local Infiltration

Eligibility Criteria

Age18 Years - 65 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Patients scheduled to undergo lumbar fixation surgery under general anesthesia
  • aged between 18 and 65 years,
  • American Society of Anesthesiologists physical status classification of I-II

You may not qualify if:

  • Patients with a known allergy to local anesthetics.
  • Patients who used opioid analgesics within 48 hours prior to sample collection.
  • Patients with a history of smoking or alcohol consumption.
  • Patients with conditions affecting salivary flow, such as xerostomia or those who have undergone radiotherapy.
  • Patients with infectious diseases known to be transmissible through saliva.
  • Patients with an ASA physical status classification of III or higher.
  • Patients unable to use a patient-controlled analgesia (PCA) device.
  • Patients who do not consent to the study procedures.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Ataturk University

Erzurum, Turkey (Türkiye)

RECRUITING

Related Publications (3)

  • Deng K, Huang K, Wu GF. Ultrasound-guided erector spinae plane block in posterior lumbar surgery (Review). Biomed Rep. 2024 Apr 22;20(6):95. doi: 10.3892/br.2024.1783. eCollection 2024 Jun.

  • Hong B, Baek S, Kang H, Oh C, Jo Y, Lee S, Park S. Regional analgesia techniques for lumbar spine surgery: a frequentist network meta-analysis. Int J Surg. 2023 Jun 1;109(6):1728-1741. doi: 10.1097/JS9.0000000000000270.

  • Lurie J, Tomkins-Lane C. Management of lumbar spinal stenosis. BMJ. 2016 Jan 4;352:h6234. doi: 10.1136/bmj.h6234.

Study Officials

  • Feyza Simsek

    Dr

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
QUADRUPLE
Who Masked
PARTICIPANT, CARE PROVIDER, INVESTIGATOR, OUTCOMES ASSESSOR
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Dr

Study Record Dates

First Submitted

January 25, 2025

First Posted

January 30, 2025

Study Start

February 1, 2025

Primary Completion

February 1, 2026

Study Completion

March 1, 2026

Last Updated

October 3, 2025

Record last verified: 2025-02

Data Sharing

IPD Sharing
Will not share

Locations