ClinicalTrials.gg
CompletedNCT06503835Updated Jul 19, 2024

Efficacy of Transforaminal Epidural Steroid and Its Combination With Ozone in Lumbar Radiculopathy

An observational study in Low Back Pain, Radiculopathy Lumbar and Hernia, sponsored by Ibn Sina Hospital. Completed at 1 site in Turkey. Open to participants aged 18 Years to 75 Years. Per ClinicalTrials.gov, last updated 2024-07-19.

Sponsored by Ibn Sina Hospital · Observational

Study type
Observational
Model
Cohort
Time perspective
Retrospective
Enrollment
120
Ages
18 Years to 75 Years
Sex
All
01

Study summary

This retrospective study aimed to assess the clinical effectiveness and safety of transforaminal epidural injections of steroid and ozone mixture versus steroid alone in low back and radicular leg pain related to disk herniation.

Read the detailed description

Low back and radicular leg pain due to radiculopathy are the common presenting symptoms in the field of pain medicine.For patients with chronic low back and radicular leg pain, pain relief can be achieved through minimally invasive interventional procedures under fluoroscopic guidance. Since some patients may experience persistent pain and the potential development risk of failed back surgery syndrome, minimally invasive procedures are preferred as a pre-surgical intervention.

Interlaminar or transforaminal epidural steroid injections are the most commonly used nonsurgical interventions for disc herniation. Ozone therapy has also started to be used as frequently as steroids. Previous studies have shown that ozone can be given through intradiscally, epidural space, and paravertebral muscles. Ozone gase is thought to modulate levels of cytokines and prostaglandins, minimize reactive oxidant species levels, and improve local periganglionic circulation.

The objective of this study was to assess the short- and long-term clinical efficacy of transforaminal epidural steroid and steroid plus ozone injection in patients presenting with low back and radicular leg pain and to analyze which treatment method is most beneficial in reducing pain relief.

This was a retrospective study of 120 patients who underwent transforaminal epidural steroid or combination of steroid and ozone injection between June and December 2020 in the Ankara University Faculty of Medicine, Department of Pain Medicine.

Demographic information, pain intensity, localization, pattern (neuropathic/nonneuropathic/mix), and patients' quality of life and the treated level (the innervation territories of L2 (Lomber), L3, L4, L5, or S1 (Sacral)) were analyzed. Pain intensity was assessed with the Visual Analog Scale (VAS), and patient disability was evaluated with the Oswestry Disability Questionnaire (ODI).

One group included patients who underwent transforaminal epidural steroid and ozone injection, and another group included patients who underwent transforaminal epidural steroid injection alone. In both groups, two mL of dexamethasone (8 mg) and 3 mL of saline were used for each transforaminal epidural injection level. Patients who received combination therapy were injected 5ml of ozone at a concentration of 28 g/ml in addition to steroids for each level.

The investigators evaluated the patients' records of VAS and ODI scores on the day of the procedure and at the 24th hours (for VAS only) 1st, 3rd, 6th, and 12th months after the procedure. Patients' satisfaction was assessed using modified MacNab scale scores after the 1st and 12th months. The post-treatment results of the patients were compared between the two groups and with the baseline.

02

Conditions studied

  • Low Back Pain
  • Radiculopathy Lumbar
  • Hernia
  • Disk Herniated Lumbar

Keywords

  • Low back pain
  • Injections
  • Steroids
  • Ozone
  • Disk Herniated Lumbar
03

In context

Low Back Pain

2,922 studies on the registry are indexed under Low Back Pain; 580 are open to participants now.

This study's enrollment of 120 is above the median of 100 across 481 observational studies indexed under Low Back Pain.

Browse Low Back Pain studies →

Lead sponsor

Ibn Sina Hospital is the lead sponsor of 28 studies on the registry; none are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years to 75 Years
Sexes eligible
All
Accepts healthy volunteers
No
Sampling method
Probability sample

Study population

120 patients (age range, 18-72 years) who underwent transforaminal epidural steroid or combination of steroid and ozone injection between June and December 2020 in the Ankara University Faculty of Medicine, Department of Pain Medicine.

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Files of patients underwent transforaminal epidural or combination of steroid and ozone injection
  • Age between 18-75 years
  • (BMI) \<35,
  • VAS score ≥ 4
  • Radicular pain not responding to conservative therapy related to lumbar disk herniation on magnetic resonance imaging
  • Duration of pain of >3 months

Exclusion criteria

Exclusion Criteria:

  • Pregnancy
  • Major progressive neurologic deficits
  • Infective or inflammatory diseases
  • Uncontrolled diabetes or other severe internal comorbidities
  • (INR) > 1.2
  • Glucose-6-phosphate dehydrogenase deficiency
Terms in these criteria, in plain language(4)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Corticosteroids (steroids)

Anti-inflammatory medicines such as prednisone, prednisolone and dexamethasone — not the anabolic steroids used for muscle.

Studies differ in what they allow: check which steroid medicines, routes (tablets, injections, creams, inhalers, eye drops) and doses this study accepts.

BMI (body mass index)

Weight in kilograms divided by height in metres squared. Example: 70 kg and 1.75 m gives 70 ÷ (1.75 × 1.75) ≈ 22.9.

What counts as overweight or obesity differs between countries (some use lower cut-offs), so go by the range the study states.

Cancer (malignancy)

Malignancy means cancer. Criteria about another or earlier malignancy ask whether you have had a different cancer, usually within a set number of years.

Some are commonly allowed, such as treated skin cancers other than melanoma and early cancers removed completely — check the exceptions this study lists.

INR, PT and aPTT (clotting tests)

Blood tests of how long blood takes to clot. The INR is the prothrombin time (PT) put on a common scale; about 1 is usual for someone not taking a blood thinner.

Criteria often make an exception for people on a blood thinner such as warfarin, whose INR is raised on purpose.

05

Study design

Observational model
Cohort
Time perspective
Retrospective
Enrollment
120 participants (actual)
Patient registry
No

Groups and cohorts

  • The patients who underwent transforaminal epidural steroid and ozone injection

    Patients who received combination therapy were injected 5ml of ozone at a concentration of 28 g/ml and two mL of dexamethasone (8 mg) and 3 mL of saline for each transforaminal epidural injection level under fluoroscopy guidance

    Procedure: Fluoroscopy Guided Transforaminal Epidural Ozone Injection · Procedure: Fluoroscopy Guided Transforaminal Epidural Steroid Injection

  • The patients who underwent transforaminal epidural steroid injection alone

    Patients who received transforaminal epidural steroid injection were injected two mL of dexamethasone (8 mg) and 3 mL of saline for each transforaminal epidural injection level.

    Procedure: Fluoroscopy Guided Transforaminal Epidural Steroid Injection

Interventions

  • ProcedureFluoroscopy Guided Transforaminal Epidural Ozone Injection

    All procedures were performed under light sedation in a sterile operating room. Ozone was created by an ozone generator (Dr. J. Hänsler Ozonosan, Iffezheim, Germany). Appropriate diffusion of the non-ionic contrast agent into the periradicular and epidural area was verified through anteroposterior and lateral fluoroscopic images and the injections were then safely performed. Patients who underwent transforaminal epidural steroid plus ozone injection received additionally 5ml of ozone at a concentration of 28 g/ml for each transforaminal epidural injection level.

  • ProcedureFluoroscopy Guided Transforaminal Epidural Steroid Injection

    All procedures were performed under light sedation in a sterile operating room.Appropriate diffusion of the non-ionic contrast agent into the periradicular and epidural area was verified through anteroposterior and lateral fluoroscopic images and the injections were then safely performed. Patients who underwent transforaminal epidural steroid injection received two mL of dexamethasone (8 mg) and 3 mL of saline for each transforaminal epidural injection level

06

What researchers measure

Primary outcomes

  1. Visual Analog Scale (VAS)

    The VAS score for pain assessment ranges between 0-10 ( (0=no pain, 5=moderate pain, 10=extremely severe pain).

    Time frame: 24th hours, 1st, 3rd, 6th, and 12th months

Secondary outcomes

  1. Oswestry Disability Questionnaire (ODI)

    ODI is a questionnaire in which the level of disability increases as the total score increases. Total scores vary between 0 and 50.

    Time frame: 1st, 3rd, 6th, and 12th months

  2. MacNab Scale Scores

    The MacNab scale scores were used for success in pain decrease and include excellent, good, fair, and poor. The "excellent" and "good" results were accepted as favorable outcomes, and the "fair" and "poor" results were considered unsatisfactory

    Time frame: 1st and 12th months

07

Study locations

1 site
  • Ankara University Faculty of Medicine, İbni Sina Hospital
    Ankara, 06230, Turkey
08

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reached

Ran from Jun 2020 to primary completion in Dec 2020, 6 months.

How these figures are worked out, and which studies are left out of them.

Registered
Jul 10, 2024
First posted
Jul 16, 2024
StartActual
Jun 1, 2020
Primary completionActual
Dec 31, 2020
CompletionActual
Dec 31, 2021
Last update
Jul 19, 2024
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Jul 19, 2024, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT06503835
Lead sponsor
Ibn Sina Hospital
Responsible party
Derya Bayram (Medical Doctor, Pain Specialist, Ibn Sina Hospital) — Principal investigator
First posted
Jul 16, 2024
Start date
Jun 1, 2020
Primary completion
Dec 31, 2020
Completion
Dec 31, 2021
Last update
Jul 19, 2024

Study contacts

Derya Bayram, M.D
principal investigator · Ankara University Faculty of Medicine, Department of Pain Medicine
İbrahim Aşık, Prof. Dr
principal investigator · Ankara University Faculty of Medicine, Department of Pain Medicine

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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This study is completed, as verified in Jul 2024. You cannot join it, but the record below documents what was studied.

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