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Clinical Trial Details — Status: Completed

Administrative data

NCT number NCT06240793
Other study ID # 2023/267
Secondary ID
Status Completed
Phase N/A
First received
Last updated
Start date June 15, 2023
Est. completion date December 15, 2023

Study information

Verified date January 2024
Source Ankara University
Contact n/a
Is FDA regulated No
Health authority
Study type Interventional

Clinical Trial Summary

Lumbar radicular pain affects the person's quality of life. The most common cause of lumbar radicular pain is disc herniation. In radicular pain due to lumbar disc herniation, epidural steroid injections are frequently applied to patients who do not benefit from medical treatment and physical medicine modalities. Epidural steroid injection inhibits the synthesis and release of pro-inflammatory substances that develop as a result of mechanical compression.In the transforaminal epidural technique, the solution is administered to the anterior epidural space and spreads to the ipsilateral periradicular area. The applied solution does not cross the midline and there is no contralateral drug spread. Although bilateral transforaminal epidural steroid injection is recommended in unilateral lumbosacral disc herniation because the inflammation is bilateral, unilateral transforaminal steroid injection has been applied in most studies. We aimed to to evaluate the effects of unilateral and bilateral transforaminal epidural steroid injection on pain intensity, functionality and medication use in unilateral lumbosacral disc herniation


Description:

Lumbar radicular pain is a condition that is very common The lifetime incidence of lumbar radicular pain is up to 43%. The most common cause of lumbar radicular pain is disc herniation. Other reasons; spinal stenosis, tumor, infection, spondylosis, spondylolisthesis, ligamentum flavum hypertrophy and synovial cyst. Lumbar disc herniation is most commonly located at L4-5 and L5-S1. Nerve compression due to disc herniation can occur in the spinal canal, lateral recess, neuroforaminal or extraforaminal region. Inflammatory and mechanical reactions between the intervertebral disc, posterior longitudinal ligament and nerve roots play a role in the development of radicular pain. Chemical mediators released from the herniated disc increase the inflammatory response, and prostaglandin is released due to phospholipase A2 production. This situation results in radicular pain. Epidural steroid injections are frequently applied to patients in the treatment of radicular pain who do not benefit from medical treatment (non-steroidal anti-inflammatory analgesic, opioid, gabapentin, pregabalin) and physical medicine modalities. Epidural steroid injections can be administered via interlaminar, transforaminal or caudal routes. Epidural steroid injection inhibits the synthesis and release of pro-inflammatory substances that develop as a result of mechanical compression. In the transforaminal technique, the solution is administered to the anterior epidural space and spreads to the ipsilateral periradicular area. The applied solution does not cross the midline and there is no contralateral drug spread. In interlaminar epidural steroid injection, the solution crosses the midline and spreads bilaterally; but it remains in the posterior epidural area. Injection applied to the anterior epidural area adjacent to the nerve root via the transforaminal route is target-specific and a more effective form of treatment. In a study researchers reported that there was a greater decrease in pain intensity in patients with spinal stenosis with bilateral transforaminal epidural injection compared to interlaminar epidural injection. In another study, transforaminal injection was found to be superior in pain palliation compared to interlaminar injection in symptomatic lumbar disc herniation. Although there are studies in the literature comparing the advantages of epidural injection methods in lumbar disc herniation, there are no studies comparing the clinical effect of unilateral and bilateral transforaminal injection. Although bilateral transforaminal epidural steroid injection is recommended in unilateral lumbosacral disc herniation because the inflammation is bilateral, unilateral transforaminal steroid injection has been applied in most studies. (9- This study aims to evaluate the effects of unilateral and bilateral transforaminal epidural steroid injection on pain intensity, functionality and medication use in unilateral lumbosacral disc herniation and to observe whether they are superior to each other. A single-center, prospective randomized controlled study will be conducted at Ankara University Faculty of Medicine, Department of Algology. Within the scope of the study, patients with radicular pain radiating to the unilateral lower extremities due to lumbosacral disc herniation will be evaluated with Magnetic Resonance Imaging (MRI) and physical examination between 1.6.2023 and 1.10.2023. The study included patients between the ages of 18 and 65, who had unilateral lumbosacral radicular pain for at least 3 months, whose MRI and physical examination confirmed lumbosacral disc herniation, who developed pain secondary to unilateral lumbosacral disc herniation, who did not respond to conservative treatment (medical and physical medicine modalities), and 128 patients with pain intensity of 4 and above measured using Numeric Rating Scala (NRS) will be included. Patients with previous lumbar surgery, patients with psychiatric illnesses who are unstable/not controlled by medical treatment, pregnant patients, patients with bleeding diathesis, patients who have received epidural steroid injection within the last year, patients who are exposed to substances given during the procedure (local anesthetic, steroid, contrast material). Patients with known allergies, scoliosis, spondylolisthesis, central canal stenosis, compression fracture, previous discitis, sequestered disc, and bilateral disc herniation will be excluded from the study. Patients will receive epidural steroid injection through a unilateral or bilateral transforaminal approach. Within the scope of the study, patients with unilateral lumbosacral disc herniation and who are deemed suitable for transforaminal epidural steroid injection will be numbered in the order they are included in the study. Patients given an odd number will receive unilateral transforaminal epidural steroid injection, and patients given an even number will receive bilateral transforaminal epidural steroid injection. Transforaminal epidural steroid injections will be administered by Hanzade Aybüke Ünal. Pre-procedure and post-procedure evaluations of the patients will be recorded by Ahmet Basari, who is blind to the procedure performed. Demographic information of the patients, including age, gender, comorbidities, pain duration, and disc herniation level, will be recorded before the procedure. Before the procedure, pain intensity will be evaluated using the NRS 11 scale, and functionality will be evaluated using the ODI. The amount of medication used by the patients (non-steroidal anti-inflammatory analgesics, opioids, gabapentin, pregabalin) will also be noted. Patients will be contacted by phone at 1st week, 1st month and 3rd month to obtain information about NRS and ODI. During the specified time periods, pain intensity will be recorded using the NRS 11 scale, functionality will be recorded using the ODI, and medication use (non-steroidal anti-inflammatory analgesic, opioid, gabapentin, pregabalin) will be recorded. Additionally, possible complications in patients will also be recorded. A 50% or more reduction in pain intensity will be considered a response to treatment.


Recruitment information / eligibility

Status Completed
Enrollment 128
Est. completion date December 15, 2023
Est. primary completion date October 15, 2023
Accepts healthy volunteers No
Gender All
Age group 18 Years to 65 Years
Eligibility Inclusion Criteria: - Patients aged 18-65 - Patients with unilateral lumbosacral radicular pain for at least 3 months - Lumbosacral radicular pain is confirmed by Magnetic Resonance Imaging (MRI) and physical examination and the pain is secondary to unilateral lumbosacral disc herniation. - Patients who did not respond to conservative treatment (medical and physical medicine modalities) - Pain intensity measured using Numeric Rating Scala (NRS) is 4 or more Exclusion Criteria: - Patients with previous lumbar surgery - Presence of psychiatric disease that is unstable/not controlled by medical treatment - Pregnant patients - Those with bleeding diathesis - Patients who received epidural steroid injection within the last year - Patients with known allergies to the substances administered during the procedure (local anesthetic, steroid, contrast material) - Patients with scoliosis, spondylolisthesis, central canal stenosis, compression fracture, previous discitis, sequestered disc, bilateral disc herniation

Study Design


Related Conditions & MeSH terms


Intervention

Procedure:
unilateral transforaminal epidural steroid block
unilateral transforaminal epidural steroid block
bilateral transforaminal epidural steroid block
bilateral transforaminal epidural steroid block

Locations

Country Name City State
Turkey Ankara University Ankara

Sponsors (1)

Lead Sponsor Collaborator
Ankara University

Country where clinical trial is conducted

Turkey, 

References & Publications (6)

Germann C, Gotschi T, Sutter R. Predictive value of immediate pain relief after lumbar transforaminal epidural injection with local anesthetics and steroids for single level radiculopathy. Skeletal Radiol. 2022 Oct;51(10):1975-1985. doi: 10.1007/s00256-022-04051-3. Epub 2022 Apr 8. — View Citation

Konstantinou K, Dunn KM. Sciatica: review of epidemiological studies and prevalence estimates. Spine (Phila Pa 1976). 2008 Oct 15;33(22):2464-72. doi: 10.1097/BRS.0b013e318183a4a2. — View Citation

Lee JH, An JH, Lee SH. Comparison of the effectiveness of interlaminar and bilateral transforaminal epidural steroid injections in treatment of patients with lumbosacral disc herniation and spinal stenosis. Clin J Pain. 2009 Mar-Apr;25(3):206-10. doi: 10.1097/AJP.0b013e3181878f9e. — View Citation

Liu J, Zhou H, Lu L, Li X, Jia J, Shi Z, Yao X, Wu Q, Feng S. The Effectiveness of Transforaminal Versus Caudal Routes for Epidural Steroid Injections in Managing Lumbosacral Radicular Pain: A Systematic Review and Meta-Analysis. Medicine (Baltimore). 2016 May;95(18):e3373. doi: 10.1097/MD.0000000000003373. — View Citation

Makkar JK, Gourav KKP, Jain K, Singh PM, Dhatt SS, Sachdeva N, Bhadada S. Transforaminal Versus Lateral Parasagittal Versus Midline Interlaminar Lumbar Epidural Steroid Injection for Management of Unilateral Radicular Lumbar Pain: A Randomized Double-Blind Trial. Pain Physician. 2019 Nov;22(6):561-573. — View Citation

Schaufele MK, Hatch L, Jones W. Interlaminar versus transforaminal epidural injections for the treatment of symptomatic lumbar intervertebral disc herniations. Pain Physician. 2006 Oct;9(4):361-6. — View Citation

Outcome

Type Measure Description Time frame Safety issue
Primary pain severity In patients who received unilateral and bilateral transforaminal steroid injection, pain severity change by using Numeric Ratin Scala was observed 3 months after the procedure. 3 months
Secondary functionality We evaluated the effect of unilateral and bilateral transforaminal epidural steroid injection on functionality in a 3-month period using the Oswestry Disability Index. 3 months
Secondary medication use We evaluated the effect of unilateral and bilateral transforaminal epidural steroid injection on medication use in a 3-month period 3 months
Secondary Complication We detected complications of unilateral and bilateral transforaminal epidural steroid injection application in a 3-month period. 3 months
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