Bilateral Transforaminal Epidural Steroid Injections for Degenerative Lumbar Spinal Stenosis

October 22, 2015 updated by: Mustafa Farooque, MD, Marshfield Clinic Research Foundation

Effectiveness of Bilateral Transforaminal Epidural Steroid Injections in Degenerative Lumbar Spinal Stenosis Patients With Neurogenic Claudication: A Prospective Outcome Study

The most common forms of injection used for the treatment of degenerative lumbar spinal stenosis (DLSS) patients with neurogenic claudication (NC) are the caudal and inter-laminar epidural injections of anesthetic and steroid. Unilateral transforaminal epidural steroid injections (TESI) are also used to alleviate patients' symptoms of NC from DLSS, particularly in patients whose level of stenosis is L4-5 or higher. However, these unilateral injections do not cross the midline, so in cases of lower extremity pain and symptoms on both sides, a bilateral TESI would probably be more beneficial.

To date, there have not been any well designed prospective studies to determine the effectiveness of bilateral TESI below the level of stenosis in DLSS patients with NC. Therefore, the goal of this prospective, non-randomized case-series outcome study is to evaluate the effectiveness of BTESI in alleviating symptoms of NC, as well as improving function in patients with DLSS. The hypothesis is that BTESI at the level below the most stenotic segment of the central canal of the lumbar spine decreases symptoms of NC and improves function in patients with DLSS.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Terminated

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Actual)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
26

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • United States
    • Wisconsin
      • Marshfield, Wisconsin, United States, 54449
        • Marshfield Clinic

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

40 years to 90 years (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Symptoms of back/buttock/leg pain (NOT radicular pain) in a neurogenic claudicatory fashion, relieved by stooping or sitting down, for at least 3 months with no or poor response to conservative treatment (analgesics, NSAIDs, or physical therapy)
  • Patients with bilateral buttock and/or bilateral lower extremity pain in a neurogenic fashion with or without lower back pain
  • Radiologic documentation of degree of degenerative lumbar spinal stenosis (DLSS)
  • MRI/CT showing at least moderate central canal spinal stenosis (neuro-radiologist definition) with symptoms correlating with stenosis (symptoms of back/buttock/leg pain without unilateral radicular pain in a neurogenic claudicatory fashion, relieved by stooping or sitting down)
  • Patients choosing to receive BTESI as their next treatment option, following discussions with their spine doctor
  • Patients who can give informed consent, could tolerate the procedure, and who are able to understand and answer the forms and questionnaires properly.

Exclusion Criteria:

  • Radiologic spinal stenosis without symptoms of spinal stenosis
  • Symptoms of neurogenic claudication without at least moderate degree of radiologic spinal stenosis
  • Patients with specific lumbo-sacral radicular symptoms or radiculopathy (radicular pain secondary to a single nerve root compression/inflammation; usually follows a specific dermatome in lower extremities; unilateral radiculopathy either from disc herniation or lateral recess stenosis)
  • Patients with vascular claudication (pain in the legs secondary to arterial insufficiency)
  • Previous lumbo-sacral surgery
  • Any condition that does not allow the patient to stand and/or walk for any length of time (e.g., COPD, severe lung disease, etc.)
  • Patients with symptomatic hip joint pathology concurrent with spinal stenosis
  • A coexisting musculoskeletal condition that would negate functional improvement from the injection (e.g., severe Parkinson disease, hemiparesis, etc.)
  • Malignancy or infection to the spine
  • Another pain generating condition that would mask the improvement provided by the injection
  • Patients who had lumbar epidural steroid injections within the past six months
  • Significant psychologic diagnosis and/or dementia
  • Patients receiving workman's compensation benefit
  • Patients unable to give consent on their own, or who are not able to understand and answer the forms and questionnaires, or their answers will not be reliable.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Supportive Care
  • Allocation: N/A
  • Interventional Model: Single Group Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Experimental: BTESI
a prospective, non-randomized, case series investigating bilateral transforaminal epidural steroid injections (BTESI)
Drug: bilateral transforaminal epidural steroid injections
BTESI with local anesthetic and steroid, and the use of x-ray contrast, under fluoroscopy guidance performed by the PI. 10mg of dexamethasone (1cc) mixed with 1cc of 2% preservative-free xylocaine (lidocaine) will be injected on each side of the stenotic segment under fluoroscopic guidance after confirming epidural x-ray contrast (1-2cc) spread right before the steroid mixed with local anesthetic injection. The injection may be repeated, but not before 2 weeks after the first injection.
Other Names:
  • BTESI

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Change From Baseline Pain Score at 6 Months
Time Frame: baseline (pre-1st injection) to 6 months post-1st injection
change from baseline (pre-1st injection) pain score, based on a numeric pain scale of 0-10(most severe pain), at 6 months post-1st injection
baseline (pre-1st injection) to 6 months post-1st injection

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Change From Baseline Swiss Spinal Stenosis Score at 6 Months
Time Frame: baseline (pre-1st injection) to 6 months post-1st injection
The Swiss spinal stenosis score is a questionnaire composed of 18 multiple choice questions designed to give information as to how the patient's back and leg pain is affecting their ability to manage everyday life. The Swiss spinal stenosis (SSS) questionnaire consists of 12 baseline questions asked of all participants prior to injection and an additional 6 questions asked at each time point post-treatment. The initial 12 questions assess reliability and condition at baseline while the 6 post-treatment questions assess treatment satisfaction. All questions ask the patient to assess symptoms over the previous month with a total maximum score for the initial 12 questions of 53 and a total maximum score of 24 for the 6 additional questions. The final total score is expressed as a percentage of the maximum possible score. Total score increases with worsening disability.
baseline (pre-1st injection) to 6 months post-1st injection
Change From Baseline Oswestry Disability Index at 6 Months
Time Frame: baseline (pre-1st injection) to 6 months post-1st injection
The 2 questions from this Index pertaining to Standing and Walking are being utilized to assess changes in duration of standing and walking in these patients. The two sections of the Oswestry Disability Index (ODI) used in the present study were those related to walking and standing (sections 4 and 6). For each section, the total possible score is 5 and overall ODI score was expressed as a percentage of the maximum possible score (10). Total score increases with worsening disability.
baseline (pre-1st injection) to 6 months post-1st injection

Other Outcome Measures

Other Outcome Measures

For clinical trials, a planned measurement described in the protocol that is used to determine the effect of an intervention/treatment on participants. For observational studies, a measurement or observation that is used to describe patterns of diseases or traits, or associations with exposures, risk factors, or treatment. Types of outcome measures include primary outcome measure and secondary outcome measure.
Outcome Measure
Time Frame
Change From Baseline Pain Medication Need/Use at 6 Months
Time Frame: baseline (pre-1st injection) to 6 months post-1st injection
baseline (pre-1st injection) to 6 months post-1st injection

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Marshfield Clinic Research Foundation

Investigators

Investigators

A researcher involved in a clinical study. Related terms include site principal investigator, site sub-investigator, study chair, study director, and study principal investigator.
  • Principal Investigator: Mustafa Farooque, MD, Marshfield Clinic/MCRF
  • Principal Investigator: James Burmester, PhD, Marshfield Clinic Research Foundation

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
May 1, 2013

Primary Completion (Actual)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
June 1, 2014

Study Completion (Actual)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
June 1, 2014

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
November 18, 2013

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
November 21, 2013

First Posted (Estimate)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
November 26, 2013

Study Record Updates

Last Update Posted (Estimate)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
November 24, 2015

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
October 22, 2015

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
October 1, 2015

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • FAR10112

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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