Imaging for SIJ Injection Therapy

April 29, 2021 updated by: Jiang Wu, University of Washington

The Clinic Application of CBCT XperGuide in Interventional Sacroiliac Joint Pain Therapy

The Research question: Among two standard image guidance techniques [2-dimension (2-D) conventional Fluoroscopy Versus 3-dimension (3-D) Cone-Beam Computed Tomography (CBCT)], which is the better guidance for Sacroiliac Joint Injection therapy and should be used first?

The specific aims: To detect the difference of the first-time success rate, the cross-over rate, the procedural time, the radiation exposure, the incidence of adverse events/complications, and overall satisfaction score between the 2-D Fluoroscopy versus 3-D CBCT guidance for SIJ injection.

Study Overview

Status

Withdrawn

Intervention / Treatment

Detailed Description

There are no published research studies comparing the injection success rates, procedure duration, radiation exposure, and patient comfort between the two standard imaging systems. The investigators hypothesize that the newer 3-D Cone-beam Based Computer Tomography (CBCT) image system will result in higher success rates, shorter procedure times, fewer image snapshots during the procedure, and less patient discomfort than conventional 2-D fluoroscopy imaging. Although the radiation exposure from one-time low-dose 3-D CT reconstruction with CBCT image system at the beginning of the procedure is higher, the number of later snapshots with the 3-D system is likely to be significantly lower. Therefore the 3-D system may result in overall equivalent radiation exposure to the 2-D system.

A statistical power analysis was conducted and determined that a sample size of 100 (50 per group) will give 80% power for detecting a difference if the true rates are 65% (2-D Fluoroscopy guidance) and 90% (3-D CBCT guidance).

For this study, patients undergoing SIJ injection will be randomized to either Fluoroscopy guidance or CBCT guidance. The primary outcome measure is injection success within 3 attempts of needle placement. Statistical analysis will use the Chi-square test to test whether the rate of injection success differs between the two methods of guidance. In order to provide appropriate clinical care, whenever success is not achieved with the initial guidance method then injection using the other guidance method will be attempted. However, the analysis will only consider whether or not injection success was achieved with the initial guidance method to which the subject was randomized. Whether or not injection success was achieved after crossing over to the other guidance method is not relevant to the primary analysis.

In summary, the investigators would like to formally analyze the differences in these two standard image guidance options in SIJ injection therapy. The investigators propose to randomly select the first imaging system that will be utilized during standard medical care in patients scheduled to undergo an SIJ injection. Presumed that there is a difference in success rate between these two standard images, the imaging procedures are considered to be a part of the research.

Study Type

Interventional

Phase

  • 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

    • Washington
      • Seattle, Washington, United States, 98105
        • UW Center for Pain Relief

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

Ages Eligible for Study

18 years and older (ADULT, OLDER_ADULT)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  1. Age 18 and older
  2. Clinically diagnosed with sacroiliac joint pain
  3. Medically indicated for sacroiliac joint injection (SIJ) therapy (with chronic sacroiliac joint pain, debilitating with pain score > 4 and not responsive to conservative medical management)
  4. Financial pre-authorization of SIJ injection approved by insurance
  5. English speaking
  6. Scheduled for SIJ injection on the Allura machine

Exclusion Criteria:

1. Patient refusal or inability to study informed consent

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: DIAGNOSTIC
  • Allocation: RANDOMIZED
  • Interventional Model: CROSSOVER
  • Masking: SINGLE

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Active Comparator: Group 1
conventional 2-D fluoroscopy guidance as the first choice of guidance
Image-guided sacroiliac joint injection under fluoroscopy or CT guidance and the success of intraarticular access was demonstrated by inter-articular contrast spread (the standard of care, not part of study intervention).
Active Comparator: Group 2
3-D CT guidance as the first choice of guidance
Image-guided sacroiliac joint injection under fluoroscopy or CT guidance and the success of intraarticular access was demonstrated by inter-articular contrast spread (the standard of care, not part of study intervention).

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
The success rate of sacroiliac joint injection
Time Frame: during the procedure periods
the difference between the success rate of Sacroiliac Joint injection under 3-D CBCT and that of 2-D fluoroscopy guidance
during the procedure periods
The crossover rate from the first choice guidance to back-up guidance
Time Frame: during the procedure periods
The crossover rate from the first choice guidance to back-up guidance after three best attempts
during the procedure periods

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Procedure Radiation Dose
Time Frame: during the procedure periods
Measurement of radiation dose in Rads during procedure.
during the procedure periods
Procedure Contrast Dose
Time Frame: during the procedure periods
Measurement of contrast dose in mL during procedure.
during the procedure periods
Procedure Duration
Time Frame: during the procedure periods
Length of time for procedure measured in minutes.
during the procedure periods
Incidence of Treatment-Emergent Adverse Events
Time Frame: during the procedure periods
Tachycardia, hypertension, vasovagal reaction, procedural abortion, etc.
during the procedure periods
Procedure Pain
Time Frame: during the procedure periods
Pre-procedure typical baseline pain and post-procedure typical pain measured on a 0-10 Visual Analog Scale. This scale measures the pain intensity and percentage of pain relief. The left zero end represents no pain and right 10 end represents worst pain imaginable.
during the procedure periods
Patient Satisfaction Score
Time Frame: during the procedure periods
Procedure Satisfaction Score measured on a 0-10 Visual Analog Scale. The left zero end represents not satisfied at all and the right 10 end represents 100% satisfaction.
during the procedure periods
Needle placement attempts
Time Frame: during the procedure periods
Number of attempts to place needle for procedure.
during the procedure periods

Collaborators and Investigators

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

Collaborators

Investigators

  • Principal Investigator: Jiang Wu, MD, University of Washington

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

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 (Actual)

May 31, 2019

Primary Completion (Actual)

April 7, 2021

Study Completion (Actual)

April 7, 2021

Study Registration Dates

First Submitted

June 7, 2019

First Submitted That Met QC Criteria

June 18, 2019

First Posted (Actual)

June 19, 2019

Study Record Updates

Last Update Posted (Actual)

May 5, 2021

Last Update Submitted That Met QC Criteria

April 29, 2021

Last Verified

April 1, 2021

More Information

Terms related to this study

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

IPD Plan Description

Patient's IPD is confidential information and well protected under HIPPA law, and reinforced by the Institute IRB policy

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

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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