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This project involves the assessment of the efficacy of two different image guided techniques in patients with low back pain due to arthritis of the sacroiliac joint (SIJ). Intra-articular injection of local anesthetics and steroids is performed to relieve pain originating from the SIJ. Fluoroscopy has been used traditionally for image guidance for this procedure but there is a growing interest in use of ultrasound (US) for this procedure. US avoids radiation exposure to the patient and the health care team (HCT) and is less expensive. We aim to compare procedural efficacy related outcomes for SIJ injections performed using these image-guided modalities.
The study is a prospective, randomized trial. Patients with low back pain which is diagnosed secondary to SIJ disease will be identified beforehand in clinic and offered a therapeutic joint injection. Informed consent will be obtained. Patients will be randomized for SIJ block with 3 mL of 0.25% bupivacaine with 1:200,000 epinephrine and 40 mg depomedrol using guidance with ultrasound or fluoroscopy. In both groups, confirmation of needle placement will be obtained using contrast injection imaging before the injection is performed. Record will be made of the number of times the needle is correctly placed into the articular space, as well as the number of attempts to do so. The final position of the needle will be recorded. Pain scores will be assessed before the procedure, as well as post-procedure at 24 and 72 hours, as well as 1 week, 1 month, and 3 months. Patients will keep a pain diary and will be followed up at 3 months time in clinic.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Ultrasound Guided SIJ Injection | Experimental | Needle placement will be performed under US guidance. Fluoroscopy will be used to confirm needle placement prior to medication injection. |
|
| Xray Guided SIJ Injection | Active Comparator | Needle placement will be performed under fluoroscopy. |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Sacroiliac Joint Injection | Procedure | Medication injected into the sacroiliac joint: Bupivicaine 3ml 0.25% with epinephrine 1/200,000 and Depo-Medrol 40mg. |
|
| Measure | Description | Time Frame |
|---|---|---|
| Incidence of needle placement into SIJ | Assessed at time of injection | |
| Pain - Numeric Rating Scale Score at 1 month | One month from time of injection |
| Measure | Description | Time Frame |
|---|---|---|
| Improvement of functional ability at 1 month | Oswestry Disability Index completed at 1 month to determine level of disability | 1 month from time of injection |
| Patient Satisfaction | 1 month from time of injection |
| Measure | Description | Time Frame |
|---|---|---|
| Assessment of complications | Complications assessed at any point until 3 months after procedure | Until 3 months after procedure |
Inclusion Criteria:
Exclusion Criteria:
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| Name | Affiliation | Role |
|---|---|---|
| Anuj Bhatia, MD, FRCPC | University Health Network, Toronto | Principal Investigator |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Toronto Western Hospital | Toronto | Ontario | M5T 2S8 | Canada |
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| ID | Term |
|---|---|
| D059350 | Chronic Pain |
| ID | Term |
|---|---|
| D010146 | Pain |
| D009461 | Neurologic Manifestations |
| D012816 | Signs and Symptoms |
| D013568 | Pathological Conditions, Signs and Symptoms |
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| Average daily consumption of opioids at 1 month | 1 month from injection |
| Patient discomfort with procedure | Measured at time of procedure |
| Number of needle readjustments | Measured at time of procedure |