SI Joint Pain | Validity and Reliability of Diagnostic Findings of SI Joint Blocking

SI Joint Pain research study

What is the primary objective of this study?

The purpose of the trial is to confirm the validity and reliability of diagnostic SI joint blocks.

Who is eligible to participate?

Inclusion Criteria: 1. Age 21-75 at time of screening. 2. Patient has buttocks, groin and/or leg pain suspected to be from one SI joint (left or right). 3. Patient has positive Fortin finger test*. 4. Patient has a current average SI joint pain rating of at least 5 on 0-10 numerical rating scale**. 5. Patient has at least 3 positive physical SI joint examination findings in the targeted SI joint. 6. Investigator believes that diagnostic SI joint block is indicated now, and that no other (hip/back, etc.) diagnostic test is required at this time. 7. Patient has signed study-specific informed consent form. 8. Patient has the necessary mental capacity to participate and is physically able to comply with study protocol requirements (including avoiding taking pain medication 8 hours prior to and 4 hours after each scheduled block). Exclusion Criteria: 1. Patient has history of any surgical procedure of the targeted SI joint (except for prior RF ablation of the SI joint). 2. Patient has suspected bilateral SIJ pain and bilateral injections are indicated. 3. Patient has history of chronic pain syndrome (e.g., fibromyalgia). 4. Patient has any medical or other condition that would interfere with study participation or data validity. 5. Patient is currently pregnant. 6. Patient has known allergy to contrast used or local anesthetic used (bupivacaine). 7. Patient has had one or more steroid SI joint injection(s) of the targeted side in the last 3 months. 8. Patient is a prisoner or a ward of the state. 9. Patient is participating in another investigational study related to back or SI joint pain (Exclude if participating in trials other than the SIFI study (NCT01640353) or the INSITE Study (NCT01681004). Subjects on these two SI-BONE sponsored trials may be eligible for VaReFi.) 10. Patient is known or suspected drug or alcohol abuser. 11. Patient has known or suspected psychiatric disease (e.g., schizophrenia, major depression, personality disorders) that could interfere with study participation . 12. Patient is unable to isolate suspected SI joint pain to the SI joint but rather has generalized pain. 13. Patient has known or suspected alternative cause for pain at/near SI joint (e.g., lumbar disc degeneration, lumbar facet arthropathy, hip osteoarthritis or labral tear)

Which medical condition, disease, disorder, syndrome, illness, or injury is researched?

SI Joint Pain

Study Interventions

Interventions can include giving participants drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available or noninvasive approaches such as surveys, education, and interviews.

Drug:0.75% bupivacaineWeek 1: SI joint injection with .75% bupivacaine Week 2: SI joint injection with .75% bupivacaine Week 3: SI joint sham block

Drug:.75% bupivacaineWeek 1: SI join sham block Week 2: SI joint injection with .75% bupivacaine Week 3: SI joint injection with .75% bupivacaine

Drug:.75% bupivacaineWeek 1: SI join injection with .75% bupivacaine Week 2: SI join sham block Week 3: SI joint injection with .75% bupivacaine

Study Arms

Research studies and clinical trials typically have two or more research arms. An arm is a group of people who receive the same treatment in the study.

1st sequenceBlinded 3 blocks (2 bupivacaine, 1 sham block)

2nd sequenceBlinded 3 blocks (2 bupivacaine, 1 sham block)

3rd sequenceBlinded 3 blocks (2 bupivacaine, 1 sham block)

Study Status


Start Date: May 6, 2014

Completed Date: March 23, 2015

Phase: Phase 4

Type: Interventional


Primary Outcome: Numeric Rating Scale

Secondary Outcome: Subgroup analysis by diagnosis at 1 month post 3rd block (7 weeks post 1st injection) and 6 month post 3rd injection visit ( 27 weeks post 1st injection).

Study sponsors, principal investigator, and references

Principal Investigator: Aaron Calodney, MD

Lead Sponsor: SI-BONE, Inc.


More information:

Discuss Arthralgia