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Sacroiliac joint fusion versus sham operasjon for treatment of sacroiliac pain. A prospective double blinded randomized controlled multicentre study.
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Sacroiliac(SI) joint pain can lead to long-lasting severe pain and reduce physical function. It is shown to be the source of pain in 13-30% of patients with low back pain. Former surgical techniques had a high level of complications and low success rates. Newer mini-invasive surgical approaches have shown promising results in scientific studies. It is difficult to find an adequate control group for surgery as most patients already have tried conservative and alternative treatments without effect. A sham-designed study is the best alternative. This study is designed as a prospective randomized double blinded controlled mulitcenter trial. The investigators want to examine whether there is a difference in SI joint pain in patients operated with miniinvasive arthrodesis of the SI joint compared to a sham operated control group. Patients with SI joint pain are included. They will be randomized to either surgery with arthrodesis or sham surgery. Neither patient nor health personell who work with the patient after the surgery will know what has been done. The primary end point for the study is group difference in sacroiliac joint pain on the operated side after 6 months.
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Inclusion criteria
A. Patient has pain at or close to the posterior superior iliac spine (PSIS) with possible radiation into buttocks, posterior thigh or groin and can point with a single finger to the location of pain (Fortin Finger Test)
B. Patient has at least 3 of 6 physical examination maneuvers specific for SI joint pain:
C. Patient has improvement in lower back pain NRS of at least 50% of the pre injection NRS score after fluoroscopic controlled injection of local anesthetic into affected SI joint (including previous documented test <6 months ago)
Baseline Oswestry Disability Index (ODI) score of at least 30%
Baseline lower back pain score of at least 5 on 0-10 point NRS
Patient should have tried adequate forms of conservative treatment with little or no response.
Patient has signed study-specific informed consent
Patient has the necessary mental capacity to participate and is physically able to comply with study protocol requirements.
Patients with unilateral or bilateral pain can be included in the study if they clearly can differentiate between the two sides. It is the most painful side that will be included and randomized to SIJ fusion or sham surgery in the study.
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63 participants in 3 patient groups
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Data sourced from clinicaltrials.gov
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