The PainTEQ study is a prospective, multi-site, prospective, single arm study intended to collect clinical data outcomes data associated with the treatment of sacroiliac disease with the LinQ fusion procedure. Data will be collected using self-report measures including the visual analog scale (VAS) for pain assessment where the participant is asked to place a line perpendicular to the VAS line at the point that represents their pain intensity. Using a ruler, the score is determined by measuring the distance (mm) on the 10-cm line between the "no pain" anchor and the patient's mark, providing a range of scores from 0-100. Other self-report questionnaires will be administered including the Oswestry Disablity Index (ODI) to measure low-back pain and disability, and the Patient-Reported Outcomes Measurement Information System 29 (PROMIS 29) to measure physical, mental, and social health and well-being.
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Change from baseline VAS Sacroiliac Joint (SIJ) pain by at least 20 millimeters
Timeframe: Comparisons will be done prior to baseline visit and 7-14 days post surgery, 1 month, 3 month, 6 month, and 12 month visits.
Absence of device related serious adverse events
Timeframe: Comparisons will be done prior to baseline visit and 7-14 days post surgery, 1 month, 3 month, 6 month, and 12 month visits.
Absence of neurological worsening related to the lumbosacral nerve roots
Timeframe: Comparisons will be done prior to baseline visit and 7-14 days post surgery, 1 month, 3 month, 6 month, and 12 month visits.
Absence of surgical reintervention (removal, revision reoperation or supplemental fixation) for SIJ pain
Timeframe: Comparisons will be done prior to baseline visit and 7-14 days post surgery, 1 month, 3 month, 6 month, and 12 month visits.