{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,5]],"date-time":"2026-03-05T12:57:07Z","timestamp":1772715427564,"version":"3.50.1"},"reference-count":36,"publisher":"Journal of Neurosurgery Publishing Group (JNSPG)","issue":"1","license":[{"start":{"date-parts":[[2021,7,5]],"date-time":"2021-07-05T00:00:00Z","timestamp":1625443200000},"content-version":"unspecified","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2021,7,5]]},"abstract":"<jats:sec>\n                    <jats:title>BACKGROUND<\/jats:title>\n                    <jats:p>Sacroiliac joint (SIJ) dysfunction can lead to significant pain and disability, greatly impairing quality of life. Arthrodesis may take up to 1 year to occur, after which revision can be considered. There is a need for highly accurate and reproducible techniques for revision that allow for purchase through undisturbed bone to prevent prolonged pain and disability. Moreover, a minimally invasive technique for revision would be favorable for recovery, particularly in elderly patients.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>OBSERVATIONS<\/jats:title>\n                    <jats:p>An 84-year-old man with a prior history of lumbar fusion presented with severe buttock pain limiting ambulation and sitting because of the failure of arthrodesis after SIJ fusion 1 year earlier. He underwent revision using a triangular titanium implant (TTI) in an S2-alar-iliac (S2-AI) trajectory under robotic guidance, which is a novel technique not yet described in the literature. The patient\u2019s pain largely resolved, he was able to ambulate independently, and his quality of life improved tremendously. There were no complications of surgery.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>LESSONS<\/jats:title>\n                    <jats:p>Placement of a TTI using an S2-AI trajectory is a safe and effective method for revision that can be considered for elderly patients. Robot-assisted navigation can be used to facilitate an accurate and reproducible approach using a minimally invasive approach.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.3171\/case2169","type":"journal-article","created":{"date-parts":[[2021,7,5]],"date-time":"2021-07-05T03:03:03Z","timestamp":1625454183000},"source":"Crossref","is-referenced-by-count":2,"title":["Robot-assisted revision of sacroiliac joint fusion using a triangular titanium implant in an S2-alar-iliac trajectory: illustrative case"],"prefix":"10.3171","volume":"2","author":[{"given":"Matthew","family":"Triano","sequence":"first","affiliation":[{"name":"Georgetown University School of Medicine, Washington, DC; and"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Islam","family":"Fayed","sequence":"additional","affiliation":[{"name":"Department of Neurosurgery, MedStar Georgetown University Hospital, Washington, DC"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Faheem A.","family":"Sandhu","sequence":"additional","affiliation":[{"name":"Department of Neurosurgery, MedStar Georgetown University Hospital, Washington, DC"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1754","reference":[{"issue":"1","key":"b1","series-title":"J Spine Surg","doi-asserted-by":"publisher","first-page":"31","DOI":"10.21037\/jss.2019.01.04","article-title":"Mini-open sacroiliac joint fusion with direct bone grafting and minimally invasive fixation using intraoperative navigation","volume":"5","author":"Cleveland AW III","year":"2019","unstructured":"Cleveland AW III, Nhan DT, Akiyama M,  Mini-open sacroiliac joint fusion with direct bone grafting and minimally invasive fixation using intraoperative navigation. 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