Ferioperative Outcomes of Minimally Invasive Sacroilliac Joint Fusion Using Hollow Screws Through a Lateral Approach: A Single Surgeon Retrospective Cohort Study

Sacroiliac joint (SII) pain is a common cause of lower back pain and a significant source of disability in the United States. There is no consensus on the best surgical treatment for SII pain that is not responsive to conservative therapy. Minimally invasive fusion of the STI using hollow fenestrated screws from a lateral trajectory is a newer technique for SII fusion. This study presents perioperative and patient-reported outcomes amongst 62 patients who underwent SII fixation with hollow fenestrated screws. We find that mean disability on the Oswestry disability index improved from 52.2% to 34.9% at one-year post-op. Mean operative time was 34 +/- 9 minutes and blood loss was 22 +/- 35ml. Only six patients required overnight hospitalization. There were two cases of complications requiring operative intervention. We conclude that SII fixation using hollow fenestrated screws is a safe and effective procedure for the fixation of the SII. Further investigation is warranted to determine the best surgical treatment for SII pain.