MIS Sacroiliac Joint Fusion: One-Year Outcomes in 18 Patients | SI-BONE

Clinical Data

1-year Follow-up (Cummings - ASIR 2013)

Minimally Invasive Sacroiliac Joint Fusion: One-year Outcomes in 18 Patients

Cummings J Jr, Capobianco RA.
Ann Surg Innov Res. 2013 Sep 16;7(1):12. PMCID: PMC3852345 DOI: 10.1186/1750-1164-7-12


Background: Sacroiliac joint (SI) pain is an often-overlooked cause of low back pain due, in part, to lack of specific findings on radiographs and symptoms mimicking other back-related disorders. We report our experience with minimally invasive (MIS) SI joint arthrodesis using a series of triangular, titanium plasma spray (TPS) coated implants in patients refractory to conservative care.

Methods: We report outcomes from 18 patients with 12 months of postoperative follow-up. Demographics, complications, and clinical outcomes using visual analog scale (VAS) for pain, Oswestry Disability Index (ODI) for back function and SF-12 for quality of life were collected preoperatively and at 3, 6 and 12 months post-operatively.

Results: Mean age was 64 years and 67% of patients were female. There were no intraoperative complications and one explant at three months for malposition. All patient-reported outcomes showed both clinically and statistically significant improvement at 12 months (p < 0.001 for each of the following): VAS improved by 6.6 points, ODI scores improved by −37.5 points. One year SF-12 physical and mental component (PCS, MCS) scores approximated population normal scores for both physical and mental functioning. Patient satisfaction with outcomes was high at 95%; 89% said would have the same surgery again.

Conclusions: MIS SI joint fusion using a series of triangular porous TPS coated titanium implants is a safe and effective procedure for patients with SI joint disorders who have failed conservative care.

KEYWORDS: Minimally invasive surgery, Sacroiliac joint, Arthrodesis, Previous spine surgery

Author Information

Cummings J - Paid consultant and conducts clinical research for SI-BONE Inc.

Capobianco R - Employee of SI-BONE, Inc.

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