Clinical Data

160 Patients, 1-year Follow-up (Rainov - Eur Spine J 2018)

Triangular Titanium Implants for Sacroiliac Joint Fusion

Rainov NG, Schneiderhan R, Heidecke V.
Eur Spine J. 2018 Dec 18. [Epub].
DOI: 10.1007/s00586-018-5860-1. PMID: 30564865.


Background: Sacroiliac joint (SIJ) dysfunction is an underdiagnosed condition. Several published cohorts have reported favorable midterm outcomes after SIJ fusion using titanium implants placed across the SIJ. Herein, we report 12-month follow-up from SIJ fusion in a standard clinic setting.

Methods: A carefully selected group of 160 consecutive patients with painful SIJ dysfunction were diagnosed at a single center and underwent unilateral or staged bilateral SIJ fusion using triangular titanium implants. Patients were routinely seen in clinic for follow-up every 3 months where they completed visual analog scale (0-10 range) pain ratings and Oswestry Disability Index (ODI). Follow-up CT scan was performed at 1 year.

Results: Mean patient age was 58 years, and 68% were women. 30% underwent staged bilateral SIJ fusion. By month 12, SIJ pain decreased from 8.0 to 2.5 (p < 0.0001) and disability (ODI) decreased from 45.3 to 16.4 (p < 0.0001). The proportion with clinically significant improvements in SIJ pain and ODI was high (> 95%). Perioperative adverse events were mild and decreased with increasing surgical experience with the procedure. Subgroup analysis showed slightly smaller improvements in those undergoing bilateral surgery and those with a spinal cord stimulator in place. CT scan at 1 year showed reabsorption along one or more implants in 16% of cases, but there were no breakages or implant removals.

Conclusions: In standard clinical practice, SIJ fusion with triangular titanium implants produces significant improvement in pain and disability related to SIJ dysfunction. These slides can be retrieved under Electronic Supplementary Material.

KEYWORDS: Degenerative sacroiliitis; Minimally invasive surgery; Sacroiliac joint arthrodesis; Sacroiliac joint disruptions; Sacroiliac joint dysfunction; Spine surgery

Author Information

Rainov NG, Schneiderhan R - MVZ Wirbelsäulenzentrum Taufkirchen b. München, Eschenstr. 2, 82024, Taufkirchen, Munich, Germany.

Heidecke V - Klinik für Neurochirurgie, Klinikum Augsburg, 86156, Augsburg, Germany.

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