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Purpose: The aim of the present study is to understand the clinical outcomes of a novel hydroxyapatite-coated (HA-coated) titanium screw for surgical treatment of SI joint dysfunction. Background: The mainstay of therapy for disorders of the sacroiliac (SI) joint has been non-operative treatment including activity modification, non-steroidal anti-inflammatory drugs, and physical therapy. SI joint injections provide diagnostic information and occasional durable therapeutic benefit. When these modalities fail, sacroiliac joint fusion may be recommended. Objective: The objective of this study is to describe the clinical outcomes of a novel HA-coated titanium screw for surgical treatment of SI joint dysfunction. Methods: This study is a retrospective Institutional Review Board-exempt chart review of 45 consecutive patients who underwent minimally invasive SI joint fusion with a novel HA-coated screw system. Patients were diagnosed based on North American Spine Society guidelines and evidence-based criteria. Clinical assessments were collected, evaluated, and compared preoperatively and at 3, 6, 12, and 24 months postoperatively. Results: Mean patient age was 68.8 ± 9.4 years, and 61.7% of patients were female. Of the 44 patients, nine underwent bilateral SI joint fusion, while the remaining were unilateral. Screw size ranged from 10 × 35 mm to 10 × 50 mm. Mean preoperative visual analog scale (VAS) SI pain scores decreased significantly by a mean of 6.1 points at 12 months postoperatively (P |
