Oral Presentations

Early human evidence such as case series or small samples is exploring possible benefits.

• Level A · Stronger Clinical Evidence
• Level B · Emerging clinical evidence with positive signals
• Level C · Early human research exploring benefits
• Level D · Scientific groundwork from lab and animal studies
• Emerging · Emerging topic under active research

Abstract (original English)

Introduction: As robotic-guidance and minimally invasive approaches become more prevalent in spine surgery, there is a growing interest in high-level scientific evidence of their clinical value. MIS ReFRESH is the first prospective, comparative, multi-center study designed to assess differences in surgical complication and revision rates, and exposure to intra-operative radiation, in adult degenerative conditions, operated in a minimally invasive (MIS) approach in 1-to-3 level fusions. Materials and Methods: Multicenter data (9 sites) were prospectively collected from 379 adult patients indicated for fusion surgery, including demographics, complications, need for revision surgery and use of intra-operative fluoroscopy (in seconds). A single site randomized patients between arms, while other sites enrolled exclusively to one arm. We compared of incidence of revision surgeries and clinical complications (surgical and medical) through a logistic regression model (Cox) as well as intra-operative fluoroscopy use. Results: Altogether, 9 sites enrolled 379 cases: 287 in the robot-guided arm (RG), and 92 in the fluoro-guided arm (FG). One site randomized patients, 15 to RG and 11 to FG. Mean age of RG patients was 59.1 years vs. 62.4 for FG (p = 0.032) and BMI was 31.4 vs. 28.0, respectively (p Conclusion: We report our findings from a prospective, multi-center, comparative study of MI

Evidence level

Early human evidence such as case series or small samples is exploring possible benefits.

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