Three-Level Hybrid Cervical Surgery: An Effective Alternative to Total Fusion

In the management of multilevel cervical degenerative disc disease, anterior cervical discectomy and fusion (ACDF) has traditionally been the gold standard. However, clinicians increasingly explore hybrid cervical surgery as a means to preserve spinal mobility while maintaining stability. This approach combines traditional fusion with cervical disc arthroplasty (CDA) to offer a balanced surgical solution. A recent systematic review investigated whether this motion-preserving technique achieves comparable results to three-level ACDF without increasing patient risk.

Clinical Efficacy of Hybrid Cervical Surgery

The meta-analysis, involving 1008 patients, demonstrated that both surgical interventions significantly improve clinical outcomes. Specifically, patients reported substantial reductions in neck and arm pain, as measured by Visual Analogue Scale (VAS) scores. Furthermore, the Japanese Orthopaedic Association (JOA) scores and Neck Disability Index (NDI) showed equivalent improvements across both cohorts. Consequently, surgeons can expect similar neurological recovery and disability reduction regardless of the chosen method. These findings suggest that hybrid cervical surgery provides clinical efficacy on par with multi-level fusion.

Motion Preservation and Radiographic Alignment

One of the primary advantages of the hybrid construct is its ability to maintain cervical range of motion (ROM). While ACDF inherently restricts movement at the fused levels, hybrid surgery demonstrated a clear trend toward greater preservation of global and segmental ROM. Moreover, both techniques successfully restored cervical lordosis and maintained proper spinal alignment. Importantly, the fusion rates at the intended arthrodesis levels remained high in both groups. Therefore, the addition of arthroplasty components does not appear to compromise the success of the fusion segments within the construct.

Safety and Complication Profiles

Safety remains a paramount concern when adopting newer surgical techniques. The study found no significant differences in total, early, or late complication rates between the two groups. Although some heterogeneity existed across several outcomes, the overall safety profile of hybrid surgery was comparable to traditional ACDF. Additionally, there was a trend suggesting that preserving motion might reduce the burden on adjacent segments. Nevertheless, surgeons should carefully select patients based on their specific pathological needs and anatomical considerations to ensure the best surgical success.

Conclusion

Three-level hybrid constructs represent a selective and viable alternative for patients with multilevel cervical disease. By providing comparable pain relief and neurological recovery while preserving essential range of motion, this technique addresses some long-term limitations of multi-level fusion. As the technology matures, it offers a sophisticated tool for modern spine surgeons aiming for optimal biomechanical and clinical results.

Frequently Asked Questions

How does hybrid cervical surgery differ from traditional ACDF?

Hybrid surgery combines fusion (ACDF) at certain levels with artificial disc replacement (CDA) at others. In contrast, traditional ACDF fuses all targeted segments, which results in a complete loss of motion across those specific levels.

Is hybrid surgery safe for three-level cervical disease?

Yes, meta-analysis data shows that hybrid surgery has a safety and complication profile similar to three-level ACDF. It provides equivalent pain relief and neurological improvement while offering significantly better motion preservation.

Does hybrid surgery affect fusion rates?

No, the study indicated that fusion success at the intended levels is high and comparable to traditional ACDF. Integrating a motion-preserving disc does not negatively impact the fusion of the other segments.

Disclaimer: This content is for informational and educational purposes only... Refer to the latest local and national guidelines for clinical practice.

References

1. Viswanathan VK et al. Is Motion Preservation With Three-Level Hybrid Cervical Surgery Achieved Without Compromising Clinical Outcomes? A Systematic Review and Meta-Analysis. Global Spine J. 2026 Apr 26. doi: 10.1177/21925682261447886. PMID: 42035304.


2. Wang T, et al. Anterior cervical hybrid constructs reduce superior adjacent segment burden compared to multilevel anterior cervical discectomy and fusion. J Spine Surg. 2024;10(2):245-256.


3. He S, et al. Hybrid surgery versus multilevel anterior cervical discectomy and fusion for multilevel cervical disc disease: A systematic review and meta-analysis. BMC Musculoskelet Disord. 2023;24(1):154.