The global rise in knee joint disorders is driving a significant shift toward automated surgical solutions. Consequently, the integration of robotic systems is now a primary trend in modern orthopedic care. A new network meta-analysis highlights critical data regarding robot-assisted TKA safety and long-term efficacy. This study provides a comprehensive evaluation of nine robotic systems compared to conventional methods.

Researchers analyzed 36 studies involving 2,841 patients to determine clinical advantages. Findings indicate that conventional total knee arthroplasty (C-TKA) consistently offers shorter operative times. Specifically, systems like MAKO, ROSA, and SkyWalker required more time in the operating room. Nevertheless, the robotic approach often results in superior precision and improved patient-reported outcomes. Therefore, the choice of technique involves balancing surgical speed against alignment accuracy.

Comparing Robot-assisted TKA Safety and Precision

Robotic systems demonstrate a clear advantage in achieving ideal mechanical alignment. For example, systems such as MAKO, HURWA, and SkyWalker significantly reduced hip-knee-ankle (HKA) angle deviations. Additionally, the SkyWalker system achieved the highest probability ranking for Knee Society Scores (KSS) and blood loss reduction. ROSA also presented higher KSS-knee scores than conventional surgery. Furthermore, specific systems like CORI showed distinct benefits in maximizing postoperative range of motion (ROM).

Overall, different robotic platforms exhibit unique strengths across various outcome measures. The YUANHUA system ranked highest for WOMAC scores, while HURWA led in functional performance. These results suggest that no single robot is best for every clinical metric. Surgeons should consider these system-specific advantages when planning procedures. While C-TKA remains efficient for time management, the enhanced safety profile of robotics offers significant long-term value for patients.

In conclusion, robot-assisted TKA provides high safety and effectiveness compared to manual techniques. Robotic systems excel in accuracy and clinical scoring despite longer procedural durations. Consequently, future developments should focus on optimizing robotic workflows to reduce operative time. This evolution will likely solidify robotics as the standard of care in advanced orthopedics.

Frequently Asked Questions

Is robot-assisted TKA safety superior to manual surgery?

Yes, research demonstrates that robot-assisted TKA safety is excellent, particularly regarding mechanical alignment. Robotic systems significantly reduce HKA angle deviations and outliers compared to traditional manual methods.

Which robotic system provides the best functional outcomes?

According to current meta-analysis data, the SkyWalker system ranks highest for KSS-knee scores. However, the HURWA system leads in KSS-function scores, and YUANHUA performs best for WOMAC indices.

Does robotic surgery take longer than conventional TKA?

Data consistently shows that conventional TKA has shorter operative times. While robotic systems like MAKO and ROSA take longer, they provide higher precision and better clinical scores to offset this time difference.

Disclaimer: This content is for informational and educational purposes only. It does not constitute medical advice or a professional recommendation. Refer to the latest local and national guidelines for clinical practice.

References

1. Yong J et al. Safety and efficacy of robot-assisted total knee arthroplasty: a network meta-analysis and systematic review. J Orthop Surg Res. 2026 May 02. doi: 10.1186/s13018-026-06889-y. PMID: 42070047.

2. Chavez AC et al. Effectiveness and safety of robotic-assisted total knee arthroplasty versus conventional manual technique. Int J Res Orthop. 2026 Jan;12(1):188-199.

3. Zaid Khalaf et al. Robot assisted compared to conventional knee arthroplasty: metanalysis and systematic review. J Robot Surg. 2026 Feb 3;20(1):211. doi: 10.1007/s11701-026-03172-4.