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Published on: January 6, 2023
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Patient-Specific TKA with the VELYS™ Robotic-Assisted Solution.
1Auckland Bone and Joint Surgery, Auckland, New Zealand.
Surgical Technology International
|March 24, 2022
Summary
The VELYS™ Robotic-Assisted Solution (VRAS) enables precise total knee arthroplasty (TKA) planning and implantation. Early results show improved knee function and patient satisfaction with comparable surgical times.
Area of Science:
- Orthopedic Surgery
- Robotics in Medicine
- Biomechanical Engineering
Background:
- Total knee arthroplasty (TKA) aims to restore knee function and alleviate pain.
- Accurate pre-operative planning and precise surgical execution are critical for successful TKA outcomes.
- Existing TKA techniques may have limitations in soft tissue preservation and anatomical restoration.
Purpose of the Study:
- To describe a patient-specific TKA technique utilizing the VELYS™ Robotic-Assisted Solution (VRAS).
- To evaluate the early outcomes of TKA performed with VRAS, focusing on functional recovery and patient satisfaction.
- To assess the efficiency and accuracy of the robotic-assisted surgical system in TKA procedures.
Main Methods:
- Utilizing VRAS to collect detailed bony anatomy and soft tissue envelope data.
- Intraoperative planning of anatomical TKA placement with soft tissue preservation.
- Employing a robotic-assisted saw for precise execution of the surgical plan.
- Conducting an early outcome study assessing knee function, pain, and surgical time.
Main Results:
- Early outcome data indicates improvements in knee function and pain reduction at discharge and six weeks post-surgery.
- Surgical times were comparable to traditional patient-specific TKA with navigation.
- Limited one-year follow-up data from a small cohort shows favorable outcome scores and high patient satisfaction.
Conclusions:
- VRAS facilitates precise, patient-specific TKA with potential for enhanced functional restoration.
- The system demonstrates efficiency and accuracy, supporting its integration into TKA procedures.
- Early outcomes suggest VRAS is a promising technology for improving TKA results and patient experience.

