A knee replacement is a procedure whereby your surgeon removes areas of bone that have been damaged by osteoarthritis and replaces these parts with different types of implants.

Robotic-assisted knee replacement surgery is similar to traditional knee replacement surgery but uses technology such as a robotic-assisted device. Robot-assisted surgery utilises technology to aid the surgeon as they plan for and execute a precise knee replacement personalised for your specific anatomy2 This robotic-assisted device does not move or operate on its own.


Bidwill Knee RobotAssited Photo



How does the VELYS Robotic-Assisted Solution work?

The VELYS Robotic-Assisted Solution uses a variety of advanced technologies to ensure the surgeon has the information and tools they need to perform a highly accurate and precise knee replacement.2

Aids the surgeon by accessing state-of-the-art technology to provide insights for real-time decision making

  • Helps your surgeon remove the damaged bone with accuracy.
  • Uses an infrared camera and optical trackers to help your surgeon achieve the highest possible precision level.
  • Works exclusively with the ATTUNE® Knee System, an innovative implant system.



How is robotic-assisted technology different? 

Robotic-assisted knee replacement:

  • Technology controlled by the surgeon2
  • May experience less pain and a faster recovery3,5
  • More consistent outcomes2 (inconsistencies can affect recovery)

Traditional knee replacement:

  • Hand-held tools
  • May experience a longer recovery time3-5
  • There may be more variability in the surgical processes and outcomes3



What are the benefits of using robotic-assisted technology?

There are a number of potential benefits to using this technology for your knee replacement.* During your procedure, the technology will gather details and data related to your knee to assist the surgeon in determining an optimal implant fit. Robotic-assisted technology may deliver*:

  • A greater range of motion (how well you can bend and flex your knee after surgery)3
  • Less pain compared to traditional methods3
  • Faster recovery times (reduced length of hospital stay, hospital readmissions, and health visits)3-5


* Findings based on studies conducted across multiple robotic-assisted total knee replacement systems.



What is the VELYS Robotic-Assisted Solution?

Every knee is different, as is every patient requiring a knee replacement procedure. The VELYS RoboticAssisted Solution helps surgeons perform knee replacement surgery that is tailored to each patient, and is designed to provide digital precision and accuracy to get you back to the things you love.

The VELYS Robotic-Assisted Solution is a first-of-its-kind operating table mounted solution that adapts to the surgeon’s workflow. It is designed to help surgeons accurately resect bones that align and position the implant relative to the soft-tissue during total knee replacement.

Some robotic-assisted technologies may require you to go for a series of X-rays or a Computerised Tomography (CT) scan so that the technology can create a three-dimensional (3D) model of your knee anatomy. For surgeries using the VELYS Robotic-Assisted Solution, pre-operative imaging is not required as the technology enables surgeons to register your knee in real-time.



How does the VELYS Robotic-Assisted Solution work?

The VELYS Robotic-Assisted Solution uses a variety of technologies designed to ensure the surgeon has the information and tools they need to perform a highly accurate and precise knee replacement2 . This solution is designed to:

  • Provide your surgeon with real-time information about your knee during operation.
  • Help your surgeon remove the damaged bone (your surgeon remains in control and the device does not move or operate on its own).
  • Use an infrared camera and optical trackers to help your surgeon gather the necessary data about your anatomy to position the implant.



Who is suitable for knee replacement surgery with the VELYS Robotic-Assisted Solution?

Knee replacement surgery is used to treat knee osteoarthritis when other non-operative treatment options have been attempted and are no longer effective. If your GP has identified that you have severe osteoarthritis for which non-operative treatments are ineffective, they will make the decision to refer you to an orthopaedic surgeon to explore whether surgery could be an appropriate treatment option. Your orthopaedic surgeon will then determine the best surgical approach for you based on your individual circumstance, including if you are a suitable candidate for knee replacement surgery using the VELYS Robotic-Assisted Solution.



How to find out more about the VELYS Robotic-Assisted Solution?

Speak to your Orthopaedic Surgeon to find out if surgery with the VELYS Robotic-Assisted Solution is suitable for you.



Bidwill Trust Hospital digital precision in knee replacement in Timaru






1. Johns Hopkins Medicine. Knee replacement surgery procedure. Accessed December 7, 2021. https://www.hopkinsmedicine.org/health/treatment-tests-and-therapies/knee-replacement-surgery-procedure

2. Doan et al. Resection Accuracy Improved Using A Novel Concept For Robotic-assisted Total Knee Arthroplasty; ORS 2021 Annual Meeting Paper No. 0333.

3. Agarwal N, To K, McDonnell S, Khan W. Clinical and radiological outcomes in robotic-assisted total knee arthroplasty: a systematic review and meta-analysis. J Arthroplasty. 2020;35(11):3393-3409.

4. Cool CL, Jacofsky DJ, Seeger KA, Sodhi N, Mont MA. A 90-day episode-of-care cost analysis of robotic-arm assisted total knee arthroplasty. J Comp Eff Res. 2019;8(5):327-336. 5. Mitchell J, Wang J, Bukowski B, Greiner J, Wolford B, Oyer M, Illgen R. Relative Clinical Outcomes Comparing Manual and Robotic-Assisted Total Knee Arthroplasty at Minimum 1-Year Follow-up. HSS Journal, The Musculoskeletal Journal of Hospital for Special Surgery. 2021; Vol. 17(3) 267- 273. © DePuy Synthes 2021.

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