Transforming knee joint replacement

Designed and developed by internationally renowned technology experts Smith and Nephew, the CORI™ system is an outstanding leap forward in technology which will revolutionise knee joint replacement. It will allow surgeons to minimise the amount of bone removed from the damaged knee before positioning the implant in exactly the right place to achieve optimum joint stability.

Unlike other robotic-assisted tools, CORI™ takes away the need for a pre-operative CT scan to provide an image of the operation area. Instead a probe feeds a 3D ‘roadmap’ of the knee into a computer, providing the surgeon with all the information needed to create a specific surgical plan for each individual patient. The operation takes around 30 minutes longer than traditional knee replacement surgery, allowing time for mapping.

The computer then feeds back information about the knee allowing the surgeon to accurately remove damaged bone to make way for the implant. If the tool is passed over a part of the knee that doesn’t need removing then the cutters automatically stop, not starting again until it reaches parts mapped out for removal.

Benefits of robot-assisted surgery

• CT-free technology
• Creates a more "normal" feeling knee
• Improvement in recovery times
• Less removal of healthy tissue
• More precise placement of implant

Mr Tim Waters, Consultant Orthopaedic Surgeon:

“This will allow me to plan the surgery and restore natural movement with both total and partial knee replacements more precisely than ever before.”

Mr Simon Jennings, Consultant Orthopaedic Surgeon:

“It allows for minute adjustment and fine tuning during the operation to create a truly astonishing level of accuracy for both precision bone cutting and implant placement.

It is only a matter of time before this advance will become the standard for all joint replacements.”

Mr Ben Spiegelberg, Consultant Orthopaedic Surgeon:

'The CORI™ robotic knee provides precision accuracy which enhances implant positioning and improves patient outcomes in the long-term due to better ligament balancing.  

It represents a huge leap forward in joint replacement surgery.'

Mr Subhajit Ghosh, Orthopaedic Surgeon

‘The CORI system provides greater accuracy and precision in all aspects of knee and hip replacement surgery. 

It allows me to produce a customised knee replacement for each patient during the surgery, resulting in an improvement in outcomes and range of movement and a faster recovery.

With regards to hip replacements, the CORI allows precise implant positioning to maximise the stability and function of the replaced hip joint taking into account leg lengths and spine position of the patient.'