Smith+Nephew introduces first of its kind handheld digital tensioning device for robotically-enabled total knee arthroplasty
On April 24, 2023, Smith+Nephew (LSE:SN, NYSE:SNN) unveiled the CORI™ Digital Tensioner, a groundbreaking device designed for robotic-assisted knee surgeries. This innovative technology allows surgeons to measure ligament tension before bone cutting, enhancing surgical precision and reducing variability by 64% compared to manual methods. The tensioner provides quantifiable joint laxity data, facilitating better surgical planning. Dr. Steven Haas praised the device for its capability to deliver objective gap data, marking a significant advancement in knee replacement procedures. The first commercial use occurred in Arizona, highlighting its practical application in a clinical setting. This launch underscores Smith+Nephew's commitment to improving patient outcomes through innovative technologies.
- Launch of the CORI Digital Tensioner, enhancing surgical precision in knee surgeries.
- Reported 64% reduction in variability of ligament tensioning compared to manual techniques.
- Enables surgeons to gather quantifiable joint laxity data for improved surgical planning.
- None.
LONDON, April 24, 2023 /PRNewswire/ -- Smith+Nephew (LSE:SN, NYSE:SNN), the global medical technology company, today introduced its new CORI™ Digital Tensioner - a purpose built device that lets surgeons measure the ligament tension in a knee prior to cutting bone.1 By enabling a surgeon to quantify joint laxity in the native knee and achieve an optimal ligament tensioning force, the CORI Digital Tensioner helps to reduce variability when balancing the knee in surgery.1-4 This helps make surgical planning more objective versus other commercially available alternatives.1,3
Personalizing Surgery and Helping Reduce Variability in Robotics-assisted TKA
The CORI Digital Tensioner produces a surgeon-defined, quantifiable force to distract the knee joint, apply consistent tension to the ligaments, and provide objective gap data for procedure planning and execution.1,3 A small clinical case series showed the CORI Digital Tensioner reduced variability of tensioning by
"I've never seen anything like the digital tensioner before," stated Dr. Steven Haas at Hospital for Special Surgery in New York. "You try to teach how much force to apply, but it varies by surgeon and from one case to another. The CORI Digital Tensioner goes into the knee, you see a force or load being applied, and the gap it created. This technology is something I've wanted for the last twenty years."
Advancing procedural innovation in robotic-assisted surgery, the CORI Digital Tensioner is a differentiated technology that helps solve challenges for surgeons, including:
- The first and only ligament tensioning device in robotic-assisted surgery to assess joint laxity in the native knee before performing bony resection.
- Automatic collection of gap data at a specified force through the full range of movement.
- A true tensioning device using a software interface that allows surgeons to choose their preferred target force value (50±10N, 100±10N, or 150±10N).
The first commercial surgical procedure using the CORI Digital Tensioner was recently performed by Dr. Bertrand Kaper of Orthopedic Specialists of Scottsdale and HONORHEALTH Medical Group in Arizona.
"The integration of this dedicated soft tissue tensioning device brings a new realm of objective data to the technique of knee replacement," commented Dr. Kaper. "The surgeon is now able to collect joint laxity data, in a proactive manner, to assist with the visualization, planning and execution of the patient's surgery in real time. It's unlike any other tool we've historically had available and will be a powerful addition to the robotic-assisted knee replacement technology that the CORI™ platform currently offers."
To learn more about the latest advancements in orthopaedic reconstruction and discover more about robotics and computer-guided solutions, please go to https://www.smith-nephew.com/en-us/health-care-professionals/products/orthopaedics/cori
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References
- Smith+Nephew 2022. Optimus TKA Tensioner Gap Assessment Verification Report. Internal Report. 10059269.
- Smith+Nephew 2021. Tensioner Design Verification Test Report. Internal Report. TR100123
- Smith+Nephew 2022. Tensioner KPC: Tensioner Calibration Check. Internal Report. TR100116, Rev.B
- Haas SB, Chow J, Nathwani D, Belooshi A, et al. Smith+Nephew CORI™ Digital Tensioner for total knee arthroplasty (TKA): ligament tensioning and assessment prior to bone resections. S+N Evidence in Focus Whitepaper. 2022 Dec.
- Smith+Nephew 2022. Tensioner Whitepaper Supporting Evidence. Internal Report. 10073166 REV A.
About Smith+Nephew
Smith+Nephew is a portfolio medical technology company focused on the repair, regeneration and replacement of soft and hard tissue. We exist to restore people's bodies and their self-belief by using technology to take the limits off living. We call this purpose 'Life Unlimited'. Our 19,000 employees deliver this mission every day, making a difference to patients' lives through the excellence of our product portfolio, and the invention and application of new technologies across our three global franchises of Orthopaedics, Sports Medicine & ENT and Advanced Wound Management.
Founded in Hull, UK, in 1856, we now operate in more than 100 countries, and generated annual sales of
For more information about Smith+Nephew, please visit www.smith-nephew.com and follow us on Twitter, LinkedIn, Instagram or Facebook.
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