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Two New Studies Show High Precision of PolarisAR STELLAR Knee in Total Knee Arthroplasty

By: via Business Wire
  • Data show STELLAR Knee achieves sub-millimeter, sub-degree average errors in bone resections, indicating high precision compared to modern robotic-assisted TKA systems
  • STELLAR Knee localizes points and planes with high precision, providing sub-millimeter and sub-degree accuracy comparable to modern robotic-assisted orthopedic surgery systems

PolarisAR, a developer of advanced mixed-reality surgical guidance technology, today announces favorable data from two clinical abstracts evaluating its STELLAR Knee mixed-reality surgical guidance system for accuracy for total knee arthroplasty (TKA) and accuracy in a cadaveric simulated use study with four specimens, where left and right knees were used for surgery.

This press release features multimedia. View the full release here: https://www.businesswire.com/news/home/20240829259226/en/

PolarisAR announces favorable data from two new studies demonstrating high precision of the STELLAR Knee mixed-reality surgical guidance system for total knee arthroplasty (TKA). (Graphic: Business Wire)

PolarisAR announces favorable data from two new studies demonstrating high precision of the STELLAR Knee mixed-reality surgical guidance system for total knee arthroplasty (TKA). (Graphic: Business Wire)

The two studies will be podium presentations during the International Society for Technology in Arthroplasty’s (ISTA) 35th Annual Congress on Aug. 31, 2024.

“These findings demonstrate that the STELLAR mixed reality surgical platform achieves sub-millimeter and sub-degree tracking errors, providing balancing and resection accuracy comparable to modern robotic-assisted systems,” said John Cooper, M.D., Associate Professor of Orthopedic Surgery, Columbia University Irving Medical Center. “The system does not need preoperative imaging and requires just 14 intraoperative landmarks, is open-platform and agnostic to knee implant system, overlays meaningful clinical data holographically onto the surgical field, and requires minimal instrumentation, allowing it to maintain a reduced footprint while delivering a comprehensive set of metrics.”

The STELLAR Knee system guides TKA procedures by displaying measured and computed data overlaid directly in a 3D environment. The mixed-reality system acts as a spatial computer, creating continuous data exchange between the surgeon and the software to help enhance surgical decision-making while simplifying operating room workflow.

Following is a summary of the two studies being presented at ISTA 2024:

  • Saturday, August 31, 9:33 am, Podium AE/3

    Mixed Reality Navigation Accuracy for Orthopedic Surgery, by John Cooper, Winona Nice. The study evaluates the tracking accuracy of the STELLAR Knee system using the latest ASTM standards for surgical navigation systems. The platform’s ability to accurately locate points and planes was tested, revealing sub-millimeter and sub-degree accuracy in both positional and angular measurements. The study shows that the STELLAR Knee localizes over points and planes with high precision, providing accuracy comparable to modern robotic-assisted orthopedic surgery systems.
  • Saturday, August 31, 10:24 am, Podium D/9

    Accuracy of a Mixed Reality Surgical Platform for Total Knee Arthroplasty, by John Cooper, Aaron Young, Jacob Brenza, Mike King, Winona Nice. The study focuses on the accuracy of the STELLAR Knee mixed reality system in performing TKA. The system was tested using cadaveric specimens, with the accuracy of bone resection being compared to ground truth measurements from calipers and post-operative CT scans. The results demonstrate that the system achieved sub-millimeter and sub-degree average errors in bone resections, indicating high precision comparable to modern robotic-assisted TKA systems.

“The new data presented by our research partners is a testament to the precision and reliability of our technology,” said Paul Mikus, CEO of PolarisAR. “Achieving sub-millimeter and sub-degree accuracy in both cadaveric simulations and ASTM-standard testing demonstrates our platform can match the precision of robotic systems while offering significant advantages in simplicity and usability for TKA procedures. We believe our technology represents a significant advancement in surgical guidance, providing surgeons with the tools to enhance surgical precision, patient recovery, and reduce the complexity of TKA procedures.”

About PolarisAR

PolarisAR is a privately held startup based in Miami, founded in 2020. The company is developing a new class of mixed-reality surgical technology designed to optimize intraoperative workflows and improve patient outcomes using advanced, three-dimensional spatial computing algorithms. Its first product is the STELLAR Knee mixed-reality surgical guidance system, cleared by the FDA in 2023 for total knee arthroplasty (TKA) procedures. By combining the benefits of robot-like precision with the simplicity of a mixed-reality headset, Polaris aims to transform the landscape of orthopedic surgery. More information may be found at https://www.thinkpolaris.com.

Note to Editors: The two podium presentations will occur at the Gaylord Opryland Hotel and Conference Venue in Nashville.

“The new data presented by our research partners is a testament to the precision and reliability of our technology.” Paul Mikus, CEO of PolarisAR

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