GREELEY, Colo. (Sept. 10, 2026) – Patients in Greeley now have access to robotic-assisted knee replacement surgery, with the first procedure recently completed in August 2026 at Banner North Colorado Medical Center by Hunter Aronson, DO, using the VELYS™ Robotic-Assisted Solution. The addition of the VELYS Robotic-Assisted Solution in Greeley gives patients access to technology that was previously available through Banner Health at North Colorado Medical Center – Loveland Campus.
“This gives us an option to keep Greeley patients closer to home, which is great,” Dr. Aronson said. “Some patients have already done their own research and come in asking about robotic-assisted knee replacement. Now, we are able to offer that technology here at North Colorado Medical Center in Greeley.”
VELYS is designed to assist surgeons during total knee replacement by helping them plan and perform precise, patient-specific bone cuts based on the patient’s unique anatomy. The technology uses a robotic-assisted device, a high-speed camera, optical trackers and data screens to support accuracy and real-time decision-making during surgery. While the technology is advanced, Dr. Aronson emphasized that the robot does not perform the surgery on its own.
“The robot is a tool, and it’s a good tool, but ultimately the surgeon is the one making the decisions,” Dr. Aronson said. “It helps us be more precise and consistent, but it does not replace the surgeon’s training, experience or judgment.”
Robotic-assisted knee replacement may be an option for many patients who need a primary total knee replacement. Dr. Aronson said some complex revision cases or patients with severe deformities may not be candidates at this point, though the technology continues to evolve.
The first VELYS case in Greeley also reflects Banner’s broader investment in joint replacement care across Northern Colorado through The Joint Replacement Center of Northern Colorado, led by Kirk Kindsfater, MD and supported by Dr. Aronson, Travis Wilson, MD and Daniel Heaston, MD.The center brings together fellowship-trained orthopedic surgeons focused on hip and knee replacement, total shoulder and ankle replacements, advanced surgical techniques with emerging technology and coordinated care before, during and after surgery.
“Access to robotic-assisted technology is an important part of building a comprehensive joint replacement program,” Dr. Kindsfater said. “Patients are looking for specialized care, experienced surgeons and the latest tools available. This helps us continue building that level of care for patients across Northern Colorado.”
In addition to robotic-assisted knee replacement, The Joint Replacement Center of Northern Colorado offers a range of orthopedic services and surgical options, including same-day hip and knee replacement and quadriceps-sparing knee replacement options for appropriate patients.
Those interested in learning more or scheduling a consultation can call (970) 810-0020.
About Banner Health
Banner Health's mission is to make health care easier, so life can be better. As one of he nation's largest fully integrated nonprofit health systems, we are pioneering a sustainable care model that prioritizes prevention, manages chronic disease, and reduces health spending – succeeding when patients stay healthy, not when they get sick. We operate 33 hospitals and more than 400 sites across six states, delivering seamless care from primary to quaternary medicine, including health insurance, physician networks, world-renowned specialty services, and behavioral health. Accountable to the communities we serve, we reinvest every dollar into advancing care, research, and facilities, providing more than $1 billion each year in community benefit. Through our partnership with the University of Arizona, we drive clinical discoveries across more than 800 trials and train more than 1,300 residents and fellows annually. Headquartered in Arizona, we serve Arizona, California, Colorado, Nebraska, Nevada, and Wyoming. Our hospitals are consistently ranked among Arizona's top-performing by U.S. News & World Report. For more information, visit bannerhealth.com/about.
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