Robotics-Assisted Total Knee Replacement with the NAVIO Surgical System
Millions of Americans suffer from the debilitating pain of osteoarthritis. As one of the leading causes of disability, osteoarthritis is a degenerative joint disease that results in wearing and eventual loss of cartilage. Those suffering from osteoarthritis often experience quality of life issues, loss of mobility, stiffness and swelling, and joint pain through activity.
More than 600,000 total knee replacement procedures are performed each year in the U.S. and more than 90 percent of these patients experience a dramatic relief in knee pain and are better able to perform common activities.1
The Knoxville Hospital & Clinics offers robotic-assisted surgery using the NAVIO Surgical System for both partial and total knee replacements for patients living with knee pain caused by osteoarthritis. Partial knee replacement is to treat patients suffering from early to mid-stage osteoarthritis of the knee. Total knee arthroplasty (total knee replacement) is for persons with late-stage osteoarthritis.
Introducing the NAVIO surgical system
The NAVIO Surgical System delivers robotics-assisted tools designed to help tailor your knee replacement surgery to the unique shape and motion of YOUR knee.
- The use of robotics provides unmatched accuracy in bone preparation and implant positioning
- Can help improve function, feel and potential longevity
- Works in conjunction with a surgeon’s skilled hands
- Helps achieve precise positioning of the knee implant
- Requires no pre-operative CT scan (the surgeon maps the patient’s anatomy and creates a custom plan for their knee)
What can NAVIO mean for you?
- More accurately placed implants
- No CT radiation exposure
- No preoperative imaging saves you time and money
- Customized surgical plan unique to your anatomy
How does a NAVIO total knee arthroplasty surgery work?
The total knee replacement procedure starts with your unique anatomy in mind. By the time your procedure is complete, the damaged bones and cartilage within your knee joint will be removed and replaced with new implant components. Each of these implant components must fit precisely and be aligned to your natural anatomy if they are to provide you with the best outcome possible.
The challenge of aligning your implant and preparing your bones to accept it can be complex, invasive and time consuming because no two knee joints are exactly the same. The NAVIO Surgical System is designed to help your surgeon not only plan your surgery based on your unique anatomy, but also position your total knee implant using a combination of computer and robotic assistance.
The NAVIO procedure starts with an advanced computer system that gathers precise anatomic and alignment information about your joint that your surgeon will use to create your specific surgical plan. This extra layer of data collection and planning is designed to help ensure your knee procedure is performed exactly as your surgeon intends and that your implant is positioned as accurately as possible for the best long-term outcome.
Rather than a radiation-intensive CT-scan, the NAVIO system uses a bone surface mapping technique to collect information about your knee. The information collected by the surgeon during the bone surface mapping phase is used to generate a 3D model of your knee. The surgeon then uses computer assistance to virtually position the metal and plastic implant components that will replace your damaged knee. This is done prior to bone resurfacing so the surgeon can be sure the plan is right for you.
Once your surgery plan is finalized, the surgeon will use a robotics-assisted surgical tool (the NAVIO handpiece) to accurately remove the damaged surface of your knee.
To complete the procedure, the implant components are positioned and the surgeon receives computer confirmation that your surgery was performed according to the plan. Then, your knee is checked to make sure it moves and is balanced correctly.
It’s important to understand that the NAVIO system doesn’t replace your surgeon. The procedure remains in the skilled hands of your surgeon, with the NAVIO system providing extra layers of planning, accuracy, and precision.
Individual results may vary. There are risks associated with any surgical procedure including NAVIO-enabled knee replacement. NAVIO is not for everyone. Children, pregnant women, patients who have mental or neuromuscular disorders that do not allow control of the knee joint, and morbidly obese patients should not undergo a NAVIO procedure. Consult your physician for details to determine if NAVIO is right for you.
Important safety notes
Individual results of joint replacement may vary. Implants are intended to relieve knee pain and improve function, but may not produce the same feel or function of your original knee. There are potential risks with knee replacement surgery, such as loosening, wear and infection that may result in the need for additional surgery. Patients should not perform high impact activities such as running and jumping unless their surgeon tells them that the bone has healed and these activities are acceptable. Early device failure, breakage or loosening may occur if a surgeon’s limitations on activity level are not followed.
The information listed on this site is for informational and educational purposes and is not meant as medical advice. Every patient’s case is unique and each patient should follow his or her doctor’s specific instructions. Please discuss nutrition, medication and treatment options with your doctor to make sure you are getting the proper care for your particular situation.
1. American Academy of Orthopaedic Surgeon website, accessed March 7, 2017 http://orthoinfo.aaos.org/topic.cfm?topic=A00389