Navio® Robotic Total and Partial Knee Replacement
The Navio system is a tool used by your surgeon to perform total and partial
knee replacement on patients suffering from early to mid-stage osteoarthritis.
The system uses advanced planning software and robotic assistance help
your surgeon perform the procedure with great accuracy and precision.
WHAT IS OSTEOARTHRITIS?
Osteoarthritis, also known as OA, occurs when there is a breakdown in the
cushioning cartilage between joints, such as the knee. When this cartilage
wears down, bones begin to rub against each other, causing pain, swelling,
stiffness and damage to other parts of the knee. While the exact cause
of OA is unknown there are several factors that may increase risk of developing OA
WHAT ARE THE TREATMENT OPTIONS?
While there is no cure for osteoarthritis of the knee, there are multiple
treatment options to manage pain and that may delay the progression of
the disease. Talk to your doctor; he or she may prescribe exercises, weight
loss or medication.
If osteoarthritis has progressed to an advanced stage and is causing severe
pain, surgery may be the best option. Instead of masking the pain or accommodating
limited mobility, a partial knee replacement may be able to restore knee
function and allow osteoarthritis sufferers to return to the activities
WHAT IS PARTIAL KNEE REPLACEMENT?
Partial knee replacement is an alternative to total knee replacement for
patients with early to mid-progression osteoarthritis. For these patients,
damage is generally limited to one compartment of the knee. The damaged
portion of the bone is removed while the ligaments vital for knee stability
are spared, leaving healthy cartilage and bone intact. Partial knee replacements
may offer several benefits over total knee replacements, including:
—Lower risk of complications2
—Shorter hospital stay3
Traditional partial knee replacements have been challenging procedures
because orthopedic surgeons had to place implants by relying on mechanical
guides and feel. In this method, cutting blocks guide a surgical saw in
removing the diseased bone and creating room for an implant. In recent
years, advanced surgical approaches involving robotic assistance have
provided a new level of accuracy.4
WHAT IS A NAVIO-ASSISTED PARTIAL KNEE REPLACEMENT?
A partial knee replacement with Navio provides robotic assistance to your
surgeon through an advanced computer system that relays precise information
about your knee. Navio does not perform the procedure; rather it assists
the surgeon to present patient-specific information for a unique surgical
plan, and provides feedback so that the surgeon can precisely place the implant.
HOW DOES THE NAVIO SURGICAL SYSTEM WORK?
Anatomical data collected during the procedure is used to generate a 3-dimensional
model of your knee, which the surgeon uses to precisely plan your partial
knee replacement. With Navio, proper implant placement and knee balance,
crucial to a successful surgery, are achieved virtually before any cut
to the bone is made. When your surgical plan is set, Navio's robotic-assistance
guides the surgeon to accurately resurface the diseased bone for the implant.
MEET OUR JOINT CARE EXPERTS
WANT TO LEARN MORE?
For more information on osteoarthritis visit
The American Academy of Orthopaedic Surgeons
For more information on the Navio system visit
1 Hall et al., "Unicompartmental Knee Arthroplasty (Alias Uni-Knee):
An Overview With Nursing Implications," Orthopaedic Nursing, 2004;
2 Brown, NM, et al., "Total Knee Arthroplasty Has Higher Postoperative
Morbidity Than Unicompartmental Knee Arthroplasty: A Multicenter Analysis,"
The Journal of Arthroplasty, 2012
3 Bolognesi M, et al. Unicompartmental Knee Arthroplasty and Total Knee
Arthroplasty Among Medicare Beneficiaries, 2000 to 2009. J Bone Joint
Surg Am. 2013 Nov;95:e174(1-9).
4 Lonner J., Smith J., et al., High Degree of Accuracy of a Novel Image-free
Handheld Robot for Unicondylar
Knee Arthroplasty in a Cadaveric Study. Clin Orthop Relat Res 2014 Jul
8. Epub 2014 Jul 8