Robotic Surgery

Meet the NAVIO* Surgical System, a robotics-assisted knee surgery platform that adds an extra layer of pre-surgical planning and improved precision for partial knee replacement or total knee replacement procedures.

NAVIO Robotic-assisted Surgical System

NAVIO Robotics-assisted knee replacement surgery

Your knee replacement surgery is unique, based on your knee anatomy and the implant used. Designed to help ensure your knee replacement is positioned and aligned correctly, surgeons can now use the NAVIO Surgical System. Proper positioning of the implant is important because implant alignment is a crucial factor in determining how long your implant may last.1, 2

Decades of innovation in knee replacement surgery

Surgical techniques have evolved considerably since the earliest knee implant procedures were performed in 1968. These procedures relied on manual guides, external pins and cutting jigs to remove damaged bone and place the prosthetic implant. Eventually more advanced implant positioning techniques were introduced that used long rods drilled into the central canal of the femur (thigh bone). These rods provide an attachment point for surgical cutting guides. More recent improvements introduced CT (computerised tomography) scan/MRI image guidance to create an individualised computer-generated surgical plan for each patient. 

A recent innovation is the NAVIO Surgical System, a robotics-assisted platform that uses CT-free technology for precise implant sizing and positioning without the need for rods. 

The NAVIO Surgical System can be used for either a partial or total knee replacement procedure.

NAVIO system benefits: accuracy, less exposure to CT radiation

The NAVIO system offers two important benefits for people undergoing a knee replacement procedure. First, it helps your surgeon create an individualised plan that is specific to the unique shape and motion of your knee. Other robotic-assisted knee replacement systems use CT scans to help a surgeon visualise a patient's knee anatomy. While CT scans are effective at showing the layers of knee anatomy, they can expose the patient to potentially harmful radiation. In fact, a single CT scan is equivalent to the radiation exposure received in 48 chest X-rays. 3 

The NAVIO system eliminates the need for CT scans by using an advanced computer program to collect anatomic and alignment information about your knee. Once captured, this information is used to build a precise, computer-rendered 3D model of your knee that your surgeon will use to plan your surgery. 

The second benefit is robotic assistance. This combination of advanced technology is designed to help your surgeon prepare your knee surgical site, and position and balance your implant – key factors that can drive implant longevity.

Download the NAVIO Robotic-assisted total knee replacement brochure.

Watch a video on NAVIO Robotic-assisted knee surgery.


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 (e.g. multiple sclerosis) that do not allow control of the knee joint, and morbidly obese (overweight) patients and patients contraindicated (not advised) for UKR (unicondylar knee replacement), PFA (patellofemoral arthroplasty) and TKA (total knee replacement) should not undergo a NAVIO procedure. Consult your surgeon for details to determine if NAVIO is right for you.

1. Collier, Matthew, et al., "Patient, Implant, and Alignment Factors Associated With Revision of Medial Compartment Unicondylar Arthroplasty.", Jour of Arthro, Vol 21 No 6, Suppl. 2, 2006.

2. Hernigou, Ph, Deschamps, G., "Alignment Influences Wear in the Knee after Medial Unicompartmental Arthroplasty.", Clin Orthop Relat Res., Volume 423, June 2004, pp 161-165

3. Ponzio DY, Lonner JH, Preoperative Mapping in Unicompartmental Knee Arthroplasty Using Computed Tomography Scans Is Associated with Radiation Exposure a..., J Arthroplasty (2014)