NAVIO®-Trained Surgeons

Dr. Steven Anderson is an orthopedic surgeon at AppOrtho, a member of Appalachian Regional Healthcare System.

Dr. Anderson is board certified by the American Academy of Orthopaedic Surgeons and has more than 15 years of experience in bone and joint surgery. Although he enjoys general orthopedics, Dr. Anderson’s practice focuses on hip, knee and shoulder surgery. He is particularly interested in primary and revision (or redo) joint replacement. Furthermore, Dr. Anderson is skilled in trauma surgery, hand surgery, and arthroscopic and minimally-invasive surgery.

More about Dr. Anderson >

Steven Anderson, MD

Orthopedic Surgeon, AppOrtho

Dr. James Califf is an orthopedic surgeon at AppOrtho. He is a South Carolina native with an undergraduate degree from the University of South Carolina. He obtained his medical degree from the Duke University School of Medicine. He completed his orthopedic residency at Duke Medical Center with a focus on spinal surgery after two years of general surgery training.

Over his more than 25 years in practice, he has further refined his treatment of spinal disorders, offering non-surgical as well as minimally invasive surgical techniques.

More about Dr. Califf >

James C. Califf, MD

Orthopedic Surgeon, AppOrtho

NAVIO® Total Knee Replacement Surgery

Total knee replacement surgery with the NAVIO Surgical System

More than 600,000 total knee replacement procedures are performed each year in the U.S. and more than 90% of these patients experience a dramatic relief in knee pain and are better able to perform common activites.1 The NAVIO Surgical System delivers robotics-assisted tools designed to help tailor your total knee replacement surgery to the unique shape and motion of your knee.

Robotics-assisted knee replacement planning with the NAVIO System

navio total

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.

CT-free

navio total

Other robotic-assisted knee replacement systems use computerized tomography, or CT, scans to help a surgeon visualize 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. 2

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.

Total knee replacement surgery without rods

Another method that can be used to determine the anatomic alignment of your new implants uses long, metal devices called intramedullary (IM) rods that are drilled into the central canal of the bone to show the alignment of the knee in relation to the hip. These rods are then used to attach the cutting guides necessary to guide the surgeon's saw blade as it shapes the bones to accept the new implants.

Because the NAVIO system has already gathered the anatomic alignment information about your knee, it eliminates the need for IM rods. Instead, your surgeon will use the system's handheld robotics-assisted tool (the NAVIO handpiece) to accurately position the NAVIO-specific cut guides which are held in place with a few small pins instead of the IM rod. This process leaves the central canal of your bone untouched. Implant alignment is a crucial factor in determining how long the implant will last 3, 4.

NAVIO brings robotics-assisted precision to total knee surgery

After removing the cutting guides, the prosthetic knee implants are implanted and your knee is checked to make sure it moves and is balanced correctly. It is 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.

Important safety notes

Individual results of joint replacement vary. Implants are intended to relieve knee pain and improve function, but may not produce the same feel or function as 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.

Disclaimer

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.

References

  1. American Academy of Orthopaedic Surgeon website, accessed March 7, 2017 //orthoinfo.aaos.org/topic.cfm?topic=A00389
  2. Ponzio DY, Lonner JH, Preoperative Mapping in Unicompartmental Knee Arthroplasty Using Computed Tomography Scans Is Associated with Radiation Exposure a..., J Arthroplasty (2014)
  3. 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.
  4. 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

All information provided on this website is for information purposes only. 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. If you are seeking this information in an emergency situation, please call 911 and seek emergency help.

All materials copyright © 2020 Smith & Nephew, All Rights Reserved.

NAVIO® Partial Knee Replacement Surgery

NAVIO partial knee replacement surgery

For people suffering from knee pain caused by osteoarthritis, whose damage is limited to a single compartment or area of the knee, partial knee replacement may be an option because it preserves healthy bone and ligaments while replacing the damaged area.1, 2 The NAVIO Surgical System uses robotics-assisted technology to help tailor partial knee replacement procedures to the unique shape and motion of each patient's knee anatomy.

Robotics-assisted planning for better surgical outcome

While it may seem counterintuitive, replacing only part of a knee joint can be more challenging than replacing the entire joint. This is because partial knee replacement must achieve an exact balance between the new implant - made of metal and plastic components - and the remaining portions of your natural anatomy made of bone and cartilage. As a result, one of the primary challenges of all partial knee replacements is precisely positioning the implant for each unique patient. Even minor changes in an implant's size or placement can cause the knee to function poorly or result in early failure of the implant and the need for future surgery.

The NAVIO Surgical System addresses the challenge of partial knee replacement by using both computer and robotic assistance to accurately map the surface of your knee, align your implant to your anatomy, and physically remove the bone necessary to place your new implant.3 This added level of assistance is important because implant alignment is a crucial factor in determining how long the implant will last. 5, 6

Robotic knee surgery without radiation

navio partial screen gif

Other robotic knee replacement systems use computerized tomography, or CT, scans to help a surgeon visualize 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.4

The NAVIO system eliminates the need for CT scans by using an advanced computer program (similar to GPS navigation on your phone) 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.

NAVIO Robotics-assisted partial knee replacement surgery

navio partial

After all of the information about your knee is gathered and your surgical plan is created, your surgeon will use a robotics-assisted surgical tool (the NAVIO handpiece) to physically remove the damaged surface of your bone so that your new implant fits properly. Using the same 3D model of your knee, the handpiece is able to differentiate between the damaged areas that need to be removed, and the healthy areas that will remain. The NAVIO handpiece uses a burr that removes damaged bone for your implant.

The NAVIO system doesn't replace your surgeon. Rather, it assists your surgeon by adding an extra layer of planning to the procedure.

Partial knee replacement with traditional techniques

By comparison, traditional surgical methods for partial knee replacement use mechanical cutting guides that help guide a saw blade as it removes the bone necessary to place the implant. The NAVIO Surgical System helps tailor your partial knee replacement procedure.

Important safety notes

Individual results of joint replacement vary. Implants are intended to relieve knee pain and improve function, but may not produce the same feel or function as 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.

Disclaimer

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, morbidly obese patients, or any other patients contraindicated for UKR, PFA, or TKA should not undergo a NAVIO procedure. Consult your physician for details to determine if NAVIO is right for you.

References

  1. Willis-Owen, Charles, et al, Unicondylar knee arthroplasty in the UK National Health Service: An analysis of candidacy, outcome and cost efficacy, The Knee 16, 473-478, //www.academia.edu/22765713, January 3, 2009
  2. Liddle, A.D., Pandit, H., Et al, Optimal Usage of Unicompartmental Knee Arthroplasty, The Bone & Joint Journal, //www.bjj.boneandjoint.org.uk/content/97-B/11/1506, November 3, 2015
  3. Lonner, Jess, Moretti, Vince, "The Evolution of Image-Free Robotic Assistance in Unicompartmental Knee Arthroplasty." The American Journal of Orthopedics, May/June 2016, 249-254. Accessed June 7, 2016
  4. Ponzio DY, Lonner JH, Preoperative Mapping in Unicompartmental Knee Arthroplasty Using Computed Tomography Scans Is Associated with Radiation Exposure a..., J Arthroplasty (2014)
  5. 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
  6. 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

All information provided on this website is for information purposes only. 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. If you are seeking this information in an emergency situation, please call 911 and seek emergency help.

All materials copyright © 2020 Smith & Nephew, All Rights Reserved.

Navio Robotic-Assisted Knee Surgery

Navio Robotic-Assisted Knee Surgery

Are you ready to address your knee pain?

Call us at (828) 386-2663

AppOrtho is the first and only orthopedics practice in western NC to offer robotics-assisted partial and total knee replacement using the NAVIO® surgical system, only at Watauga Medical Center.

How do I know if I am a candidate for robotics-assisted partial or total knee replacement using the NAVIO® system?

Although each patient must consult with a physician individually, typical partial knee replacement candidates share the following characteristics:

  • Knee pain that limits your activities regularly
  • Knee pain due to osteoarthritis
  • Non-surgical treatments are no longer effective

Meet with a NAVIO® trained orthopedic surgeon at AppOrtho today to see if robotics-assisted surgery is right for you. 

Partial Knee Replacement

Total Knee Replacement

NAVIO®-Trained Surgeons

Patient Testimonials

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, morbidly obese patients, or any other patients contraindicated for UKR, PFA, or TKA should not undergo a NAVIO procedure. Consult your physician for details to determine if NAVIO is right for you.